E5
j
K-T
E5
j
K-T
26
CT Input/Potentiometer
When using the HBA function on the E5EK-AA2 Controller, connect CT input (CT) to terminal numbers 15 to 17. When monitoring the valve
opening on the E5EK-TPRR2 Controller, connect the potentiometer (PTMR) to terminal numbers 15 to 17. Connect each of these inputs as
follows:
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
21 22
23
17
16
15
17
16
15
O
W
C
CT input
Potentiometer
For details on CT inputs, refer to
Appendix, About Current T
ransformer in the E5AK-T/E5EK-T/E5CK-T User’s Manual (H88/H89/H90). For
details on the potentiometer, refer to the
Instruction Manual for the valve connected to the Controller. The variable resistance range is 100
Ω
to
2.5 k
Ω
.
Event Input
Connect event inputs 1 and 2 (EV1/2) to terminal numbers 18 to 20. However, note that terminal numbers 18 to 20 cannot be used on Control-
lers with a communications function. Connect the event inputs as follows:
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
21 22
23
20
19
18
Event input 1 and 2
EV1
EV2
COM
+
+
–
Use event inputs under the following conditions:
Contact input
ON: 1 k
Ω
max., OFF: 100 k
Ω
min.
No-contact input
ON: Residual voltage 1.5 V max.,
OFF: Leakage current 0.1 mA max.
Polarities during no-contact input are as follows:
20
19
18
Event input 1 and 2
EV1
EV2
COM
+
+
–
Transfer Output
Connect transfer output (TRSF) to terminal numbers 21 and 22. The internal equalizing circuit for transfer output is as follows:
21
22
4 to 20mA
L
+
–