AZ8107069 [PANASONIC]
Snap Acting/Limit Switch, SPST, Momentary, Wire Terminal, Adjustable Rod Actuator, Panel Mount, ROHS COMPLIANT;型号: | AZ8107069 |
厂家: | PANASONIC |
描述: | Snap Acting/Limit Switch, SPST, Momentary, Wire Terminal, Adjustable Rod Actuator, Panel Mount, ROHS COMPLIANT |
文件: | 总24页 (文件大小:766K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
’06–’07
Limit Switches
These materials are printed on ECF pulp.
These materials are printed with earth-friendly vegetable-based (soybean oil) ink.
Please contact ..........
Matsushita Electric Works, Ltd.
Automation Controls Business Unit
Head Office: 1048, Kadoma, Kadoma-shi, Osaka 571-8686, Japan
Telephone: +81-6-6908-1050
Facsimile: +81-6-6908-5781
http://www.nais-e.com/
Limit Switches
ARCT1B272E ’06.9
All Rights Reserved © 2006 COPYRIGHT Matsushita Electric Works, Ltd.
Specifications are subject to change without notice. Printed in Japan.
ARCT1B272E 200609-1YT
Matsushita Electric Works, Ltd.
VL (AZ8) Mini
Limit Switches
COMPACT SIZE
LIMIT SWITCHES
A compact and accurate vertical limit switch. Type with a lamp which makes main-
tenance convenient; either a neon AC powered lamp or an LED DC powered lamp.
The cable can either be screwed in
directly, or can use U-shaped and circu-
lar pressure terminals.
6. Lamp connection can be either
spring type or lead wire type
• Spring type (wiring unnecessary)
(With neon or LED lamp type)
Inner construction
Wiring is unnecessary because the lamp
is directly connected to the terminals. By
simply changing the direction of the lamp
holder attachment, it is possible to dis-
play both lights during inoperability and
during operation (however, if both N.O.
and N.C. loads are connected, only the
inoperability lamp can be displayed.)
Cover
attachment screw
Cable
Cord vent
Cover
Terminal screw
Body
Construction permits lamp attach-
ment method to be changed.
Head block
Standard type
(Roller arm)
With lamps
Operating lamp
Inoperability lamp
(with shipping)
4. Mounting are possible to both front
and back
RoHS Directive compatibility information
http://www.nais-e.com/
<Front>
M4 attachment nut
FEATURES
1. Compact design approximately 1/3
of the AZ5 limit switches
M4 attachment bolt
• Lead wiring type <Current leakage: 0>
(LED lamp type only)
Because the wiring can be made parallel
to the load, current leakage from the
lamp can be reduced to 0. Even with a
slight leak, the electronic circuit incurring
the leak can be used safely.
Spring washer
Approx. 1/3
<Back>
r
M5 attachment bolt
7. Dust-proof, waterproof, oil resistant
construction
AZ5 type
VL
2. Au-clad contacts that can even use
low level circuit and little chattering
and bouncing
The built-in switch has Au-clad contacts
with excellent contact reliability and uses
a crossbar contact method, and more-
over, has a dual cutoff circuit (1 Form A
1 Form B contact) with little chattering
and bouncing due to computer-operated
analysis.
3. Easy wiring with full-open terminals
When the cover is removed, the termi-
nals are open as far as the flank, so the
necessity to insert your fingers into a
case to complete the wiring has been
removed. Moreover, the wiring space is
large despite the compact size, and the
terminals are spread in a tiered array, so
that wiring work can be completed very
easily.
The main unit and the cover are sealed
with rubber packing, and the cord runner
is doubly sealed by the cord vent. The
actuator is sealed by both a rubber cap
and an O ring in all models. Also, the
lens and cover are formed simultaneous-
ly with the lamp type, and moreover, a
nameplate is affixed to the upper sur-
face, thereby improving the already
excellent waterproof capabilities.
(Note: Applications directly involving the
cord entrance and the locations which
are always wet and oily, or submersion
in water or oil, cannot be used.)
Spring washer
5. Type with a lamp that can be used
with a wide range of voltages
• With neon lamp
Compatible with: 100 and 200V AC ;
Even at 100V AC, sufficient luminosity is
achieved through the diamond-cut lens.
Also with a long lifespan of more than 20
thousand hours.
• With LED lamp
Covers 6 to 48V DC and comes in three
types, 6V DC , 12V DC , 24 to 48V DC
Uses two highly luminescent LEDs and
in addition, sufficient luminosity is
achieved through the diamond-cut lens.
TYPICAL APPLICATIONS
Ideal for general plant facilities such as
engineering machinery, conveyer
machinery, and assembly lines
LED lamp type is also compatible with
low-voltage DC control circuits such as in
PCs and computers.
52
VL (AZ8)
PRODUCT TYPE
1. Standard type
Actuator
Push plunger
Part No.
AZ8111
AZ8112
AZ8122
AZ8104
AZ8108
AZ8107
AZ8166
AZ8169
Roller plunger
Cross roller plunger
Roller arm
Adjustable roller arm
Adjustable rod
Flexible rod
Spring wire
Note) When ordering an overseas-specified product,refer to the “FOREIGN STANDARDS” given below.
2. With neon lamp
Lamp connection
Spring type
Actuator
Push plunger
Lamp rating
Part No.
AZ811106
AZ811206
AZ812206
AZ810406
AZ810806
AZ810706
AZ816606
AZ816906
Roller plunger
Cross roller plunger
Roller arm
100 to 200V AC
Adjustable roller arm
Adjustable rod
Flexible rod
Spring wire
Note) When ordering an overseas-specified product,refer to the “FOREIGN STANDARDS” given below.
3. With LED
Lamp rating
Part No.
Lamp connection
Actuator
Push plunger
12V DC
24 to 48V DC
AZ8111161
AZ8112161
AZ8122161
AZ8104161
AZ8108161
AZ8107161
AZ8166161
AZ8169161
AZ8111661
AZ81122661
AZ8122661
AZ8104661
AZ8108661
AZ8107661
AZ8166661
AZ8169661
AZ811116
AZ811216
AZ812216
AZ810416
AZ810816
AZ810716
AZ816616
AZ816916
AZ811166
AZ811266
AZ812266
AZ810466
AZ810866
AZ810766
AZ816666
AZ816966
Roller plunger
Cross roller plunger
Roller arm
Spring type
Adjustable roller arm
Adjustable rod
Flexible rod
Spring wire
Push plunger
Roller plunger
Cross roller plunger
Roller arm
Lead wire type
Adjustable roller arm
Adjustable rod
Flexible rod
Spring wire
Notes)1. LED rating 6V DC type is available. When ordering, add suffix 162(spring type) or 662(lead wire type) to the standard part No.
2.The 24 to 48V DC rated lamp is recommended for PC input use.
3. The roller arm and adjustable roller arm are available with metal rollers on a custom-made basis. Please inquire.
4. Option
Application
Part No.
AZ8801
VL limit conduit adapter
VL, VL with lamp, VL-T
FOREIGN STANDARDS
Standard
Applicable product
Part No.
File No.
Ratings
: E122222
: 5A 250V AC
Pilot duty B300
UL
Order by standard part No. However,
add “9” to the end of the part No. for the
model with neon lamp.
Product type : Standard model, with neon lamp
File No.
Ratings
: E122222
: 5A 250V AC
Pilot duty B300
C-UL
Product type : Standard model, with neon lamp
File No.
Ratings
: J9551203
TÜV
: AC-15 2A/250V~
Order by standard part No.
Product type : Standard model only
53
VL (AZ8)
SPECIFICATIONS
1. Rating
1) Standard type
2) Types with neon lamp and with LED
Load
Resistive load
(cos φ]1)
Inductive load
(cos φ]0.4)
Resistive load
(cos φ]1)
Inductive load
(cos φ]0.4)
Rated control
voltage
Types
Rated control voltage
125V AC
250V AC
125V DC
5A
5A
3A
2A
125V AC
With Neon lamp
5A
5A
3A
3A
2A
–
240V AC
0.4A
0.1A
With LED
24V DC
2. Characteristics
Contact arrangement
Initial contact resistance, max.
Contact material
1 Form A 1 Form B
15mΩ (By voltage drop 6 to 8V DC at rated current)
Gold clad silver alloy (cadmium free)
Min. 100MΩ
Initial insulation resistance (At 500V DC)
1,000Vrms for 1 min Between non-consecutive terminals 2,000Vrms for 1 min Between
dead metal parts and each terminal 2,000Vrms for 1 min Between ground and each terminal
Initial breakdown voltage
In the free position
Max. 98m/s2 {10G}
Shock resistance max.
