PRU-81-V [MSYSTEM]
Plug-in Signal Conditioners M-UNIT;型号: | PRU-81-V |
厂家: | M-SYSTEM |
描述: | Plug-in Signal Conditioners M-UNIT |
文件: | 总4页 (文件大小:127K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MODEL: PRU
Plug-in Signal Conditioners M-UNIT
[3] POWER INPUT
AC Power
B: 100 V AC
C: 110 V AC
D: 115 V AC
F: 120 V AC
G: 200 V AC
H: 220 V AC
J: 240 V AC
PULSE SCALER
(field-configurable)
Functions & Features
• Converting pulse rate into convenient engineering unit for
display on a totalizing counter or meter
• Excitation
• Digital scaling accuracy
DC Power
• Scaling factor adjustable of 0.9999 × 10
0
to 0.0001 × 10–6
S: 12 V DC
• High-density mounting
R: 24 V DC
V: 48 V DC
Typical Applications
• Positive displacement flowmeters and turbine flowmeters
• Magnetic tachometers
[4] OPTIONS
blank: none
/Q: With options (specify the specification)
50
(1.97)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
80
(3.15)
/C02: Polyurethane coating
/C03: Rubber coating
127
(5)
TERMINAL SCREW MATERIAL
/S01: Stainless steel
mm (inch)
CAUTION
MODEL: PRU–[1][2]–[3][4]
1) This unit's output waveform is not uniform due to its
scaling method. The user must be aware that it may be
inconvenient for certain types of application.
2) This unit is designed to accept at the maximum of 100
kHz, which may cause errors due to chattering in the input
pulses.
ORDERING INFORMATION
• Code number: PRU-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. PRU-11-B/Q)
Use input relays which do not cause chattering (e.g.
mercury relays). Other relays could be used only with a CR
filter, for 10 Hz at maximum.
• Input frequency range (e.g. 0 – 356.7 Hz)
• Output frequency range (e.g. 0 – 1.00 Hz)
• Specify the specification for option code /Q
(e.g. /C01/S01)
3) Use M-System’s Model M2PRU instead of this unit in
conjunction with the pulse output from M-System’s power
transducers.
[1] INPUT
R
1: Dry contact (Excitation 12 V @30 mA)
2: DISCONTINUED, replaced with code 8
Voltage pulse; square wave (Exitation 12 V @30 mA)
7: Sine wave (Excitation 12 V @30 mA)
8: Voltage pulse; square wave (Excitation 12 V @30 mA)
C = 1 µF
R = 10kΩ
PULSE
SCALER
Relay
C
GENERAL SPECIFICATIONS
Construction: Plug-in
[2] OUTPUT
1: Open collector (max. frequency 20 kHz)
2: 5 V pulse (max. frequency 20 kHz)
3: Relay contact (max. frequency 2 Hz)
4: 24 V pulse (max. frequency 20 Hz)
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless
steel
PRU SPECIFICATIONS
ES-1375 Rev.15 Page 1/4
http://www.m-system.co.jp/
MODEL: PRU
•Sine Waveform
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
25mV – 50V
0V
Input pulse sensing: Capacitor coupled; detecting pulse rise
Sensitivity adjustment: For voltage pulse input, sine wave
input, adjustable between 25 mVp-p – 5 Vp-p (front)
25mV p-p
– 50V p-p
Scaling factor adjustment: 0.9999 × 10
0
– 0.0001 × 10–6
0V
(front 10-position rotary switch)
Output pulse width adjustment: (front)
• Open collector, 5 V pulse: 40 μsec. - 0.8 msec.
• Relay contact, 24 V pulse: 40 msec. - 0.8 sec.
OUTPUT SPECIFICATIONS
■ Open Collector: 50 V DC @ 50 mA (resistive load)
Frequency range: 0 – 20 kHz
ON pulse width: 40 μsec. – 0.8 msec. adjustable
Saturation voltage: 0.6 V DC
INPUT SPECIFICATIONS
Excitation: 12 V DC @30 mA; shortcircuit protection
■ Dry Contact: Mechanical contact or open collector
Max. frequency: 100 kHz
■ Relay Contact: 120 V AC @ 200 mA (cos ø = 1)
240 V AC @ 100 mA (cos ø = 1)
24 V DC @ 200 mA (resistive load)
Frequency range: 0 – 2 Hz
Pulse width time requirement: 5 μsec. min. (20 msec. min.
for frequencies ≤ 10 Hz)
ON pulse width: 40 msec. – 0.8 sec. adjustable
Relay life:
Sensing: Approx. 7.5 V DC @ 1 mA
ON/OFF level: ≤ 20 kΩ for ON, ≥ 100 kΩ for OFF
■ Voltage Pulse: Square or similar waveform
Max. frequency: 100 kHz
≥ 5 × 10
7
cycles (mechanical)
≥ 10 cycles (electrical)
5
■ 5 V Pulse
Pulse width time requirement: 5 μsec. min. (20 msec. min.
for frequencies ≤ 10 Hz)
Frequency range: 0 – 20 kHz
Low pulse width: 40 μsec. – 0.8 msec. adjustable
Hi/Lo level: 5 V ± 10 % for Hi; ≤ 0.5 V for Lo
Load resistance: 600 Ω min.
