BENSHAW RediStart EXEXMVRMX3 Series, User Manual

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Maximum Current 2 CFN 07
LCD Display
Range 100 – 800 % of FLA (Default: 600%)
Description The Maximum Current 2 parameter is set as a percentage of the Motor FLA (QST 01) parameter setting, when
the second ramp is active. Refer to the Maximum Current 1 (CFN 04) on page 65 parameter for description of
operation.
See Also
Maximum Current 1 (CFN 04) on page 65.
Digital Input Configuration (I/O 01-08) on page 90.
Theory of Operation section 7.3.1, Current Ramp Settings, Ramps and Times on page 123.
Theory of Operation section 7.3.6, Dual Acceleration Ramp Control on page 128.
Initial Voltage/Torque/Power CFN 08
LCD Display
Range 1 – 100 % of Voltage/Torque/Power (Default: 25%)
Description
Start Mode (CFN 01) 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 (CFN 01) set to Current Control Acceleration:
Not used when the Start Mode parameter is set to Current control acceleration. Refer to the Initial Current 1
(QST 06/CFN 03) parameter to set the initial current level.
Start Mode (CFN 01) 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 Rated Power Factor (FUN 06) parameter is set properly so that the actual
initial torque level is the value desired.
Start Mode (CFN 01) 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 Rated Power Factor (FUN 06) parameter is set properly so that the actual
initial power level is the value desired.
See Also
Start Mode (CFN 01) on page 63.
Ramp Time 1 (CFN 02) on page 64.
Initial Current 1 (CFN 03 / QST 06) on page 64.
Maximum Torque/Power (CFN 09) on page 66.
Rated Power Factor (FUN 06) on page 103.
Theory of Operation section 7.3, Acceleration Control on page 123.
66
6 - PARAMETER DESCRIPTION
CFN: Max Cur 2
07
600 %
CFN: Init V/T/P
08
25 %