2.4 Wiring Power to the Drive
Input power supply
Disconnect
Device
Installing and Wiring 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.
Optional
Filter
Fuses
L1
L2
N/L3
Figure 2.3 – Power Wiring Block Diagram
U/T1
V/T2
W/T3
SP120
AC Drive
_
+
+1
English
3
Phase
Motor
DC Bus
2-3