< 3. INSTALLATION, PIPING AND WIRING >
3-36
IM 12A0V2-E
VV
2
L2
L1
G
1
AR1
CB1
G
L1
L2
G
G
+
-
+
-
AR2x2
SP1
+-
7
NL
R2
R1
O2
O1
R2
R1
S
4
COM
-
RL1
12
5
+
Terminal box
Terminal box
R2
R1
W2
-
+
Free available
chlorine converter
W1
L2
L1
T1
T2
RE
Free available
chlorine detector
ME
G
T1
T2
RE
ME
G
C1
Dedicated cable
C2
C1
C2
G
G
OUTPUT
POWER
FC400G FC400G
Solenoid
valve (SV1)
Option
for "/AZC" (with auto zero calibration)
M1
M2
F1
F2
(Customer
wiring)
MAINT
FAIL
Power
Ground
Remote range switching input
Range switching output
Analog output
(Note) * Dotted wiring is external wiring and should be prepared
by customer.
* Use two-core shielded cable with 9 to 12 mm OD for
output wiring.
* Remote range switching
Voltage when contact input opened: 5 V DC
Current when contact input closed: 20μA
Avoid two-point ground.
* Ground the G terminal of power wiring.
FC400G(Output signal)
FC400G(Range swiching input)
External wiring
(Analog output)
External wiring
(Remote range switching output)
FC400G(Power)
External wiring
(Power)
External wiring
(Remote range switching input)
AR1,2 : arresters
CB1: Circuit breaker
External wiring should be prepared by customer.
Figure 3.35 Wiring Diagram of ST401G-FC4-N-A/RR(/AZC)
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