User manual

P11 Initial Voltage/Torque/Power CFN08

LED Display LCD Display

Range 1 – 100 % of Voltage/Torque/Power (Default 25%)

Description Start Mode (P10/CFN01) set to Open Loop Voltage Acceleration:

This parameter sets the starting point for the voltage acceleration ramp profile. A typical value is 25%. If the

motor starts too quickly or the initial current is too high, reduce this parameter. If the motor does not start

rotating within a few seconds after a start is commanded, increase this parameter.

Start Mode (P10/CFN01) set to Current Control Acceleration:

Not used when the Start Mode parameter is set to Current control acceleration. Refer to the P6 - Initial

Current 1 (CFN03) parameter to set the initial current level.

Start Mode (P10/CFN01) set to TruTorque Control Acceleration:

This parameter sets the initial torque level that the motor produces at the beginning of the starting ramp

profile. A typical value is 10% to 20%. If the motor starts too quickly or the initial torque level is too high,

reduce this parameter. If the motor does not start rotating within a few seconds after a start is commanded,

increase this parameter. If the value is set too low a “No Current at Run” fault may occur during acceleration.

z NOTE: It is important that the (P75 / FUN06) - Rated Power Factor parameter is set properly so that the

actual initial torque level is the value desired.

Start Mode (P10/CFN01) set to (kW) Power Control Acceleration:

This parameter sets the initial motor power (KW) level that will be achieved at the beginning of the starting

ramp profile. A typical value is 10% to 30%. If the motor starts too quickly or the initial power level is too

high, reduce this parameter. If the motor does not start rotating within a few seconds after a start is

commanded, increase this parameter. If the value is set too low a “No Current at Run” fault may occur during

acceleration.

z NOTE: It is important that the (P75 / FUN06) - Rated Power Factor parameter is set properly so that the

actual initial power level is the value desired.

See Also Initial Current 1 (P6 / QST 06) parameter on page 79.

Ramp Time 1 (P8 / QST 08) parameter on page 81.

Start Mode (P10 / CFN 01) parameter on page 83.

Maximum Torque/Power (P12 / CFN 09) parameter on page 85.

Rated Power Factor (P75 / FUN 06) parameter on page 125.

Theory of Operation section 7.3, Acceleration Control on page 140.

6 - PARAMETER DESCRIPTION

CFN: Init V/T/P

08 25 %