Vibration resistance
In the full operating position
Max. 294m/s2{30G}
Standard type: Max. 55Hz Type with indicator: 10 to 50Hz, double amplitude of 1.5mm
107 (at 120 cpm)
3ꢀ105 (at rated resistive load) 5ꢀ106 (Magnetic contactor FC-100 200V AC load)
Min. 2ꢀ104 hours (Neon lamp type)
Mechanical
Electrical
Expected life (Min. operations)
Life of lamp
Ambient temperature/Ambient humidity
Max. operating speed
–20 to +60°C –4 to +140°F/Max. 95%
120 cpm
3. EN60947-5-1 performance
Item
Rating
250VAC
2.5kV
2.5kV
5A
Rated insulation voltage (Ui)
Rated impulse withstand voltage (Uimp)
Switching overvoltage
Rated enclosed thermal current (Ithe)
Conditional short-circuit current
Short-circuit protection device
Protective construction
100A
10A fuse
IP64
Pollution degree
3
4. Operating characteristics
Characteristics
O.F. (N {gf}) max.
Actuator
Pretravel (P.T.), max. Movement Differential Overtravel (O.T.), min. Totaltravel (T.T.), min.
R.F. (N {gf}) min.
mm inch
(M.D.), max. mm inch
mm inch
mm inch
Push plunger
Roller plunger
8.83 {900}
5.88 {600}
1.47 {150}
0.49 {50}
1.5 .059
0.7 .028
4 .028
5.5 .217
Cross roller plunger
Roller arm
20°
20°
10°
10°
10°
–
75°
75°
95°
95°
Adjustable roller arm
Adjustable rod
7.84 {800}~3.35 {342} 0.49 {50}~0.21 {21}
7.84 {800}~1.99 {203} 0.49 {50}~0.12 {12}
20°
75°
95°
Flexible rod spring wire
0.88 {90}
–
30 (1.181)
20 (.787)
50 (1.969)
*Characteristics measured at bent condition: min. radius 100mm 3.937inch.
Notes) 1. Keep the total travel values in the specified range. Otherwise the actuator force may rise to several times the operating force, resulting in a mechanical failure or much shorter service life.
2. For the operating characteristics, refer to the TECHNICAL INFORMATION.
5. Protective construction
6.Lamp rating
Protective construction
Types
Rated operating voltage Operating voltage range
Internal resister
120kΩ
VL Mini limit switch
(with lamp)
VL Mini limit switch
IEC
IP60
IP64
Neon lamp
100 to 200V AC
6V DC
80 to 240V AC
5 to 15V DC
9 to 28V DC
20 to 55V DC
ꢀ
ꢀ
ꢀ
ꢀ
2.4kΩ
4.7kΩ
15kΩ
LED
12V DC
24 to 48V DC
DATA
WIRING DIAGRAM
1. Life curve
2. Actual load life curve (relay coil load)
Output circuit
VL
13
N.O.
11
14
12
,
Life curve resistive load
N.O.
N.C.
(
)
φ
AC 240VC cos =1
1000
1000
500
N.C.
500
Terminal
400
300
200
13
14
0
0.5 1.0
NK HC
3
5
50
260 700
HPHG VC-20 FC-10 FC-35 FC-100
Various relay loads VA
100
30
(
)
0
5
10
11
12
,
Load current
A
Note: The FC magnetic contactor series is 200V AC. The NK
is 2 Form C 24V DC type.
54
VL (AZ8)
10.2
.402
10.2
.402
7
.276 dia.
mm inch
3
.118
DIMENSIONS
stainless steel plunger
PT 1.5max
General
Push plunger
Standard type
AZ8111
tolerance:
0.4 .016
2-4.1 +0.2 dia.
0
4
.157
4
.157
26.5
1.043
mounting holes
(
)
M3ꢀ6
cover screw
2-M5 P=0.8 tapped
.276 in depth
mounting holes
(
)
2-M5 P=0.8
.276 in depth
mounting holes
20.4 0.3
.803 .012
7
7
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
( )
2-M5 P=0.8
mounting holes
(
)
2-M5 P=0.8 tapped
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
25
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
30.3
1.193
.984
Standard type
With lamp
12.5 dia.ꢀ3.8
Roller plunger
Standard type
AZ8112
10.2
.402
10.2
.402
General
tolerance:
0.4 .016
stainless steel roller
PT 1.5max
14.8
.583
2-4.1 +0.2 dia.
38
1.496
0
4
.157
4
.157
mounting holes
M3ꢀ6
cover screw
(
)
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
2-M5 P=0.8
.276 in depth
mounting holes
20.4 0.3
.803 .012
7
7
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
25
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
30.3
1.193
.984
Standard type
With lamp
10.2
.402
10.2
.402
12.5 dia.ꢀ3.8
Cross roller plunger
Standard type
AZ8122
General
tolerance:
0.4 .016
stainless steel roller
PT 1.5max
14.8
.583
2-4.1 +0.2 dia.
38
1.496
0
4
.157
4
.157
mounting holes
M3ꢀ6
cover screw
(
)
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
2-M5 P=0.8
.276 in depth
mounting holes
20.4 0.3
.803 .012
7
7
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
25
30.3
1.193
.984
Standard type
With lamp
18 dia.ꢀ7
41.2 0.8
1.622 .031
36.2 0.8
45.2 0.8
1.780 .031
40.2 0.8
Roller arm
Standard type
AZ8104
nylon roller
General
(
Roller can be rotated
and locked in any
1.425 .031
1.583 .031
tolerance:
0.4 .016
)
position through 360°
10.2
.402
10.2
.402
M4 arm
M4 arm fixing nut
Weight: 156.5g
fixing screw
2-4.1 +0.2 dia.
(
with hexagonal
0
)
holes
(
)
(
2-M5 P=0.8
)
mounting holes
2-M5 P=0.8 tapped
.276 in depth
mounting holes
18.5
.728
18.5
.728
7
7
.276 in depth
12.5
.492
mounting holes
M3ꢀ6
cover screw
20.4 0.3
.803 .012
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
15.1
.594
.827 .008
28
1.102
25
.984
20.4 0.3
.803 .012
Standard type
With lamp
38.1
1.5
30.3
1.193
55
VL (AZ8)
Adjustable rod
Standard type
AZ8107
(
)
(
)
44.9
44.9
mm inch
5.5
(
)
(
)
1.768
1.768
.217
36.3 0.8
36.3 0.8
1.429 .031
1.429 .031
General
tolerance:
0.4 .016
x
2.6 .102 dia. rod
(
Roller can be rotated
and locked in any
)
position through 360°
M4 rod fastening plate
screw with hexagonal holes
10.2
.402
10.2
.402
Adjustable lenght of rod
(
)
30-118
Rod fastening plate
2-4.1 +0.2 dia.
0
18.5
.728
18.5
.728
mounting holes
Rod mounting metal
12.5
Rod mounting metal
.492
M6 mounting rod
fastening screw with
hexagonal holes
M6 mounting rod
fastening screw with
hexagonal holes
M3ꢀ6
(
)
2-M5 P=0.8
.276 in depth
mounting holes
cover screw
7
64
2.520
56 0.3
2.205 .012
64
2.520
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
7
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
20.4 0.3
.803 .012
25
.984
30.3
1.193
(
)
(
)
(
)
(
)
44.9 1.768
44.9 1.768
Standard type
With lamp
Adjustable roller arm
Standard type
AZ8108
(Length of arm can be adjustable within 30 to 70mm 1.181 to 2.756inch by 1mm .039inch pitch)
47.7 0.8
47.7 0.8
1.878 .031
1.878 .031
42.7 0.8
42.7 0.8
1.681 .031
1.681 .031
18 dia.ꢀ7 nylon roller
33.5 0.8
33.5 0.8
1.319 .031
28.5 0.8
1.122 .031
Adjustable lenght of arm
(
Roller can be rotated
1.319 .031
General
tolerance:
0.4 .016
(
)
30-70
and locked in any
position through 360°
x
28.5 0.8
1.122 .031
)
M4 arm fastening
plate screw with
hexagonal holes
10.2
.402
10.2
.402
Arm fastening plate
2-4.1 +0.2 dia.
18.5
.728
18.5
.728
0
Mounting metal
Mounting metal
mounting holes
12.5
.492
M6 arm fastening
plate screw with
hexagonal holes
M6 arm fastening
plate screw with
hexagonal holes
M3ꢀ6
cover screw
(
)
2-M5 P=0.8
.276 in depth
mounting holes
7
56 0.3
2.205 .012
64
2.520
64
2.520
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
7
Operation indicator
2.0
.079
(
)
2.0
.079
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
20.4 0.3
.803 .012
25
.984
30.3
1.193
(
)
(
)
(
)
(
)
46.4 1.827
46.4 1.827
Standard type
With lamp
Flexible rod type (Should be used with less than 50mm 1.969inch of T.T.)
10.2
.402
10.2
.402
Standard type
PT 30 max
General
tolerance:
0.4 .016
AZ8166
3 dia.
