Omron CQM1 User Manual

254
Application Section 2-6
Current Detectors
(E54-CT1/CT3)
Output Interface
Output Characteristics
Built-in Short-circuit
Protection Circuit
When the short-circuit protection circuit operates, turn OFF the output or the
output power supply, or release the short circuit.
Output Circuits
• The +DC terminals for NPN outputs are internally connected.
• The 0V terminals for NPN outputs are internally connected.
• Heater burnout alarm outputs (HB1 and HB2) are latched outputs, i.e.,
they will not reset by themselves.
2-6 Application
The Unit will be in Auto Mode in STOP status when the power supply is turned
ON. An operation control command must be executed to start actual opera-
tion. Refer to 2-6-2 Using Operation Control Commands for details on the
commands.
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
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%
(exclud-
ing load current)
TC ( 01/TC ( 03 TC ( 02/TC ( 04

Omron CQM1 Specifications

General

Model	CQM1
I/O Capacity	Up to 256 I/O points
Programming Language	Ladder Logic
Timer/Counter	128 timers/counters
Operating Temperature	0 to 55°C
Humidity	10 to 90% RH (non-condensing)
Power Supply	24 VDC or 100-240 VAC
Communication Ports	RS-232C
Memory Capacity	3.2K words
Instruction Set	Basic and advanced instructions
Memory	RAM (battery-backed)
Program Memory	3.2K words
Storage Temperature	-20 to 75°C