Installation/Wiring
1-5
RFI Filter Grounding
Using an optional RFI filter may result in relatively high ground leakage
currents. Therefore, the
filter must only be used in installations with
grounded AC supply systems and be permanently installed and
solidly grounded
(bonded) to the building power distribution ground.
Ensure that the incoming supply neutral is solidly connected (bonded) to
the same building power distribution ground. Grounding must not rely
on flexible cables and should not include any form of plug or socket that
would permit inadvertent disconnection. Some local codes may require
redundant ground connections. The integrity of all connections should be
periodically checked. Refer to the instructions supplied with the filter
.
The PowerFlex 70 can be installed with either input fuses or an input
circuit breaker. National and local industrial safety regulations and/or
electrical codes may determine additional requirements for these
installations. Refer to
for recommended fuses/circuit
breakers.
Cable Types Acceptable for 200-600 Volt Installations
A variety of cable types are acceptable for drive installations. For many
installations, unshielded cable is adequate, provided it can be separated
from sensitive circuits. As an approximate guide, allow a spacing of 0.3
meters (1 foot) for every 10 meters (32.8 feet) of length. In all cases,
long parallel runs must be avoided. Do not use cable with an insulation
thickness less than 15 mils (0.4 mm/0.015 in.). Use copper wire only.
Wire gauge requirements and recommendations are based on 75 degree
C. Do not reduce wire gauge when using higher temperature wire.
Fuses and Circuit Breakers
!
ATTENTION:
The PowerFlex 70 does not provide branch short
circuit protection. Specifications for the recommended fuse or circuit
breaker to provide protection against short circuits are provided in
.
Power Wiring
!
ATTENTION:
National Codes and standards (NEC, VDE, BSI etc.)
and local codes outline provisions for safely installing electrical
equipment. Installation must comply with specifications regarding wire
types, conductor sizes, branch circuit protection and disconnect
devices. Failure to do so may result in personal injury and/or equipment
damage.
Содержание PowerFlex 70
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