.118
3 dia.
.118
Nylon rod
Nylon rod
Weight: 112g
41.5
1.634
5.8 dia.
.228
5.8 dia.
.228
100 1.5
3.937 .059
2-4.1 +0.2 dia.
0
4
.157
4
.157
mounting holes
M3ꢀ6
cover screw
(
)
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
2-M5 P=0.8
.276 in depth
mounting holes
20.4 0.3
.803 .012
7
7
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
25
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
30.3
1.193
.984
Standard type
With lamp
56
VL (AZ8)
(Should be used with less than 50mm 1.969inch of T.T.)
Spring wire
Standard type
AZ8169
General tolerance: 0.4 .016
10.2
.402
10.2
.402
PT 30 max
1.2 dia.
.047 stainless
steel wire
1.2 dia.
.047 stainless
steel wire
Weight: 112g
51.5
2.028
100 1.5
3.937 .059
2-4.1 +0.2 dia.
0
4
.157
4
.157
mounting holes
M3ꢀ6
(
)
(
)
2-M5 P=0.8 tapped
.276 in depth
mounting holes
2-M5 P=0.8
.276 in depth
mounting holes
cover screw
20.4 0.3
.803 .012
7
7
56 0.3
2.205 .012
64
2.520
64
2.520
Operation indicator
(
)
(
)
2-M5 P=0.8 tapped
mounting holes
2-M5 P=0.8
mounting holes
2-M3ꢀ23
cover screw
14
.551
14
.551
7.5 0.2
.295 .008
7.5 0.2
.295 .008
21 0.2
15.1
.594
25
15.1
.594
.827 .008
28
1.102
20.4 0.3
.803 .012
30.3
1.193
.984
Standard type
With lamp
mm inch
OPTION
VL Limit Conduit Adapter
t=7 max.
.276
AZ8801
Applicable wire
56
13/64
(
Electric wire name
Vinyl cabtire cord (VCTF)
Vinyl cabtire cable (VCT)
Finished outside diameter
Same as with the
)
VL limit switch
8.7 to 11 dia.
.343 to .433 dia.
23
.906
18
.709
Part A
(
Tighten up
)
with no gap
14.8
.583
21
(A set of mounting hex. socket screws is supplied.)
.827
28
27.8
1.102
1.094
(
Same as with the
)
VL limit switch
(
)
(
)
Side
Front
Note: Diagram shows adapter when installed to an AZ8104.
57
VL (AZ8)
LAMP LIGHTING CIRCUIT
1. Spring type
1) When connecting load to N.O. side:
When the switch is at free position, the
lamp is lit, and when the switch operates,
the lamp turns off. (Use the lamp holder
in the same condition as when it was at
the time of shipment.)
2) When connecting load to N.C. side:
When connecting switch is at free posi-
tion, the lamp turns off, and when the
switch operates, the lamp is lit.
(Use the lamp holder, changing it direc-
tion by 180°.)
3) When connecting loads to both N.O.
and N.C. sides: Same as in 1).
(Use the lamp holder in the same condi-
tion as when it was at the time of ship-
ment. In this case, it is impossible to use
it, changing its direction by 180°.)
(With neon lamp)
(With LED)
(With neon lamp)
(With LED)
(With neon lamp)
(With LED)
Built-in switch
Neon lamp Resistor
LED Resistor
LED Resistor
LED Resistor
Neon lamp Resistor
13
14
13
11
14
13
14
N.O.
N.C.
Load
N.O.
N.C.
Load
Load
N.O.
N.C.
Load
11
12
Load
Load
Load
Load
Load
N.O.
N.O.
N.O.
12
11
12
13
14
12
13
14
12
13
14
12
Resistor
Neon lamp
Built-in switch
AC power source
Built-in switch
N.C.
N.C.
N.C.
AC power source
11
AC power source
11
11
Built-in switch
Built-in switch
Built-in switch
–
+
–
+
–
+
DC power source
DC power source
DC power source
2. Lead wire type (only for types with LED)
1) When giving indication on N.O. side
and N.C. side, operation is same as that
in the case of the spring type. However,
when load is connected to both N.O. side
and N.C. side, indication can be given on
both N.C. side and N.O. side.
2) When the indication circuit is connect-
ed with load in parallel:
Load performs the same operation as
the indication circuit does.
(When load operates, the lamp is lit, and
when load is turned off, the lamp goes
out.)
LED
N.O.
N.C.
13
14
Resistor
Load
11
12
Built-in switch
• More loads than for one circuit cannot
be controlled.
• There is no leakage current.
–
+
DC power source
mm inch
MOUNTING DIMENSIONS
1. Surface mounting
2. Rear mounting
1) When installation hole is tapped.
2) Through hole mounting
t
M4 .157 tap
P=0.7
M5 .197 mounting screw
mounting nut
(
)
4-5.5 .217 dia.
4-4.5 .177 dia.
M4 .157
M4 .157
mouting screw
mounting screw
56 0.3
2.205 .012
56 0.3
2.205 .012
56 0.2
2.205 .008
21 0.3
.827 .012
21 0.2
.827 .008
21 0.3
.827 .012
washer
washer
washer
Depth of screw holes > 15mm .591inch
Thickness of panel < 5mm .197inch
Length of bolt < panel thickness t+7mm .276inch
58
VL (AZ8)
WIRING (unit: mm inch)
Applicable fasten terminal
Fasten terminal
1. Insulation distance greater than
6.4 mm
N.C. use
N.O. use
Max. 6.4 .252
3.0 to 3.7 dia.
.118 to .146
Max. 6.4 .252
Max. 6.4 .252
Reinforced plastic with superior electrical
insulation characteristics is used in the
wiring and charging sections. Despite its
compactness, to maintain stable insula-
tion performance, the insulation distance
for each part is greater than 6.4 mm
without using an insulation sheet.
(Complies with UL, CSA, and VDE.)
2. Includes ground terminal
32 1.260
16 .630
3.0 to 3.7 dia.
.118 to .146
3.0 to 3.7 dia.
.118 to .146
Max. 10
.394
Max. 10
.394
With insulated grip
Max. 6.4 .252
Max. 6.4 .252
Max. 6.4 .252
3.0 to 3.7 dia.
.118 to .146
3.0 to 3.7 dia.
.118 to .146
3.0 to 3.7 dia.
.118 to .146
3. Loose stop terminals used.
Max. 14
.551
Max. 14
Max. 10
.394
.551
Terminal
screw
(
)
Projection 8 locations
Grounding terminal
(
)
Groove 8 points
(
)
Spring 4 locations
Terminal
washer
Head block direction
change
Applicable wire
(Roller arm, adjustable roller arm, adjustable rod types)
Applicable wire
Wire name
Wire-strand
Conductor
Finished outside diameter
Actuator heads
may be moved
2-wire
3-wire
4-wire
0.75mm2·1.25mm2
)
Vinyl cabtire cord (VCTF)
Vinyl cabtire cable (VCT)
2.0mm2
(
Lock screw Black
in 90° incre-
ments to any of
four directions,
by removing
one screw.
0.75mm2·1.25mm2
Round shape
6 dia. to 9 dia.
2-wire
0.75mm2
1.0 dia. to 1.2 dia.
1.6 dia.
Flat shape Max. 9.4
600V vinyl insulation sealed cable
(VVF)
2-wire
CAUTIONS
1. Over travel (O.T.)
• Use where inflammable or corrosive
gases exist.
3) Use within an ambient temperature of
–20 to +60°C –4 to +140°F. (However,
do not allow it to freeze.)
9) When used outdoors (in places where
there is exposure to direct sunlight or
rain such as in multistory car parks) or in
1) When overtravel is too large, life is
shortened due to possible damage to the
mechanism. Please use in the following
appropriate range.
environments where ozone is generated,
the influence of these environments may
cause deterioration of the rubber materi-
al. Please consult us if you intend to use
a switch in environments such as these.
10) Do not store in places where organic
gas might be generated or in places of
high dust content or high humidity.
3. Installation
1) Tighten the three cover installation
screws equally. Tightening torque is 0.2
to 0.29 N·m (2 to 3 kg·cm).
2) Avoid having extra cord length pushed
into the cord vent. Any extra length when
wiring should be allowed to rest in its
natural position.
4) In order to maintain the reliability at a
high level under practical conditions of
use, the actual operating conditions
should be checked for the benefit of the
quality of the product.
5) If OT is too big, the life of limit switch
will be shortened switching friction. Use it
with enough margin of OT. 70% of OT
standard value will be good for use.
6) Do not use the switch in a silicon
atmosphere. Case should be taken
where organic silicon rubber, adhesive,
sealing material, oil, grease or lead wire
generates silicon.
