Omron EJ1 User Manual page 42

Wiring Terminals
Auxiliary Outputs
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
A8
B9
A9
HFU
1
2
3
4
5
6
7
8
9
EDU
CT Inputs
Auxiliary outputs are sent from pins B1 to B6 with the HFU, and from pins 3 to
5 with the EDU.
B1
SUB4
B2
SUB3
B3
COM
B4
SUB2
B5
SUB1
B6
COM
HFU
Output type
Transistor Max. operating voltage: 30 VDC
outputs
Max. load current:
Residual voltage:
When the heater burnout (HB), heater overcurrent (OC), or heater short (HS)
alarm is to be used, connect a Current Transformer (CT) across terminals A8
and A9 or terminals A7 and A9 (no polarity) on the TC2.
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
A8
B9
A9
TC2
• Use a E54-CT1 or E54-CT3 Current Transformer.
3
SU B2
4
SUB1
5
COM
EDU
Specifications
50 mA
1.5 V max., leakage current: 0.4 mA max.
A7
CT2
A8
CT1
A9
Section 2-2
21