Omron CQM1H - 08-2005, Operation Manual

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244
Units for Platinum Resistance Thermometers
Loop 2
Loop 4
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
CQM1-TC301
(4 loops, NPN
outputs) CQM1-TC302
(4 loops, PNP
outputs) CQM1-TC303
(2 loops, heater burnout
alarm NPN outputs) CQM1-TC304
(2 loops, heater burnout
alarm PNP outputs)
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
Loop 2
Loop 4
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Loop 2
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Loop 2
•
The +DC terminals for NPN outputs are internally connected.
•
The 0V terminals for NPN outputs are internally connected.
Use M3 crimp connectors and tighten terminal screws to a torque of 0.3 to
0.5 N
m
6.2 mm max. 6.2 mm max.
Control output
Heater
AC power
Connect to CT input
terminals on the
Temperature Control
Unit (no polarity).
Heater wire
Current Detector
(E54-CT1/CT3)
CT
Output Interface
Maximum switching capability 100 mA, 24 VDC
+10%
/
–15%
Leakage current 0.1 mA max.
Residual voltage 0.8 V max.
External supply voltage 30 mA min., 24 VDC
+10%
/
–15%
(excluding load current)
When the short-circuit protection circuit operates, turn OFF the output or the out-
put power supply, or release the short circuit.
Crimp Terminals
Current Detectors
(E54-CT1/CT3)
Output Characteristics
Built-in Short-circuit
Protection Circuit
Wiring
Section 2-5