Shinko FCD-13A - Page 21

21
External operation input [Available only when External setting (EA, EV) option is added]
(Fig. 5.2-3)
Manual control : Close terminals 26 and 27.
Automatic control : Open terminals 26 and 27.
Remote setting : Close terminals 25 and 27.
Or open terminals 25 and 27, then select “Remote setting” using the
keypad.
Local setting : Open terminals 25 and 27 and select “Local setting” using the keypad.
25-27 Closed: Always Remote setting (Keypad operation is invalid.)
Current transformer 1, 2 (CT1, CT2) input (Option code: W, W3)
(1) This alarm is not available for detecting current under phase control.
(2) Use the current transformer (CT) provided, and pass one lead wire of the heater
circuit into the hole of the CT.
(3) When wiring, keep the CT wire away from AC sources and load wires to avoid the
external interference.
[Single-phase heater]
CT1
Power source
Heater
(Fig. 5.2-4)
[3-phase heater]
(Fig. 5.2-5)
34
35
36
37
3-phase heater
CT1
CT2
R
S
T
Power
source
R/L
A/M
COM