• All fuses and circuit breakers must have the proper rating, and comply with
local regulations.
• The cables must be in accordance with the local rules and regulations.
• If the power cable is jerked loose, then the ground (earth) conductor must
be the last conductor to come loose from its terminal. Make sure that the
ground (earth) conductor is longer than the phase conductors at both ends
of the cable.
Cables
These requirements apply for cable installation:
• The cables must be in good condition, not have any sharp bends, and not be
pinched.
• The sheathing must not be damaged and must not have indentations or be
embossed (with markings, etc.) at the cable entry.
• The minimum bending radius must not be below the accepted value.
• Use cables with appropriate temperature rating.
7.1 Connect a 3–phase pump motor to the internal contactor
P2 SENSOR
L1
AC~
L2 L3
PE
DO 1
NO COM NO COM
DO 3
NO COM NC
+
24V OUT
T1 T2
P1 SENSOR
T1 T2 +
DI 1
+
MUTE
H
P2 H/O/A
O
RS485
+ IN
AI 1
STOP
FLO AT SWITCHES
STBY
+
ALARM 24V
H
P1 H/O/A
O
HIGH
1
2
3 4
HMI
5
DO 2
RS232
N
USB
A B GND
DUTY
L1 L2 L3
P1 RUN
L1 L2 L3
P2 RUN
WS009299A
Connect the pump cables to the terminals and to protective earth.
For pumps rated higher than 12A, an external contactor must be used.
7 Electrical Installation
Flygt FGC 400 Installation, Operation, and Maintenance 19
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