Types
Plunger
(AZ8111, 8112, 8122)
Roller Arm
(AZ8104, 8107, 8108)
Flexible Rod
(AZ8166, 8169)
Overtravel
1.5 to 2.0mm
.059 to .079inch
20 to 30°
15 to 20mm .591 to
.787inch (at the top)
2. Ambient conditions
1) Because these switches are not of
immersion protected construction, their
use in water or oil should be avoided.
Also, locations where water or oil can
normally impinge upon the switch or
where there is an excessive accumula-
tion of dust should be avoided.
2) The use of these switches under the
following conditions should be avoided. If
the following conditions should become
necessary, we recommend consulting us
first.
7) When wiring, do not connect the lead
wires directly to the terminals, but use
the crimp terminals and tighten them to a
torque of 0.39 to 0.59 N·m {4 to 6
kg·cm}.
• Use where there will be direct contact
with organic solvents, strong acids or
alkalis, or direct exposure to their vapors.
8) Avoid use in excessively dusty envi-
ronments where actuator operation
would be hindered.
59
VL (AZ8)
4. Lamp holder
5. Spring type
1) As shown in the photograph, wrench a
minus-driver in the gap between the
cover and the part of the indicator holder
indicated by the arrow in the direction of
insertion, and raise the lamp a little.
2) After removing the indicator holder,
insert it in the reverse direction, and
push it in until a snap is heard.
3) After changing the direction of the
indicator holder, put the cover on it in
such a way that the spring touches the
top of the terminal screw.
1) When loads are connected to both
N.O. and N.C. only the indicatin at non-
operation time can be used.
2) Take special care not to damage or
deform the contact spring during change
of indicator holder direction or during
connection work.
3) In the case of VL limit switch with
neon lamp, if the lamp is connected in
series in a 100V circuit, the lamp ceases
to be lighted.
However, for a 200V circuit, up to 2
lamps can be connected in series.
6. Lead type
(Unless the spring rests completely on
the terminal screw, distortion of the
spring, failure in lighting of the lamp or
short circuit may result.)
1) When loads are connected to both
N.O. and N.C. indication can be given on
both N.O. and N.C. sides, but it is impos-
sible to connect the indication circuit to
the load in series and parallel.
Driver
Spring
Lamp
holder
Cover
60
SELECTOR CHART
Classification
Subminiature size
Compact size
HL (AZH)
Limit Switches
(Die cast case)
HL (AZH)
Limit Switches
(Die cast case)
HL (AZH)
Limit Switches
(Plastic case)
ML (AZ7)
Limit Switches
(standard)
ML (AZ7)
SL (AZ3) Micro
Limit Switches
Product name
Limit Switches
(Epoxy-Sealed terminal type)
Appearance
Head code
AZH20
22
AZH10
12
AZ3
AZH23
AZ7
AZ7
• A limit switch with
• High sealability that • High sealability that • Bifurcated type
high-density mounting satisfies IEC IP67. satisfies IEC IP67. available.
• Wiring is screw-ter- • Less wiring, less
• Switches installed
with both economical
and compact Z-basic
microswitches and
• An ML compact limit
switch with an
epoxy-sealed case
that completely
that improves stroke
capacity through an
O.T. absorption-type • Bifurcated type also
spring.
• Perfect for applica-
tions that prioritize
economy.
minal type.
installation connec-
tor type.
• LED lamp type also
available.
Feature
limit switch protective encloses the
available.
construction.
• Coil spring system
provides long life.
terminal.
• LED lamp type also
available.
Rubber-cover type Socket with cord type
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
ꢀ
ꢀ
–
ꢀ
ꢀ
Dust-proof type IP60
Abrasion-proof type IP64
Surge-proof type IP65
Corrosion-proof type IP67
ꢀ
–
–
–
–
–
–
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
ꢀ
–
–
–
–
–
–
–
–
–
ꢀ
–
ꢀ
–
ꢀ
–
Oil-resistant type
–
Neon
LED
–
ꢀ
ꢀ
(with LED lamps)
[Bifurcated type]
–
–
–
–
[Standard type] [Bifurcated type]
[Standard type] [Bifurcated type]
5A125V AC
5A250V AC
5A8V DC
0.1A125V AC
0.1A8V DC
5A125V AC
0.1A125V AC
0.1A8V DC
4A250V AC
without LEDlamps with LEDlamps 5A250V AC
0.1A125V AC 0.1A24V AC
0.1A8V DC
0.1A14V DC
0.1A30V DC
10A250V AC
10A125V AC
0.4A115V DC
10A250V AC
10A125V AC
0.4A115V DC
Ratings
(load resistance)
4A125V AC
4A30V DC
0.1A14V DC
0.1A30V DC
5A8V DC
0.1A14V DC
0.1A30V DC
5A14V DC
5A14V DC
5A30V DC
5A30V DC
0.5A125V DC
0.25A250V DC
0.5A125V DC
0.25A250V DC
0.1A 125V DC
107
105
107
5x105
107
5x105
107
5x105
107
2x105
107
2x105
Mechanical
Life
(Min.ope.)
Electrical
0. 98N {100gf}
1. 96N {200gf}
(short lever type)
2. 94N {300gf}
2.45N {250gf}
3. 92N {400gf}
11.8N {1,200gf}
(Plunger type)
2.45N {250gf}
3.92N {400gf}
11.8N {1,200gf}
(Plunger type)
1.47N {150gf}, 1.77N {180gf}, 1.47N {150gf}, 1.77N {180gf},
1.96N {200gf}, 2.16N {220gf}, 1.96N {200gf}, 2.16N {220gf},
2.35N {240gf}, 2.75N {280gf}, 2.35N {240gf}, 2.75N {280gf},
Operating force
(max.)
(hinge lever type)
2.45N {250gf}
3. 92N {400gf}
5.88N {600gf} max.
5.88N {600gf} max.
Available
actuators
• Rubber cover (Solder
and quick connect
(#110) terminal)
Vinyl cabtire cable
(1m 3.281ft)
Terminals
Wiring
Screw terminal
Cabtire code
Connector terminal
Cabtire code
Screw terminal
Cabtire code
Screw terminal
Cabtire cable
• Socket with cord
Cabtire code
Cabtire cable
Cross-angled wiring
28 ꢀ 14mm
1.102 ꢀ .551inch
(M4 screw)
Mounting pitch
(Applicable screw)
33mm 1.299inch
(M4 screw)
33mm 1.299inch
(M4 screw)
33mm 1.299inch
(M4 screw)
25.4mm 1.000inch
(M4 screw)
25.4mm 1.000inch
(M4 screw)
Available standards
UL, CSA
P.13
UL, CSA, TÜV, CE
P.18
UL, CSA, TÜV, CE
P.18
UL, CSA, TÜV, CE
P.18
UL, C-UL, TÜV, CE
P.33
–
Page
P.33
Note: Excludes limit switch replacement parts
ꢁ Actuators
Push plunger
Roller plunger
Cross-roller plunger
Roller arm
Adjustable roller arm
Adjustable rod
Fork
Spring wire
Flexible rod
Hinge lever
Roller lever
One-way roller lever
Roller lever
Short
Short
Long
Short
Long
Long
2
Subminiature size
vertical type
Classification
Product name
Compact size vertical type
Vertical type
Touch type
Door switch
QL (AZ4) Micro
Limit Switches
DL (AZD1) Mini
Limit Switches
VL (AZ8) Mini
Limit Switches
AZ5
Limit Switches
VL-T Mini Touch
Limit Switches
Compact
Magnelimit
Magnelimit
Appearance
Head code
AZ4
AZD1
AZ8
AZ5
AZ84
AZC3
AZC1
• A subminiature, highly accu-
rate limit switch with built-in
environment-proof functions.
• Cord extraction can be
changed in four directions,
due to the dedicated L socket.
• LED lamp can also be
attached.
• Excellent safety even if the • In addition to the
• Built-in dedicated • Operate just by
• Secured by magnet • Secured by magnet
contact point is welded,
due to the forced contact
opening mechanism.
• Block mount system makes
parts replacement easy.
• Conforms to DIN stan-
dards.
characteristics of
stand mounted limit (1 Form A
switches, is com- 1 Form B).
pact, easily instal- • Different types of
lable, highly reli-
able, lightweight,
and economical.
circuit breaker
touching lightly.
•
Built-in switch detection
•
Built-in switch detection
• Comes with sen-
sitivity adjustment Dual-role switch in
Dual-role switch in
one unit.
Feature
function and indi-
one unit.
actuator avail-
able.
cates operations. • Safe design prevents • Construction possi-
• VL type touch
limit switch
operator making
errors.
ble with 100V AC
power.
