Lenze TCF Series - Manual (Page 15)

7 INPUT AC POWER REQUIREMENTS
DANGER!
Hazard of electrical shock! Capacitors retain charge after they've been
removed . Disconnect incoming power and wait until the voltage between
terminals B+ and B- is 0 VDC before servicing the drive .
The input voltage must match the nameplate voltage rating of the drive . Voltage fluctuation
must not vary by greater than 10% over voltage or 15% under voltage .
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 5 HP (4 .0 kW) and below, and 18,000 RMS symmetrical amperes at
7 .5 - 10 HP (5 .5 - 7 .5 kW), 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’s power components .
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
TF200 Series drives are rated for 208/240 Vac, three phase, 50-60 Hz input . The drive will
function with input voltages of 208 to 240 Vac (+10%, -15%) at 48 to 62 Hz .
TF200Y Series drives are rated for 208/240 Vac, single or 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 .
TF400 Series drives are rated for 400/480 Vac three phase, 50-60 Hz input . The drive will
function with input voltages of 400 to 480 Vac (+10%, -15%) at 48 to 62 Hz .
TF500 Series drives are rated for 480/590 Vac, three phase, 50-60 Hz input, and will function
with input voltages of 480 to 590 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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