Specifications

24
10.0 POWER WIRING
Note drive input and output current ratings and check applicable electrical codes for required
wire type and size, grounding requirements, overcurrent protection, and incoming power
disconnect, before wiring the drive. Size conservatively to minimize voltage drop.
Input fusing and a power disconnect switch or contactor MUST be wired in series with
terminals L1, L2, and L3 (L1 and L2 if input is single phase). If one has not been supplied
by Minarik Corporation, a disconnect means must be wired during installation. This
disconnect must be used to power down the drive when servicing, or when the drive is not to
be operated for a long period of time, but should not be used to start and stop the motor.
Repetitive cycling of a disconnect or input contactor (more than once every two minutes)
may cause damage to the drive.
10.1 WIRING FOR SINGLE PHASE OR THREE PHASE INPUT
If the drive is nameplated for 240/120 Vac single phase input, wire the input to terminals L1
and N and jumper terminals L1 to L2 for 120 Vac input voltage, or wire to terminals L1 and
L2 (do not wire to N) for 240 Vac input voltage. Refer to
Section 11.0 (AC400 POWER WIRING DIAGRAM).
If the drive is nameplated for three phase input only, wire the input to terminals L1, L2, and
L3.
All three power output wires, from terminals T1, T2, and T3 to the motor, must be kept
tightly bundled and run in a separate conduit away from all other power and control wiring.
Do not install contactors between the drive and motor without consulting Minarik
Corporation for more information.
Warning
Hazard of electrical shock! Disconnect incoming power and wait three minutes
before servicing the drive. Capacitors retain charge after power is removed.
