FF-SLM200R2 [HONEYWELL]
Analog Circuit;
Honeywell 
Type 2 muting interface
FF-SLM Series
For personnel/material discrimination in dangerous zones
FEATURES
• Muting interface with safeguarding
function based on a cyclic performance
test
• Approved as a Type 2 safety control unit
per IEC/EN 61496-1 when used with a
U
light curtain from the FF-SLC range
(FF-SLC35, FF-SLC55 or FF-SLC18)
®
L
C
US LISTED
• Replaces the FF-SLU100R2 control unit
• Input: 3 muting sensors: 2 start muting,
1 end muting (optional)
• Output: 2 safety relays with guided
contacts (2A/125 Vac)
The FF-SLM200R2 muting interface is a module designed to work with the light
curtains from the FF-SLC range. It replaces the FF-SLU100R2 as the system’s con-
trol unit to build a Type 2 electrosensitive protective equipment (ESPE) in compli-
ance with the International standard IEC/EN 61496-1. When combined with an
FF-SLC light curtain and connected to specific muting sensors that complete the
system for this type of application, the FF-SLM200R2 control unit provides an
efficient solution to the problem of personnel/material discrimination at dangerous
access points characterised by transit of pallets.
• Response time 0.015 sec
• Supply voltage 24 Vdc
APPLICATIONS
• Automatic palletizing / depalletizing
systems
• Material handling and storage systems
• Packaging and wrapping machines
• Assembly lines
The FF-SLM200R2 control unit checks safe functioning of the sensing device by
sending a test signal and assessing its response time. Correct functioning of exter-
nal auxiliary relays or contactors is also checked at each test cycle, with permanent
automatic monitoring of the muting and override function circuits. Control unit sta-
tus is provided continuously through LEDs while the self-diagnostic output permits
remote management of information regarding correct functioning of the device.
According to safety regulations, the muting function can be activated only if two
signals are present. Muting sensors are therefore required, which provide the con-
trol unit with information (muting signals) regarding transit of the material
“authorised” to access the dangerous zone. The FF-SLM200R2 control unit
manages the muting function using 2 or 3 inputs to which sensors with relay
output or sensors with PNP static type output can be connected. In particular,
switching must be of the DARK ON type.
The control unit activates and de-activates the muting function only with the cor-
rect muting sequence, characterised by a specific signal timing, at its inputs. To
activate the muting function, the material that passes through the dangerous ac-
cess point must be detected by both sensor 1 or sensor 2 (within four seconds).
During the period in which the function is active, the FF-SLM200R2 control unit is
in muting status, indicated externally by a white indicator light located close to the
dangerous zone and which is permanently checked by the unit.
An end-muting sensor (sensor 3) can be used to check the distance between two
consecutive pallets.
If the machine stops with the material in the area controlled by the light curtain, a
manual operation is required to restart the system: the override function. This func-
tion, which sets the control unit to override status, must be carried out through
simultaneous activation of two manual controls.
!
WARNING
MISUSE OF DOCUMENTATION
•
The information presented in this product sheet (or catalogue) is for reference only. DO NOT USE this document as system
installation information.
•
Complete installation, operation and maintenance information is provided in the instructions suplied with each product.
Failure to comply with these instructions could result in death or serious injury.
FF-SLM Series
• Industrial Safety Products •
275
FF-SLM Type 2 muting interface
• Type 2 according to IEC/EN 61496-1
• 3 inputs: 2 start muting, 1 end muting (optional)
• Replaces the FF-SLU100R2 control unit when used
with FF-SLC light curtains
U
®
L
C
US LISTED
Dimensions in meters / feet, millimeters / inches, weights in kg / lbs
Features
Power supply
Power consumption
24 Vdc ±20%
8W
Output relays
2 N.O. contacts 2A, 125 Vac / 1 N.C. contact 2A, 125 Vac
Self-diagnostic output
Muting sensors
1 N.O. contact 0.5A, 25 Vac - 60 Vdc / contact open in case of faulty operation
DARK ON, relay output 1 N.O. contact or PNP static output
Muting sensors output feature
Muting signaling external lamp
Response time (1)
100mA, 24 Vdc
24 Vdc, 0.5…5W
£15 ms
Minimum duration of the test command
Reset time from start of the test
Muting signal response time
Electrical connections (2)
Cable length (3)
10 ms
150 ms
300 ms
Terminal blocks
100 m max. / 328 ft max.
0 to 55°C / 32 to 131°F
IP 40
Operating temperature
Sealing (housing)
Sealing (terminal blocks)
Mechanical mounting
Dimensions
IP 20
Quick mounting on rail according to EN 50022-35
152 x 73 x 118 mm / 5.98 x 2.87 x 4.64 in.
800 g / 1.76 lb
Weight
Ordering information:
FF-SLM200R2
73/2.87
Notice:
(1) Output circuit de-energization delay in case
of field interrupted.
(2) Use isolating lugs.
(3) We recommend shielded cable where the
level of electrical disturbances is higher
than the specified IEC 801-4 level IV.
152/5.98
276
• Industrial Safety Products •
FF-SLM Series
Connection diagram
(1) Test input: the safeguarding
function of the system relies
on the use of this input. This
input enables the cyclic
activation of the test and the
reset of the system at power
on or after each intrusion in
the detection field (the con-
tact should be maintained
during 10msec/test dura-
tion: 150m sec).
Receiver
FF-SLR
Emitter
FF-SLE
GND
GND
N.C.
(4)
(4)
6
6
5
4
3
2
1
N.C.
TEST
N.C.
N.C.