L socket type
Socket with cord type
ꢀ
ꢀ
ꢀ
ꢀ
–
ꢀ
ꢀ
–
ꢀ
ꢀ
–
ꢀ
ꢀ
–
Dust-proof type IP60
Abrasion-proof type IP64
Surge-proof type IP65
Corrosion-proof type IP67
–
–
–
–
–
–
–
–
–
ꢀ
ꢀ
ꢀ
ꢀ
–
ꢀ
–
–
1) ꢀ
ꢀ
ꢀ
–
–
–
–
ꢀ
–
ꢀ
–
ꢀ
ꢀ
–
Oil-resistant type
–
ꢀ
ꢀ
ꢀ
ꢀ
Neon
LED
–
–
–
–
–
–
ꢀ
ꢀ
–
–
–
[Standard type] [With lamp type]
[Standard type] [With lamp type]
Input voltage
12-24V DC
Output current
150mA
2)
5A250V AC
5A125V AC
[Neon lamp type] 10A125V AC [Neon lamp type]
5A 240V AC
6A250V AC
6A380V AC
5A24V DC
5A 125V AC
5A 250V AC
5A 30VDC
Ratings
(load resistance)
5A (2A) 125V AC
5A (2A) 250V AC
5A (2A) 30VDC
6A250V AC
2A500V AC
0.8A125V DC
10A 125V AC
6A 240V AC
[LED lamp type]
6A 24V DC
5A250V AC
0.4A125V DC 5A 125V AC
[LED lamp type]
3A 24V DC
107
3x105
107
1.5x105
107
3x105
107
5x105
107
105
5x104
105
5x104
Mechanical
Life
(Min.ope.)
Electrical
–
6.86N {700gf}
(Plunger type)
1.11N {113gf}, 4.41N {450gf}
(Arm type)
0.88N {90gf},
5.88N {600gf},
8. 83N {900gf},
19.16N {2,000gf}
Operating force
(max.)
(hinge lever type)
6.37N {650gf}
4.90N {500gf}
3.29N {400gf}
1.39N {142gf}
26.67N {2,720gf}
–
–
3.43N {350gf}
Available
actuators
Free attachment
Screw terminal
• L socket (Solderand Screw terminal
quick connect
(#110) terminal)
• Socket with code
(Conduit connec-
tors: PF: 1/2, PG:
13.5 types)
Tab #110 terminal
Lead wire
Terminals
Wiring
Screw terminal
Screw terminal
Screw terminal
Cabtire cord
Cabtire cord
Cap tire cable
Cabtire cable
(wiring type)
Cabtire cord
Cabtire cable
Cabtire code
Cabtire code
Cabtire cord
14 ꢀ 28mm
22 ꢀ (47mm)
21 ꢀ 56mm
30.2 ꢀ 58.7mm
21 ꢀ 56mm
827 ꢀ 2.205inch
(M4 screws)
Mounting pitch
(Applicable screw)
30mm 1.181inch
(M3)
52mm 2.047inch
(M4)
.551 ꢀ 1.102inch .866 ꢀ 1.850inch .827 ꢀ 2.205inch 1.189 ꢀ 2.311inch
(M4 screws)
(M4 screws)
(M4 screws)
(M5 screws)
Available standards
UL, CSA
P.38
UL, C-UL, TÜV, CE UL, C-UL, TÜV, CE
P.44 P.52
UL
–
UL, C-UL
P.72
UL, C-UL, CE
P.74
Page
P.61
P.68
Notes: 1) Excludes exposed part of terminals, externally mounted components, and magnet catches.
2) Figures in parentheses ( ) indicate rated current of water-resistant type.
ꢁ Other listed products
Product name
PS Hall Sensors
Appearance
AN9
Detector distance 2.5mm .098inch
• Magnetic detector type subminiature sensor
Feature
• Perfect for slide table limiting
• Economical price with operating display lamp attached.
Page
P.76
3
ACTUATOR SELECTION
Pretravel Overtravel Operating
Vibration
shock
Type
Classification
Accuracy
Characteristics
(P.T.)
(O.T.)
force (O.F.)
High-level accuracy gives firm detection for position
fixing, etc., by using perpendicular movement.
Push plunger type
Small
Medium
Large
Excellent
Excellent
Roller plunger type
(includes cross
roller plunger)
Operating range can be widened by mounting
Excellent accessory actuators like cams, dogs, cylinders, etc.
High-level detection for position fixing.
Small
Medium
Large
Large
Medium
Medium
Medium
Medium
Small
Excellent
The stroke in the direction of revolution is large at
between 45° and 90° and the lever angle can be set
Excellent at will to within 360° for easy use. Wide angle type
(large O.T.) available. Can be used for wide-range
position fixing.
Small to
large
Good to
excellent
Roller arm type
Adjustable roller
arm type
Small to
large
Good to
excellent
Lever length can be altered to allow rough operation
Good
Large
detection using the roller lever characteristics.
Wide range of operations, and convenient for
uneven mountings. Lightest operation among the
Adjustable rod type
Large
Large
Large
Good
Good
revolving operation type of limit switches. Rod length
is adjustable, and bending is also easy.
If operated up to 55° position, revolves automatically
to retain 90° position. Two dog operation enables
Fork
Medium
Large
Good
Excellent
recovery operation through single dog, or for any-
thing that has caused the roller position to slip.
Excluding the thread direction, direction can be
adjusted up to 360°. Operating power is the lowest
of the limit switches, and is effective in detecting
when direction and conditions are uneven. In order
to absorb the movements after operation in the actu-
ator part, work slippage tolerances are also large.
Spring wire and
flexible rod
Medium
Large
Possible
Possible
Possible
Possible
Possible
Possible
Using a low speed, low torque cam, the lever can
assume various shapes suited to the operation. The
lever is very sturdy.
Hinge lever type
Roller lever type
Medium
Medium
Medium
Medium
Small
Possible
Possible
Possible
Possible
Suited to high speed cams through the attachment
of a hinge roller lever.
Large
Small
Operation is possible with both hinge lever type and
one way operation, but the roller will break if operat-
ed in the opposite direction, rendering the unit inop-
erable. Can be used to prevent opposite direction
movement.
One way roller lever
type
Medium
Medium
Medium
Medium
Roller lever type
The roller position can be changed.
4
TECHNICAL INFORMATION
ꢀ Standard glossary
ꢀ CONSTRUCTION
ꢀ OPERATING CHAR-
Fixed rating values
Actuator
ACTERISTICS
•
•
The values that guarantee the stan-
dards for the limit switch characteris-
tics and functions. For example, the
rated current and rated voltage,
which are preset conditions (load
type, current, voltage, frequency,
etc.)
This part directly detects movement
of the dog, cam, and so forth in the
operating unit, and transmits external
force to the changeover mechanism,
thereby engaging the moveable con-
tact and operating the switch.
Operating Force (O.F.)
•
The force required to cause contact
snap-action. It is expressed in terms
of force applied to the actuator.
Release Force (R.F.)
•
The force to be applied to the actua-
tor, at the moment contact snaps
back from the operated position to
unoperated position.
Headblock
An independent part of the actuator
mechanism of the Limit Switch.
•
Operating object
•
The mechanism and mountings that
operate the limit switch actuator.
Used for mechanical operators
such as cams and dogs.
Wiring vent (cord vent)
•
Pretravel (P.T.)
•
The seal on the wiring at the mouth
of the wiring vent. Also called the
conduit vent for the screw hole used
in the wiring.
Distance of the actuator movement
from free position to operating posi-
tion.
Detective object
•
The unit other than mechanical
mountings that operate the limit
switch. Products, parts, jigs, etc.
Overtravel (O.T.)
•
Terminals
•
The distance which the actuator is
permitted to travel after actuation
without any damage to the switching
mechanism.
The part of the wiring work in the
wiring that forms the circuit for elec-
trical input and output.
Reaction spring (movable spring)
•
The mechanical part that switches
the limit switch contact is called
either the reaction spring or the
moveable spring.
Total Travel (T.T.)
•
The distance which the actuator is
permitted to travel from free position
without any damage to the switching
mechanism.
Roller
Contact
•
Head block
When the counter-spring revolves,
power is switched on and off through
the contact between metal parts
Actuator
Cam
Roller
Arm
Movement Differential (M.D.)
The distance from operating to
release position of the actuator.
•
Plunger
Reset spring
Pushbutton
Contact gap
•
The effective clearance between the
fixed contact and the moveable con-
tact. Also called breaking distance.
Operating Position (O.P.)
•
The position of the actuator when the
traveling contact snaps to the fixed
contact.
Contact arrangement
•
Front view
Cam
The construction of the electrical
input/output circuit depending on
use. For example, the following two
applications:
Release Position (R.P.)
•
Cord vent
The position of the actuator when the
traveling contact snaps back from
the operating position to its original
position.
Roller
Reset spring
Pushbutton
F
Free Position (F.P.)
Position of the actuator when no
force is applied to it.
•
( )
[1 Form C Single Pole Double Throw ]
N.O. N.C.
