21
Wiring Terminals
Section 2-2
Auxiliary Outputs
Auxiliary outputs are sent from pins B1 to B6 with the HFU, and from pins 3 to
5 with the EDU.
CT Inputs
When the heater burnout (HB) or heater short (HS) alarm is to be used, con-
nect a Current Transformer (CT) across terminals A8 and A9 or terminals A7
and A9 (no polarity) on the TC2.
• Use a E54-CT1 or E54-CT3 Current Transformer.
B1
B2
B3
SUB3
SUB4
B4
B5
B6
SUB1
SUB2
3
4
5
SUB1
SUB2
B1
B2
B3
B4
B5
B6
B7
B8
B9
A1
A2
A3
A4
A5
A6
A7
A8
A9
HFU
1
2
3
4
5
6
7
8
9
EDU
HFU
COM
COM
COM
EDU
Output type
Specifications
Transistor
outputs
Max. operating voltage: 30 VDC
Max. load current:
50 mA
Residual voltage:
1.5 V max., leakage current: 0.4 mA max.
A7
A8
A9
CT1
CT2
B1
B2
B3
B4
B5
B6
B7
B8
B9
A1
A2
A3
A4
A5
A6
A7
A8
A9
TC2
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......