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4. WIRING
4.1 NOTES ON WIRING TO PERIPHERAL UNITS
• MCCB (molded case circuit breaker)
Please refer to Table 3. for MCCB selection.
Do not use a circuit breaker for start/stop operation.
When a ground fault interrupter is used, select one
unaffected by 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 LINE REACTOR
To improve power factor or to reduce surge, install an AC
line reactor. There is a DC choke built-in on PA7300, models
30HP (22KW), 230 VAC, 40HP (30 KW), 460VAC 30HP (22KW),
600VAC and larger. The 460V 350 ~ 500HP need to install AC
reactor externally.
• Input Noise Filter
When used with the specified input noise filter, the PA7300
can comply with EN55011 class A. Please refer to section 9.2
and the EMC technical manual for noise filter selection.
• AC Drive
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. See section 9.2.2.
• Motor
When multiple motors are driven in parallel with an
AC Drive, the AC Drive rated current should be at least 1.1
times the total motor rated current. Make sure that the
motor and the AC Drives are separately grounded.
4-1
PA 7300
PART I: INSTALLATION MANUAL
Содержание PA7300 Series
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