VL limit switch
COM
Free position
F
O. P. Operating position
O. P. Operating position
N.C.
N.O.
N.C.
P.T. P.T.
O.T.
M.D.
O.T.
M.D.
R.P.
(
)
[1 Form Z Double Break Double Make ]
N.O.
R.P.
Contact type
•
•
Used in opposition to a semiconduc-
tor switch that has switching charac-
teristics. Fulfills switch functions
through a mechanical ON/OFF con-
tact.
R.F.
R.T.
M.D.
O.T.T.F.
O.F.
P.T.
Terminal mold
T.T.
After wiring, the connecting part is
molding by epoxy resin for water-
proof, oil-resistant and dust-proof
capabilities.
F.P.
O.P.
R.P.
Standard position
,
,
Note: F.P. O.P. and R.P. are expressed as distances
from the standard position.
5
TECHNICAL INFORMATION
ꢀ Glossary relating to the EN60947-5-1
EN60947-5-1
Rated impulse withstand voltage
Pollution degree
•
•
•
EN standard same as IEC947-5-1
(Uimp)
Expresses in levels the environment
in which the switch is used. The four
levels are shown below.
The peak impulse current value
which enables the switch to resist
without insulation breakdown.
Utilization categories
•
The following examples express the
classification of switches by category
of use.
Limit switches come under contami-
nation level 3.
Rated enclosed thermal current
(Ithe)
•
Pollution
degree
Current
The current value that enables cur-
rent to flow without exceeding the
specified maximum temperature in
the recharging contact switch. If the
pins are made of brass, the maxi-
mum temperature limit is 65°C 149°F.
Contents
Category
AC-15
Contents
type
No contamination or, even if conta-
mination is present, only non-con-
ducting contamination is generated.
Controls electromagnetic
loads in excess of 72VA
(Volt Amperes.)
1
AC
Normally, only non-conducting cont-
amination is generated, but there
remains the possibility of temporary
conducting contamination when the
circuit is formed.
Controls resistance
loads and semiconductor
loads.
DC
DC-12
2
Conditional short circuit current
The current the switch can resist
until the short circuit protection
device is activated.
•
•
•
Rated operational voltage (Ue)
The maximum rated voltage for
switch operation. This must never
exceed the maximum ratings insula-
tion voltage (Ui).
•
Conducting contamination is gener-
ated, or else dry non-conducting
contamination is generated by cir-
cuits which can be anticipated.
3
4
Short circuit protection device
A device that protects the switch
from short circuits through a circuit
break (breakers, fuses, etc.)
Permanent conducting contamina-
tion is generated by dust, rain,
snow, and other conductors.
Rated operational current (Ie)
The maximum rated current for
switch operation.
•
•
Switching overvoltage
The surge momentarily generated
when a circuit is closed. Must be
lower than the Uimp value.
Rated insulation voltage (Ui)
The maximum rated current value
which guards the switch’s insulation
functions, forming the parameters for
the resistance values and the mount-
ing distance.
6
PROTECTIVE CONSTRUCTION
ꢀ Protective construction
Expresses the degree of protective construction that guards the level of functionability of the switch against ingress of solid
objects, water, and oil. The standards are IEC529 (IEC: International Electrotechnical Commission) standards. IEC standards
determine the level of protection against both water and solid objects, but not against oil.
ꢁ Protection against both water and solid objects
□ □
Level Protection level
Protection level and test methods
IP-
0
3
4
5
6
7
—
No particular protection
Protection against rain fall
Protection against flying foam
Protection against spray
Rain-proof
Foam-proof
Spray-proof
Water proof
No damage incurred when sprayed with water
continuously for 10 minutes at angles of up to 60°
from the perpendicular.
No damage incurred when sprayed with water
continuously for 10 minutes at angles of up to 180°
from the perpendicular across a wide area.
Protection
against water
Nozzle radius 6.3mm .248inch
Water pressure 30kP
No damage incurred when sprayed with a jet of water
for 3 minutes from all directions, as per the diagram
on the left.
3m
9.843ft.
Protection against waves
Nozzle radius 12.5mm .492inch
Water pressure 100kP
Water does not invade the interior when sprayed with
a jet of water for 3 minutes from all directions, as per
the diagram on the left.
3m
9.843ft.
Protection against corrosion while
immersed in water
Corrosion-
proof
Water does not invade the interior during immersion
for 30 minutes at a depth of 1m 3.281ft..
Level Protection level
Protection level and test methods
Protection against solid
objects exceeding
1mm .039inch in size.
1.0 .039 dia.
4
5
6
—
—
A hard wire 1mm dia. .039 inch dia. across cannot
penetrate the inside.
Protection against dust
Protection against
solid objects
The unit is left for 8 hours in an atmosphere in which
2kg of talcum powder per 1m3 is floating. No damage
incurred from talcum powder penetrating the inside.
Protection againt dust
(dust does not penetrate)
Dust-proof
The unit is left for 8 hours in an atmosphere in which
2kg of talcum powder per 1m3 is floating. The talcum
powder does not penetrate the inside.
Note: 1. All of the tests cited above were conducted with the cord vent (conduit vent) tightly shut.
2. The above protective constructions are based on IEC standard but major differences may arise due to length of use and operating environment.
This should be thoroughly discussed and verified.
3. When the corrosion-proof model is immersed in water for 30 minutes or more, verify that no water has penetrated the inside before use.
7
CAUTIONS FOR USE
ꢀ DESIGN OF OPERATING DOG AND OPERATING SPEED
Pay attention to the following points
when designing the dog for limit switch
operation.
1. Make the dog faceplate as smooth
as possible.
5) Roller plunger type
3) 0.5m/s ! V&2m/s
α
α
α
V
h
h
F
2. Adjust both the dog angle and the
set arm angle as below, depending on
the operating speed.
3. The depth (h) of the dog effects the
lifespan of the limit switch. Therefore,
set the depth to a maximum of 80% of
the Total Travel (T.T.)
4. The relationship between the speed
of the dog (V = m/s) and the tip angle
(α) is as follows:
θ
o
α
Vmax (m/s)
0.5
h
α
Vmax (m/s)
(0.5 to 0.7) T.T.
(0.6 to 0.8) T.T.
20°
30°
40°
35°
30°
25°
0.7
0.9
1.3
2.0
0.25
Even if overriding the dog, set the for-
wards and rearwards motion exactly
the same, and avoid any settings that
make the actuator accelerate rapidly
from the dog.
The maximum tolerable speed can be
extended by further reducing the dog
rise angle from 45° when 0.5m/s !
V&2m/s. It is necessary to set the arm
so that the dog’s cutting surfaces are
always parallel (θ o = 90°– α)
1) V&0.2m/s
5. Operation speed
α = 45° to 90°
1) When the operation (acting and
reverting) speed is exceedingly slow,
switching of the contacts will become
unstable and this could cause prob-
lems such as failure to make contact
and welding. As a guide, the speed
should be at least 1mm/s.
2) When the operation (acting and
reverting) speed is exceedingly fast,
be careful because the violent motion
could cause breakage and with
increased frequency, contact switching
will not be able to keep up. As a guide,
the switching frequency should be
within 20 times per minute.
V
h
4) Overriding the dog (V&0.2m/s)
α
α
α
Vmax (m/s)
h
45°
60°
0.2
0.1
60 to 90°
0.05
When V&0.2m/s, set the arm to per-
pendicular and set the arm rise angle
to between 45° and 90°. If the dog rise
angle is reduced, the maximum tolera-
ble speed is increased.
α
Vmax (m/s)
0.2
45°
60°
0.1
60 to 90°
0.05
As a rule, α = 45° is optimum.
If overriding the dog, set the arm per-
pendicularly, so that α =45°. If the dog
angle is reduced, the tolerable speed
is increased.
2) V&0.5m/s
α = 45°
V
h
F
= 45°
o
θ
Because the arm jiggle is as a mini-
mum at a comparative speed such as
V&0.5m/s, setting both the dog angle
so that it travels perpendicularly and
the arm angle to 45° is optimum.
8
CAUTIONS FOR USE
ꢀ PROTECTION CIRCUIT
1. The ON/OFF circuit for the guidance
load may suffer contact damage due to
surges or inrushes when the power is
turned either ON or OFF.
Consequently, insertion of a protective
circuit as per the following diagram is
recommended, in order to protect the
contacts.
2. Do not connect either irregular poles
or power sources to a switch contact.
Power connection examples (irregular
pole connection)
3. Avoid circuits where power may find
a way between the contact points (as
this may cause welding.)
NO GOOD
NO GOOD
Load
L
L
200V
Circuit
Cautions for use
100V
Load
(1) r must be a minimum
of 10Ω;
(2) When using AC power:
Limit switch contact
Load
GOOD
L
4. Using electronic switch circuits (low
power, low current)
Q
Impossible when R
impedance is large.