Input amplitude: 25 mVp-p – 50 Vp-p
Minimum amplitude requirement:
[Pulse With (Fequency): Amplitude]
≥ 250 μsec. (0 – 2 kHz): 25 mVp-p
≥ 25 μsec. (0 – 20 kHz): 50 mVp-p
≥ 12.5 μsec. (0 – 40 kHz): 1 Vp-p
≥ 5 μsec. 0 – (100 kHz): 5 Vp-p
■ 24 V Pulse
Frequency range: 0 – 20 Hz
High pulse width: 40 msec. – 0.8 sec. adjustable
Hi/Lo level: 24 V ± 10 % for Hi; ≤ 0.5 V for Lo
Load current: 30 mA max.
Input impedance: ≥ 50 kΩ
Load resistance: 800 Ω min.
■ Sine wave: Sine or similar waveform
Frequency: 10 Hz - 100 kHz
Pulse width time requirement: 5 μsec. min. (20 msec. min.
for frequencies ≤ 10 Hz)
INSTALLATION
Power input
Input amplitude: 25 mVp-p – 50 Vp-p
(within 10 Hz - 100 kHz)
• AC: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 2 VA
Minimum amplitude requirement: (Frequency: Amplitude)
0 – 2 kHz: 25 mVp-p
•DC: Operational voltage range: rating ±10 %,
ripple 10 %p-p max., approx. 2 W (80 mA at 24 V)
Operating temperature: -5 to +60°C (23 to 140°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
0 – 20 kHz: 50 mVp-p
0 – 40 kHz: 1 Vp-p
0 – 100 kHz: 5 Vp-p
Input impedance: ≥ 50 kΩ
Weight: 350 g (0.77 lb)
Waveform examples
•Square Waveform
TH
PERFORMANCE
VH
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute (input to output
to power to ground)
25mV p-p
– 50Vp-p
VL
TL
Pulse width is smaller of TH or TL.
PRU SPECIFICATIONS
ES-1375 Rev.15 Page 2/4
http://www.m-system.co.jp/
MODEL: PRU
EXTERNAL VIEW
Sensitivity Adj.
10– 1
10– 2
Pulse
Rate
10– 3
10– 4
10– n
Pulse Width Adj.
Front Cover (open)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)
CLAMP
(top & bottom)
7.8 (.31)
DIN RAIL
35mm wide
6
5
4
3
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
7
8
1
2
8–M3.5
SCREW
50 (1.97)
107 (4.21)
127 (5)
40 (1.57)
50 (1.97)
[3.3 (.13)]
• When mounting, no extra space is needed between units.
PRU SPECIFICATIONS
ES-1375 Rev.15 Page 3/4
http://www.m-system.co.jp/
MODEL: PRU
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
SENSITIVITY
ADJ.
SCALING
FACTOR ADJ.
PULSE
WIDTH ADJ.
Isolation
Pulse Volt.
Amplifier
Output
Driver
+
–
3
4
5
6
1
2
7
8
+
–
Scaler
One-shot
INPUT
OUTPUT
SENSOR EXCITATION
+
12V Supply
U(+)
V(–)
POWER
Base Socket
Input Connection Examples
Output Connection Examples
Relay or
Counter
Coil
■ Dry Contact
■ Open Collector
■ Relay Contact
• AC Powered
Relay or
Counter
Coil
+7.5V
• DC Powered
7.5kΩ
Varistor or
Spark
Quenching
Circuit
+
–
1
2
+
–
1
2
1
2
Spark
Quenching
Diode
+
–
–
+
+
–
+
3
4
5
LOAD
LOAD
+12V
PWR
U
■ Voltage Pulse
■ Voltage Pulse, Sine Wave
1
2
+
–
+
–
+
–
–
+
+
–
+
3
4
5
+12V
PWR
Specifications are subject to change without notice.
PRU SPECIFICATIONS
ES-1375 Rev.15 Page 4/4
http://www.m-system.co.jp/
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