3-2
SP600 AC Drive User Manual
3.1
General Requirements for the
Installation Site
It is important to properly plan before installing a SP600 AC drive to
ensure that the drive’s environment and operating conditions are
satisfactory. Note that no devices are to be mounted behind the
drive. If air-cooled devices are mounted near the drive, the hot air
exhaust may raise the ambient temperature level above what is
allowed for safe operation of the drive.
The area behind the drive must be kept clear of all control and
power wiring. Power connections may create electromagnetic fields
which may interfere with control wiring or components when run in
close proximity to the drive. Read the recommendations in the
following sections before continuing with drive installation.
3.1.1 Verifying Power Module AC Input Ratings
Match Available Power
SP600 drives are suitable for use on a circuit capable of delivering
up to a maximum of 200,000 rms symmetrical amperes, and a
maximum of 600 volts (nominal).
3.1.1.1 Unbalanced or Ungrounded Distribution Systems
For ungrounded distribution systems, disconnect the MOVs and
common mode capacitors by removing or disconnecting the
jumper(s) shown in figure 3.1.
!
ATTENTION:
To guard against personal injury and/or
equipment damage caused by improper fusing or circuit
breaker selection, use only the recommended line fuses/circuit
breakers specified in section 4.4.
!
ATTENTION:
SP600 drives contain protective MOVs and
common mode capacitors that are referenced to ground. To
guard against drive damage, these devices should be
disconnected if the drive is installed on an ungrounded
distribution system where the line-to-ground voltages on any
phase could exceed 125% of the nominal line-to-line voltage.
Failure to observe this precaution could result in damage to,
or destruction of, the equipment.
ATTENTION:
To avoid electric shock hazard, verify that the
voltage on the bus capacitors has discharged before removing/
installing jumpers. Measure the DC bus voltage at the +DC
terminal of the Power Terminal Block and the -DC test point.
The voltage must be zero.
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