Rockwell Automation VSM500 Integrated Drive/Motor - Manual (Page 25)

Step 5 - Wire AC Power to the Unit and Ground the Unit 5-1
C
HAPTER
5
Step 5 - Wire AC Power to the Unit and
Ground the Unit
Observe the following guidelines when wiring AC power:
• The terminal block accepts up to 3.31 mm
2
(12 AWG) wire.
• The recommended tightening torque is 1.3 Nm (12 in-lb).
• Verify that the input power to the unit corresponds to the unit voltage and frequency
and that the input supply is of sufficient capacity to support the input current
requirements. Refer to appendix A, Technical Specifications.
• Size the AC line conductors for the unit rating and in accordance with all applicable
local, national, and international codes.
!
ATTENTION: If the distribution system capacity exceeds the unit’s
maximum symmetrical fault short-circuit current of 10,000 amps,
additional impedance should be added to the AC line supplying the unit
to limit available current in the event of a fault. Failure to observe this
precaution could result in severe bodily injury or loss of life.
ATTENTION: The unit is intended to be commanded by control input
signals that will start and stop the motor. A device that routinely
disconnects then reapplies input power to the unit for the purpose of
starting and stopping the motor should not be used. If it is necessary to
use this method for starting and stopping, or if frequent cycling of power
is unavoidable, make sure that it does not occur more than once a minute.
Failure to observe this precaution could result in damage to equipment.