SM01P
10
7
INPUT AC POWER REQUIREMENTS
DANGER!
Hazard of electrical shock! Capacitors retain charge after power is removed . Before
servicing the drive, disconnect incoming power and wait until the voltage between
terminals B+ and B- is 0 VDC .
The input voltage must match the nameplate voltage rating of the drive . Voltage fluctuation
must not vary by greater than 10% overvoltage or 15% undervoltage .
NOTE
Drives with dual input voltage ratings must be programmed for the proper supply
voltage (refer to Parameter 01 - LINE VOLTAGE SELECTION in Section 15,
DESCRIPTION OF PARAMETERS) .
The drive is suitable for use on a circuit capable of delivering not more than 5,000 RMS
symmetrical amperes at the drive’s rated voltage .
If the kVA rating of the AC supply transformer is greater than 10 times the input kVA rating
of the drive(s), an isolation transformer or 2-3% input line reactor must be added to the
line side of the drive(s) .
Three phase voltage imbalance must be less than 2 .0% phase to phase . Excessive phase
to phase imbalance can cause severe damage to the drive .
Motor voltage should match line voltage in normal applications . The drive’s maximum
output voltage will equal the input voltage . Use extreme caution when using a motor with
a voltage rating which is different from the input line voltage .
7.1
Input Voltage Ratings
SM000S Series
drives are rated for 120 Vac single phase, 50-60 Hz input . The drive will
function with input voltage of 120 Vac (+10%, -15%) at 48 to 62 Hz .
SM200S & SL200S Series
drives are rated for 208/240 Vac, single phase, 50-60 Hz
input . The drive will function with input voltage of 208 to 240 Vac (+10%, -15%), at 48
to 62 Hz .
SM200 Series
drives are rated for 208/240 Vac, three phase, 50-60 Hz input . The drive
will function with input voltage of 208 to 240 Vac (+10%, -15%) at 48 to 62 Hz .
SM400 Series
drives are rated for 400/480 Vac, three phase, 50-60 Hz input . The drive
will function with input voltage of 400 to 480 Vac (+10%, -15%) at 48 to 62 Hz .
NOTE
Parameter 01 - LINE VOLTAGE SELECTION must be programmed according to the
applied input voltage . Refer to Section 15, DESCRIPTION OF PARAMETERS .
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