Lenze MCH Series - Manual (Page 27)

13435744_EDBMH01_v13 23
9 VOLTAGE SELECTION
MH200 Series drives are rated for 240/200 Vac, 50-60 Hz input. The drive will function
with input voltages of 200 to 240 Vac (+10%, -15%), at 48 to 62 Hz.
MH400 Series drives are rated for 480/400 Vac, 50-60 Hz input. The drive will function
with input voltages of 400 to 480 Vac (+10%, -15%), at 48 to 62 Hz.
MH500 Series drives are rated for 590/480 Vac, 50-60 Hz input. The drive will function
with input voltages of 480 to 590 Vac (+10%, -15%), at 48 to 62 Hz.
To select the proper input voltage on 240/200 VAC 30-60 Hp models, 400/480 VAC 75-
150 Hp and 480/590 VAC 75-150 Hp models the PL2 plug must be in the correct position.
PL2 is located either at the lower right corner, or upper right corner of the power board,
depending on horsepower. The PL2 plug is used to select the correct input voltage. Plug
PL2 into the top and middle pins to select 240, 480, or 590 VAC or the middle and bottom
pins to select 200, 400, or 480.
NOTE:
In addition to the voltage plug selection, Parameter 0 – LINE VOLTS must also be
programmed for the proper voltage. Refer to Section 18 - DESCRIPTION OF PARAMETERS.
Voltage Selection Plug (PL2)
MODEL
CODE
1200
1400
1500 200V
400V
480V
240V
480V
590V
240 / 480 / 590 Vac INPUT
MODEL
CODE
1200
1400
1500
200V
400V
480V
240V
480V
590V
200 / 400 / 480 Vac INPUT
PL2 PL2
10 POWER WIRING
WARNING!
Hazard of electrical shock! Disconnect incoming power and wait three minutes
before servicing the drive. Capacitors retain charge after power is removed.
Note the drive input and output current ratings and check the 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. If one has not been supplied by Lenze AC Tech 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. The disconnect 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.
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 Lenze
AC Tech Corporation for more information. Operating such devices while the drive
is running can potentially cause damage to the drive's power components. If such a
device is required, it should only be operated when the drive is in a STOP state.