4 wiring power to the drive – Rockwell Automation SP120 ACDrive 115VAC, 1Ph, 230VAC, 1Ph/3Ph, 1/4-5.0HP User Manual

Page 17

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Installing and Wiring the Drive

2-3

English

2.4

Wiring Power to the Drive

!

ATTENTION: Ensure that the input voltage corresponds to the voltage
indicated on the product nameplate. Failure to observe this precaution
could result in severe bodily injury or loss of life.

ATTENTION: In normal operation apply the START/STOP commands
via the control terminals or the control panel and not by disconnecting
and reapplying input power to the drive or motor contactor. If it is
necessary to use this method for starting and stopping, or if frequent
cycling of power is unavoidable, make certain it does not occur more
than once every five minutes. Do not install any capacitors or suppressors
to the drive output terminals. Failure to observe this precaution could
result in damege to equipment.

ATTENTION: Exercise particular caution if automatic restart is activated.
To prevent injuries caused by automatic restarting of the drive following
a power failure, install a switching component at the input that is
deactivated in the event of a power failure and that may only be manually
switched on again on return of the power supply (e.g., contactor, etc.).
Failure to observe this precaution could result in severe bodily injury or
loss of life.

ATTENTION: If the distribution system capacity exceeds the drive’s
maximum symmetrical fault short-circuit current of 5,000 amps,
additional impedance must be added to the AC line supplying the drive
to limit available current in the event of a fault. Failure to observe this
precaution could result in damage to the equipment.

Figure 2.3 – Power Wiring Block Diagram

3
Phase
Motor

U/T1

V/T2

W/T3

L1

L2

N/L3

Disconnect
Device

Input power supply

_

+

+1

SP120
AC Drive

Fuses

Optional
Filter

DC Bus

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