4.4 Basic Parameter Adjustments
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07) 129
Start-Up Programming &
Operation
4
Drive Duty Mode, Rated Current and Carrier Frequency
When C6-01 is set to 1 (Normal Duty), the drive overload current rating becomes
120% for 1 minute. The 120% level is with respect to the drive's Normal Duty
current rating. When C6-01 is set to 0 (Heavy Duty), the drive overload current
rating becomes 150% for 1 minute. The 150% level is with respect to the drive's
Heavy Duty current rating.
The Heavy Duty rated current of the drive is valid for 8 kHz carrier frequency and
below, the Normal Duty rated current is valid for 2 kHz or Swing PWM. If the
carrier frequency is set beyond these values, the drives rated current is reduced.
Refer to Specifications on page 313 for details on carrier frequency derating.
◆ Drive Input Voltage Setting E1-01
Set E1-01 according to the power supply voltage. This setting serves as a base
value for certain drive protective functions.
NOTICE: Set drive input voltage (not motor voltage) in parameter E1-01 for proper function of
the protective features of the drive. Failure to comply could result in improper drive operation.
Set parameter E1-01 to match the input voltage of the drive.
Parameter Name Description
Setting
Range
Default
E1-01
Input
Voltage
Setting
Set to the nominal voltage of the incoming line. Sets the
maximum and base voltage used by preset V/f patterns
(E1-03), and adjusts the levels of drive protective features (e.g.
overvoltage, braking resistor level, stall prevention, etc.).
155 to 255 230 V
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