Possible when c, r
impedance is suffi-
ciently small com-
pared with R imped-
ance.
r
c
R
W
1) Bouncing and chattering are gener-
ated due to collision between the con-
tacts when the limit switch is switching
between them, and this sometimes
causes such problems as white noises
and error pulses in both the electronic
circuit and the reverberation equip-
ment.
Load
Load connected to same pole
Limit switch contact
Can be used with both
AC and DC as appro-
priate.
Example of unsuitable power connec-
tion (abnormal power connection)
r
R
~
r
R
Risk of AC and DC being mixed.
c
Load
C: 0.1 µF
NO GOOD
2) If the generation of bouncing and
chattering becomes a problem, it is
necessary to consider installing a CR
circuit or other absorption circuit given
the circuit design.
L
Limit switch contact
AC
(1) Dedicated DC use.
(2) AC is impossible
Diode
R
DC
3) This is particularly necessary when
high contact reliability is needed, and
is unsuitable for silver contact switch-
es. Switches with gold contacts pos-
sess excellent performance.
Limit switch contact
Can be used with both
AC and DC as appro-
priate.
ZNR
R
Varistor
Load
L
9
CAUTIONS FOR USE
ꢀ CAUTIONS FOR USE
1) Do not attempt to physically alter
any part of the switch itself, such as
the actuator, or switch attachment
vent, as this may cause alterations to
both characteristics and performance,
and damage the insulation.
2) Do not pour any lubricants such as
oil or grease onto the moving parts of
the actuator, as there is a possibility
that this will cause a malfunction due
to seepage into the inside, and impair
the motion. Silicon-based grease in
particular affects the contact points
badly.
3) If the switches are not to be used for
an extended period of time, their con-
tact reliability may be reduced due to
oxidation of the contact points.
Because accidents may result from the
impaired conductivity, always imple-
ment a check beforehand.
4) Prolonged continuous use of the
switch hastens deterioration of the
parts (especially the seal rubber) and
may cause a malfunction in the
release. For this reason, always imple-
ment a check beforehand.
5) Usage in the vicinity of either the
switch operating position (O.P.) or the
release position (R.P.) results in unsta-
ble contacts. If using the NC contact
point, set the actuator to return to the
free position (F.P.) Also, is using the
NO contact point, hold the ratings val-
ues down to 70 to 100% for the over-
travel (O.T.)
7) Do not apply unreasonable force to
the actuator, as this may result in dam-
age and impaired movement.
12) Long term storage (including dur-
ing transport) in high temperature or
high humidity environments or where
the atmosphere contains organic or
sulfide gas, will cause sulfide or oxide
membrane to form on the contact sur-
faces. This in turn will cause unstable
or failed contacting that may lead to
functional malfunction. Please verify
the atmosphere when storing and
transporting.
13) Packaging should be designed to
reduce as much as possible the poten-
tial influence of humidity, organic gas,
and sulfide gas, etc.
14) Please avoid sudden changes in
temperature. This is a cause of switch
deformation and encourages the seal
structure to breathe, which may lead to
seal failure and operational malfunc-
tion.
8) The switch, if dropped, may break
due to excessive vibration and impact.
Therefore, please use extra caution
when transporting and installing.
9) Condensation inside the switch may
occur if there are rapid ambient tem-
perature changes when the switch is in
a high temperature and humidity.
Since this occurs easily during marine
transport, be extra cautious of what the
environment will be when shipping.
Condensation is the phenomenon in
which water vapor condenses into
switch-adhering water droplets when
the temperature rapidly drops in a
high-temperature, high-humidity
atmosphere or when the switch is
quickly moved from a low temperature
location to a place of high temperature
and high humidity. It is the cause of
insulation deterioration and of rust.
10) Be careful of freezing in tempera-
tures below 0°C. Freezing is the phe-
nomenon in which moisture adhering
to the switch from condensation or
when in unusually high-humidity envi-
ronments freezes onto the switch
when the temperature drops below the
freezing point. Please extra caution
because freezing can lock moving
parts, cause operational delays, or
interfere with conductivity when there
is ice between the contacts.
15) If installing a thermoplastic resin
case, the use of a spring washer tight-
ened directly against the case will
cause the case to collapse and
become damaged. Therefore, please
add a flat washer before tightening.
Also, be careful not to install if the
case is being twisted.
16) For the purpose of improving quali-
ty, materials and internal structure may
be changed without notice.
17) When used outdoors (in places
where there is exposure to direct sun-
light or rain such as in multistory car
parks) or in ambient temperature envi-
ronments where ozone is generated,
the influence of these environments
may cause deterioration of the rubber
material. Please consult us if you
intend to use a switch in such environ-
ments.
6) If the actuator is forced beyond its
total travel (T.T.), the internal mecha-
nism may be damaged. Always use
within the T.T.
11) In low-temperature, low-humidity
conditions, plastic becomes brittle and
the rubber and grease harden, which
may lead to malfunction.
ꢀ PRECAUTIONS RELATING TO THE INSTALLATION ENVIRONMENT
Avoid using in silicon environments
such as organic silicon-based rubber,
solvents, sealants, oil, grease, or
wiring.
10
IMPROVEMENT EXAMPLES
Poor design
Improved design
Explanation
@
@
@
@
@
@
@
@
ꢀ Problem • Dog adjustment is difficult.
ꢀ Solution • Separate each one until the dog
r
r
r
r
r
r
r
r
can be adjusted.
ꢀ Problem • The dog axis is too long, and slips
out during operation.
• For this reason, the limit switch
operating position slips.
Dog axle
ꢀ Solution • Firmly fix the dog plate to the base.
Detector
Printer
ꢀ Problem • The detector sinks, applying force
Detector
to the limit switch.
• The limit switch O.T. cannot be set.
ꢀ Solution • Relieve the pressure using an
additional actuator, and the O.T.
can also be set.
Rotation axle
Conveyer
Conveyer
ꢀ Problem • The area around the actuator coil
is easily damaged.
• Friction generated during opera-
tion.
ꢀ Solution • Relieve the friction by installing an
additional actuator.
Rotation axle
• Change the type of limit switch.
ꢀ Problem • Workers keep bumping the actua-
tor.
ꢀ Solution • Fit a protective cover to the side of
the limit switch.
Limit
ꢀ Problem • Because the cord vent for the limit
switch faces upwards, water droplets
and so forth can easily penetrate the
interior.
Protective cover
• The cord is constantly moving and
thus easily damaged.
ꢀ Solution • Fix the limit switch position on the
stationary board.
• Fit a protective cover, so that water
and oil cannot come into direct con-
tact with the limit switch.
ꢀ Problem • The cord is not fixed, and gets
pulled during work.
• Dog adjustment is ineffective.
ꢀ Solution • Change the limit switch position,
and fix the cord.
• Attach an adjustment mechanism
to the dog.
ꢀ Problem • The limit switch is near a high-tem-
perature area.
• Dog adjustment is ineffective, and
the dog keeps bumping the lever.
ꢀ Solution • Move the limit switch further away.
• Make dog adjustment possible,
and change the shape of the unit.
High temperature
High temperature
11
IMPROVEMENT EXAMPLES
Poor design
Improved design
Explanation
ꢀ Problem • The detector is scratched.
Detector
Dumper
• Limit attachment adjustments are
difficult
@
• The actuator is damaged.
• Specimen transfer is impeded.
ꢀ Solution • Fix the limit position to behind the
dumper to solve the above prob-
lems.
r
Conveyer
ꢀ Problem • The transfer path of the detector is
not fixed, and it keeps bumping the
actuator.
• The operating position is unstable.
• The actuator is damaged.
ꢀ Solution • Stabilize the operating position by
fitting an additional actuator.
Rotation axle
@
@
@
r
r
r
Conveyer
Conveyer
•
Make limit switch adjustment possible.
Detector
Detector
ꢀ Problem • Stroke adjustment ineffective.
• Release the limit switch position,
and ensure that the dog does not
bump the lever.
ꢀ Solution • Make dog adjustment possible.
Dog
• Change the limit switch position,
and sure that the dog does not
bump the lever.
ꢀ Problem • The cam shape is unsuitable
(especially during release and
strike release.)
• Direction of limit switch attachment
is unsuitable.
ꢀ Solution • Render the cam shape smooth.
• Change the limit switch position.
12
Table of Recommended Substitute Products for Discontinued Products
Products to be discontinued
AZ1 series Limit switches
Recommended substitute products
ML (AZ7) Limit switches
Page
P.33
AZ2 series Limit switches
ML (AZ7) Limit switches
ML (AZ7) Limit switches
ML (AZ7) Limit switches
P.33
P.33
P.33
Slitted type Limit switches (AZ6)
New slitted type Limit switches (AZ66)
Products to be discontinued
Recommended substitute products
Installation
You cannot use this nut
AZ1∗∗∗
AZ7∗∗∗
for panel installation.
