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1. WIRING
1.1 NOTES ON WIRING TO PERIPHERAL UNITS
MCCB (molded case circuit breaker)
Please refer to Table 1. for MCCB selection.
Do not use a circuit breaker for start/stop operation.
When a ground fault interrupter is used, select the one
with no influence for high frequency. Setting current
should be 200mA or above and the operating time at
0.1 second or longer to prevent malfunction.
MC (magnetic contactor)
It is not always necessary to have the MC on the input
side. However, an input MC can be used to prevent an
automatic restart after recovery from an external
power loss during remote control operation.
Do not use the MC for start/stop operation.
AC REACTOR
To improve power factor or to reduce surge, install an
AC reactor. There is a DC choke built-in on
7200GS/GS510, models 25HP(18.5 KW) and larger
for 220V class and 30HP(22 KW) and larger for 440V
class. The 440V 300 ~ 400HP need to install AC
reactor externally.
Input Noise Filter
When used with specified input noise filter, the
7200GS/GS510 can comply with EN55011 class A.
Please refer to our EMC technical manual for noise
filter selection.
Inverter
Wire input to terminals L1, L2 and L3 for three phase
input. Make sure to connect the ground terminal to an
appropriate safety ground.
Output Noise Filter (EMI Suppression zero core)
When used with output noise filter, radiated and
conducted emissions may be reduced.
Motor
When multiple motors are driven in parallel with an
inverter, the inverter rated current should be at least
1.1 times the total motor rated current. Make sure that
the motor and the inverters are separately grounded.
Power Supply
MCCB
MC
AC REACTOR
INPUT NOISE FILTER
7200GS/GS510
OUTPUT NOISE FILTER
3Φ AC
INDUCTION MOTOR
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