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6. WIRING
Wlrlng
When wiring the inverter, pay attention to the following points so as to avoid miswiring or misuse.
-
Wiring
(1) Do not connect power supply to the output terminals (u,v,w), because such miswiring causes dam-
aae to the inverter.
(2) Connect nothing across terminals P and PR
except
the discharging resistor for increased braking
(option). Never short-circuit these terminals.
(3) Use sleeved, shoulderless terminals for the terminals for power supply and motor.
(4) Common terminals
SD,
5, and SE on the control circuit terminal block are insulated from each
other. Do not ground these termlnals.
(5) Use shielded or twisted cables for wires connecting the control circuit terminals, and keep suffi-
cient distance from the main or high voltage circuits (e.g.,
200 V
relay sequence circuit).
(6) When wiring, temporarily cover the vents on top of the inverter, to prevent pieces of wire from en-
tering the inverter.
(7)
When doing work such as rearrangement of wiring after operating the inverter, make sure that the
power indicator lamp is extinguished and at least two minutes has elapsed before working on the
inverter.
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17-
h
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