Please note that installation method and
operation characteristics are different.
AZ2∗∗∗
AZ7∗∗∗
Please note that installation method and
operation characteristics are different.
AZ6∗∗∗
AZ7∗∗∗
Please note that installation method and
operation characteristics are different.
AZ66∗∗∗
AZ7∗∗∗
Please note that installation method and
operation characteristics are different.
77
FOREIGN STANDARDS OVERVIEW
1. International Standards
IEC standard
3. Europe
EN standard
International Electrotechnical Commission
By promoting international cooperation toward all
problems and related issues regarding
standardization in the electrical and electronic
technology fields, the IEC, a non-governmental
organization, was started in October, 1908, for the
purpose of realizing mutual understanding on an
international level. To this end, the IEC standard
was enacted for the purpose of promoting
international standardization.
European Standards/Norme Europeennee
(France)/Europaishe Norm (Germany)
Abbreviation for European Standards. A unified
standard enacted by CEN/CENELEC (European
Standards Committee/European Electrical
Standards Committee). EU and EFTA member
nations employ the content of the EN standards into
their own national standards and are obligated to
abolish those national standards that do not agree
with the EN standards.
2. North America
(1) Germany
UL (Underwiters Laboratories Inc.)
VDE (Verband Deutscher Elektrotechniker)
The VDE laboratory was established mainly by the
German Electric Technology Alliance, which was
formed in 1893. It carries out safety experiments
and passes approval for electrical devices and
parts. Although VDE certification is not enforced
under German law, punishment is severe should
electrical shock or fire occur; therefore, it is, in fact,
like an enforcement.
This is a non-profit testing organization formed in
1894 by a coalition of U.S. fire insurance firms,
which tests and approves industrial products
(finished products). When electrical products are
marketed in the U.S., UL approval is mandated in
many states, by state law and city ordinances. In
order to obtain UL approval, the principal parts
contained in industrial products must also be UL-
approved parts.
LISTING MARK
VDE
Fig. 1
RECOGNITION MARK
UL approval is divided into two general types. One
is called “listing” (Fig. 1), and applies to industrial
products (finished products). Under this type of
approval, products must be approved
unconditionally. The other type is called
“recognition” (Fig. 2), and is a conditional approval
which applies to parts and materials.
TÜV (Technischer Überwachungs-Verein)
TÜV is a civilian, non-profit, independent
organization that has its roots in the German Boiler
Surveillance Association, which was started in 1875
for the purpose of preventing boiler accidents. A
major characteristic of TÜV is that it exists as a
combination of 14 independent organizations (TÜV
Rheinland, TÜV Bayern, etc.) throughout Germany.
TÜV carries out inspection on a wide variety of
industrial devices and equipment, and has been
entrusted to handle electrical products, as well, by
the government.TÜV inspection and certification is
based mainly on the VDE standard.
Fig. 2
CSA (Canadian Standards Association)
Certification
This was established in 1919 as a non-profit, non-
governmental organization aimed at promoting
standards. It sets standards for industrial products,
parts, and materials, and has the authority to judge
electrical products to determine whether they
conform to those standards.The CSA is the ultimate
authority in the eyes of both the government and the
people in terms of credibility and respect. Almost all
states and provinces in Canada require CSA
approval by law, in order to sell electrical products.
As a result, electrical products exported from Japan
to Canada are not approved under Canadian laws
unless they have received CSA approval and
display the CSA mark. Approval is called
TÜV certification can be obtained from any of the 14
TÜVs throughout Germany and has the same
effectiveness as obtaining VDE certification.
Fig. 3
TÜV Rheinland
Component Acceptance
Fig. 4
“certification”, and products and parts which have
been approved are called “certified equipment”, and
display the mark shown in Fig. 3. The mark shown
in Fig. 4 is called the “Component Acceptance”
mark, and indicates conditional approval which is
applicable to parts. The C-UL mark shown in Fig. 5
(finished products) and Fig. 6 (parts) indicates that
the product has been tested and approved in UL
laboratories, based on UL and CSA standards,
through mutual approval activities.
Fig. 5
Fig. 6
78
SAFETY STANDARDS RECOGNITION
Limit switches
UL recognized
Approved ratings
CSA certified
Approved ratings
TÜV approval
Approved ratings
Product name
File No.
File No.
File No.
–
SL limit switches
E122222
4A 250V AC
LR55880
4A 250V AC
–
5A 250V AC
5A 250V AC
Dies-cast case standard load type
DC-12 1A 30V-
Pilot duty B300
Pilot duty B300
J9650514
Die-cast case low level load type
(includes connector type)
0.1A 30V DC
0.1A 30V DC
DC-12 0.1A 30V-
HL limit
switches
E122222
LR55880
5A 250V AC
Pilot duty B300
5A 250V AC
Pilot duty B300
AC-15 2A 250V~
DC-12 1A 30V-
Plastic case standard load type
Plastic case low level load type
Standard type
J9650515
J9551204
0.1A 30V DC
10A 250V AC
0.1A 30V DC
10A 250V AC
DC-12 0.1A 30V-
AC-15 2A 250V~
E122222
(C-UL)
E122222
ML limit
switches
Epoxy-sealed terminal type
With lamp
–
–
–
–
–
–
–
–
–
–
–
–
QL limit switches
E122222
5A 250V AC
LR55880
5A 250V AC
–
J9551203
–
–
Standard type
With neon lamp
AC-15 2A 250V~
–
VL limit
switches
5A 250V AC
Pilot duty B300
E122222
(C-UL)
5A 250V AC
Pilot duty B300
E122222
6A 380V AC
Pilot duty A300
10A 1/2HP 125V AC
6A 1/2HP 250V AC
E122222
(C-UL)
6A 380V AC
DL limit switches
E122222
E99838
J9551205
AC-15 2A 250V~
Pilot duty A300
Vertical limit switches
–
–
–
–
–
–
–
–
–
–
E43149
(C-UL)
E43149
(C-UL)
E122222
(C-UL)
Standard type
Water-resistant type
5A 250V AC
2A 250V AC
5A 250V AC
2A 250V AC
Compact
Magnelimit
E43149
5A 250V AC
Pilot duty B300
5A 250V AC
Pilot duty B300
Magnelimit
E122222
CE MARKINGS OVERVIEW
The EN standards were established as
universal EU standards in order to facili-
tate EU directives. These standards
were merged with the international IEC
standards and henceforth reflect the
standards in all countries. Also, the CE
markings show that products conform to
EC directives, and guarantee the free
flow of products within the EC.
Limit switches conforming to EN/IEC standards
The limit switches shown below conform to both EN and IEC standards, and may dis-
play the CE markings.
Product classification
Product name
Suitable standard
EN60947-5-1
EN60947-5-1
EN60947-5-1
EN60947-5-1
EN60947-5-1
Approving body
File No.
J9650514/J9650515
J9551204
HL
ML
TÜV
TÜV
TÜV
TÜV
–
Limit switches
VL
J9551203
DL
J9551205
Magnelimit
–
Note: Refer to the page for each individual product for detailed approval conditions and approved types. Moreover, the HL limit
switch alone does not display the CE mark as standard. If the CE mark is necessary, add (CE) to the end of the part No.
when ordering.
Appropriate EC directives
for control equipment
products
What are EN standards? CE markings and EC
An abbreviation of Norme Europeenne
(in French), and called European
directives
The main EC directives that are to do
with machinery and electrical equipment
are the machinery directive, the EMC
directive, the low voltage directive, and
the telecom directive. Although these
directives have already been issued, the
date of their enactment is different for
each one. The machinery directive was 1
January 1995. The EMC directive was 1
January 1996, and the low voltage direc-
tive was enacted from 1 January 1997.
The telecom directive was established by
the separate CTR (Common Technology
references.)
The world’s largest single market, the
Standards in English. Approval is by vote
European Community (EC) was born on
among the CEN/CENELEC member
1 January 1993 (changing its name to
countries, and is a unified standards lim-
EU in November 1993. It is now always
ited to EU member countries, but the
expressed as EU, apart from EC direc-
contents conform to the international
tives.) EU member country products
ISO/IEC standards.
have always had their quality and safety
If the relevant EN standard does not
guaranteed according to the individual
exist, it is necessary to obtain approval
standards of each member country.
based on the relevant IEC standard or, if
However, the standards of each country
the relevant IEC standard does not exist,
being different prevented the free flow of
the relevant standard from each country,
goods within the EU. For this reason, in
such as VDE, BS, SEMKO, and so forth.
order to eliminate non-tariff barriers due
to these standards, and to maximize the
merits of EU unification, the EC direc-
tives were issued concomitant to the
birth of the EU.
79
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