Rockwell Automation 7000 PowerFlex Medium Voltage Air-Cooled (B Frame) Installation - ForGe Control User Manual
Page 68
68
Rockwell Automation Publication 7000-IN007E-EN-P - June 2014
Chapter 4
Pre-Commissioning Responsibilities
Table 8 - Control Wiring:
Table 9 - Power Wiring:
If the drive has an isolation transformer, the transformer
enclosure and/or frame must be bonded to system ground
at a minimum of
two locations.
If the drive has an isolation transformer, the wye
secondary neutral point must not be grounded.
If shipping splits exist in the line-up, the ground bus
between cabinets has been installed.
Based on your local regulation, an ARC Flash study has
been completed.
Initials
Date
Check
All low voltage wiring entering the drive is labeled,
appropriate wiring diagrams are available, and all
customer interconnections are complete.
If an encoder is used, the encoder must be isolated from
the motor frame. The encoder cables should be routed in
grounded steel conduit for electrical noise suppression,
and the conduit must be grounded at junction box but left
isolated from the encoder with an insulated bushing.
The encoder cable shield to the drive is connected to the
ground bus at the drive end only.
All AC and DC circuits are run in separate conduits.
All wire sizes used are selected by observing all applicable
safety and CEC / NEC / IEC regulations.
Remote I/O Interface is properly configured / active.
All 3-phase control wiring is within specified levels and
has been verified for proper rotation, UVW.
All single-phase control wiring is within specified levels
and has grounded neutrals.
Initials
Date
Check
The power cable connections to the drive, motor and
isolation transformer adhere to CEC, NEC, IEC or
appropriate local standards.
The cable terminations, if stress cones are used, adhere to
the appropriate standards.
Appropriate cable insulation levels are adhered to, as per
Rockwell Automation specifications (refer to
).
All shields for shielded cables must be grounded at the
source end only.
If shielded cables are spliced, the shield must remain
continuous and insulated from ground.
All wire sizes used are selected by observing all applicable
safety and CEC / NEC / IEC regulations.
Initials
Date
Check