61F-G
@
11
■
Connection with Three-phase Four-line Circuit
When supplying power from N-phase to the Controller in three-phase four-line circuit, refer to the following diagrams.
Line voltage (R-S, S-T, or R-T):
380 or 415 VAC
Phase voltage (N-R, N-S, or N-T): 220 or 240 VAC
61F-G
@
, 220 or 240 VAC
Water Supply
Note:
Be sure to ground terminal E3.
61F-11
Relay Unit
Power source
380 or 415 VAC
R S T N *
M
Water tank
Stop
Start
E
2
E
3
E
1
P
Ta
Electromagnetic switch
Transformer
Rated voltage:
S0-S2: 220 or 240 VAC
Tc
Tb
E
2
E
1
S
0
S
1
S
2
S
3
U
24 V
8 V
A
*
Water supply source
