Allen-Bradley CENTERLINE, Instruction Manual

Page: 34 / 88

Publication 2100-IN012B-EN-P - April 2005
3-4 Final Checklist Before Energizing
D. Check the integrity of all field connections. Recommended torque
values not found on individual devices can be found on the unit
wiring diagrams.
E. Check field wired connections made to the MCC for agreement with
wiring diagrams and verify that proper spacings between adjacent
phases and/or phases to ground are being used. Refer to Table 3.A
and Table 3.B on page 3-6 and 3-7 for the minimum electrical
spacing requirements.
7. Check to ensure the voltage and horsepower ratings on the motor
correspond with the MCC unit ratings.
8. Check to ensure the overload relays or heater elements are selected,
installed and/or adjusted to relative full load current shown on the
motor rating nameplate.
9. For applications requiring power fuses, install the fuses in the fusible
switches in accordance with the NEC application requirements. Refer to
publication 2100-TD003
x -EN-P for fuse information. Do Not Apply
Grease or NO-OX-ID to Fuse Ferrules. All fuses must be completely
inserted in the fuse clips. Recommended torque values for fuse clamp
screws can be found on the unit wiring diagram. Verify that all fuses fit
each application.
10. For circuit breaker applications, verify that the circuit breakers are in
accordance with NEC application requirements, and have correct
ampacity and trip settings. Refer to publication 2100-TD001
x -EN-P
and 2100-TD002 x -EN-P for circuit breaker information in MCC units.
NOTE: High efficiency motors may have higher locked rotor and inrush
currents, therefore, higher magnetic trip settings than those required equivalent
standard motors may be required.
11. Component devices in MCC units such as: transfer switches, PFCCs,
transducers, motor protectors, line monitors, over and under-voltage
relays, motor windings heaters, may require unique start-up procedures.
Refer to the device instruction sheets or manuals supplied with the
MCC for specific start-up guidance. Set and verify adjustable current,
voltage and other settings, according to device instructions or wiring
diagrams.
Allen-Bradley AC drives and soft starter units are shipped with preset
factory settings such as ramp speed, current limits, switch positions,
readouts, etc. Preset factory settings may not be suitable for many
applications. Refer to instruction manuals, supplied with the MCC for
specific startup guidance.