0V
5
4
3
2
1
OSSD status
Output
0V
Power supply
24Vdc ±20%
Power supply
24Vdc ±20%
24Vdc
24Vdc
(2) FSD monitoring: the setting
of this feedback control al-
lows the monitoring of the
external relays K1 and K2. In
case of failure of one relay,
the control unit remains in a
stop condition until the fail-
ure cause is removed.
1
24Vdc
0V
32
31
30
Power supply
24Vdc ±20%
2
(4)
3
4
29
28
SLM200R2
Self-diagnostic output
(3)
6
7
8
5
Test
(1)
K2-1
Control
6
27
26
25
24
23
22
21
20
19
18
17
(3) Self-diagnostic output: this
output provides an alarm
signal when a drop of syn-
chronism is detected be-
tween the two inner relays A
and B (if the feedback con-
nection is set, the alarm sig-
nal is also provided in case
of drop of synchronism be-
tween the two external re-
lays K1 and K2).
K1-1
(2)
contacts
7
Power supply
muting sensors
without FSD
8
monitoring (2)
9
Override
10
11
12
13
14
15
16
Muting sensors connection,
see diagram below
command
External muting indicator
24Vdc 0.5-5W
A-1
A-2
B-1
B-2
B-3
K2
K1
L1
N
A-3
(4) All the ground terminals
must be connected to the
same potential.
Use 230Vac electrically insulated push-buttons.
K2-2
K1-2
Machine stopping
circuitry
Muting sensors and light curtain positioning
Safe zone
Dangerous zone
Conveyor movement
FF-SLM Series
• Industrial Safety Products •
277
Muting sensor positioning when using inductive sensors
Corresponding connection diagram
Barrier
(receiver)
Barrier
(receiver)
Power supply
Sensor 2a
Sensor 2b
Sensor 2a
Sensor 2b
26
Sensor 1a
Pallet
Pallet
Sensor 1b
25
Sensor 1a
Sensor 1b
Sensor 1a
Sensor 1b
Sensor 2a
Barrier
Barrier
(emitter)
(emitter)
Sensor 2a
24
Muting sensor positioning when using photoelectric sensors
Barrier
Barrier
Barrier
(receiver)
Reflector 1
(receiver)
(receiver)
Barrier
Sensor 2
Reflector 1
Sensor 2
Sensor 2
Sensor 2
Reflector 1
Reflector 1
Reflector 3
Reflector 3
Reflector 3
Reflector 3
Human
Pallet 2
Pallet
Pallet
Pallet 1
Sensor 3
Sensor 3
Sensor 3
Reflector 2
Reflector 2
Sensor 1
Sensor 1
Reflector 2
Barrier
(emitter)
Barrier
(emitter)
Barrier
(emitter)
Barrier
Sensor 1
Reflector 2
Muting management beams
Barrier protection
Corresponding connection diagram
Power supply
24 Vdc ± 20%
24 Vdc
0 Vdc
Connection to
emitter or receiver
SLM200R2
Test
Sensor 1
Sensor 2
Sensor 3
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• Industrial Safety Products •
FF-SLM Series
Status tables
SLM200R2 control unit status
BREAK FAIL
GUARD
CLEAR
FAIL (FAIL K1-K2)
Barrier output
area free
area
area free
area
occupied
occupied
SLM200R2
output
14-19
15-18
16-17
Self-diagnostic output
Relay K1
K1-1
K1-2
K2-1
K2-2
Relay K2
Sensor status
Object presence
Object absence
Sensor 1
Sensor 2
Sensor 3
Control unit in MUTING status
Area controlled free
Area controlled occupied
Barrier output
SLM200R2
outputs
14-19
15-18
16-17
K1-1
K1-2
K2-1
K2-2
Relay K1
Relay K2
Muting sequence
Occupied
Sensor 1 (or 2)
Free
Occupied
Free
Sensor 2 (or 1)
TS1S2
TS1S2
Occupied
Free
Barrier
Note: The signals represent the voltage logical levels at the inputs of the control unit.
TS1S2 is the time between detection of the material in transit by sensor 1 (or 2) and
detection by sensor 2 (or 1). If TS1S2 is less than 4 seconds, the FF-SLM200R2
activates muting.
TP
TP
TP
Muting active
TP = 300ms is the response time of the control unit on switching of the muting signals.
Delay time introduced by the unit to filter switching bounce-back.
T3 is the moment of occupation of sensor 3. Interception may take place when the
muting function is active or after de-activation of this.
TP
Muting cycle (2 sensors)
Occupied
Free
Sensor 3
TP
T3
Muting cycle (3 sensors)
FF-SLM Series
• Industrial Safety Products •
279
LED indicators
LED N°
Colour
State
Indications
SLM200R2
1
Green
On
Barrier free
GUARD
SLM200R2 output relays energised
Barrier free
2
3
Yellow
Red
On
On
CLEAR
BREAK
SLM200R2 output relays de-energised
Barrier occupied
SLM200R2 output relays de-energised
Failure of the external relays K1 and K2,
SLM200R2 output relays de-energised
Muting function, Sensor 1 occupied
Muting function, Sensor 2 occupied
Muting function, Sensor 3 occupied
Incorrect muting sequence
3
4
5
6
7
3
8
1
Red
Red
Alternately
FAIL
flickering
(FAIL K1-K2)
Yellow
Yellow
Yellow
Red
On
On
On
Flickering
On
FAIL MUTING
MUTING
Red
SLM200R2 output relays de-energised
Muting function active
Green
On
External indicator
On
SLM200R2 output relays energised
2
1
7
3
4
5
6
8
280
• Industrial Safety Products •
FF-SLM Series
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