< 3. INSTALLATION, PIPING AND WIRING >
3-35
IM 12A0V2-E
C2
C1
C2
C1
G
ME
RE
T2
T1
G
ME
RE
T2
T1
-
+
F2
L2
L1
F1
M2
M1
Output
signal
Power
Ground
Customer
wiring
*2
*3
*1
*1
*2
MAINT
FAIL
G
G
POWER
OUTPUT
*1: Be sure to ground the case ground terminal, or if this is not possible then connect to G of power wiring.
Avoid two-point ground. (Case is connected to signal ground inside converter).
*2: Use cable with 9 to 12 mm OD.
*3: Use two-core shielded cable with 9 to 12 mm OD. To avoid two-point ground, connect shield to ground
at one end only.
Free available
chlorine converter
(FC400G)
Free available
chlorine detector
(FC400G)
Solenoid
valve (SV1)
W1
W2
Option
for "/AZC" (with auto zero calibration)
Figure 3.33 Wiring Diagram of ST401G-FC4-N-A(/AZC)
AR2x2
-
+
S
-
+
G
L1
G
L2
L2
L1
G
CB1
AR1
AR1,2 : arresters
CB1: Circuit breaker
1
2
G
L1
L2
G
G
C2
C1
C2
Dedicated cable
C1
G
ME
RE
T2
T1
G
ME
Free available
chlorine detector
(FC400G)
RE
T2
T1
-
+
F2
Free available
chlorine converter
(FC400G)
L1
L2
F1
M2
M1
Analog output
Output
Terminal box
Power
MAINT
FAIL
POWER
OUTPUT
Ground
(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.
Avoid two-point ground.
* Ground the G terminal of power wiring.
W1
W2
Solenoid
valve (SV1)
Option
for "/AZC" (with auto zero calibration)
Figure 3.34 Wiring Diagram of ST401G-FC4-N-A/ARS(/AZC)
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