BENSHAW RSi SG Series, Instruction Manual

Page: 99 / 218

Chapter 6 - Parameter Description [FUN]
6-11
FUN-11 [Pre-heat value] is set in percent of motor
rated current. Adjustment range is 1% to 50%.
FUN-12 [Pre-heat duty] sets the duty cycle for a 10
second interval. At 100% setting, DC current is
continuously supplied to the motor. Adjustment range
is 1% to 100%.
Note: Because the drive is operating, many parameters
cannot be changed when the pre-heat function is active.
Remove the reference command at the terminal to turn
off the pre-heat function before attempting to adjust
parameters.
FUN-20: Start Mode
This parameter sets the starting method of the drive.
FUN-21: Starting DC Magnetizing Time
FUN-22: Starting DC Magnetizing Value
When FUN-20 is set to DC-start, the drive will output
the amount of dc current set in FUN-22 for the amount
of time set in FUN-21. The purpose of these
parameters is to stop a freewheeling motor before
starting. The drive will start accelerating after the
amount of time in FUN-21.
FUN-22 [Starting DC Magnetizing Value] is the
amount of DC Current applied to the motor and is set
as percent of DRV-05 [Motor Rated Current].
Note
: Do not set FUN-22 [Starting DC Magnetizing
Value] higher than Inverter Rated Current. Otherwise,
Motor Overheating or an Overload Trip may occur.
Note: DC-start is disabled when FUN-21 or 22 is set to “0”.
Note: DC-start is deactivated in Sensorless mode.
CAUTION
If the pre-heat current or duty cycle is set too high
motor overheating may result. Reduce FUN-11
[Pre-heat value] or FUN-12 [Pre-heat duty] if the
inverter or motor becomes overheated.
FUN-20
Setting Range
Function description
Accel Acceleration to start
(Factory default)
Dc-start
Drive starts acceleration after
magnetizing DC current (see FUN-21
and FUN-22)
Flying-start Drive matches the speed and starts
into a rotating motor. See AFN-22.
Time
Output Frequency
FX-CM
ON
Time
Time
Run Command
FUN-22
FUN-22
T
T1: FUN-21 [Starting DC Magnetizing
Time]
D1: FUN-22 [Starting DC Magnetizing
Output Current
Tim
D1
Output Voltage
FUN ► DcSt value
22 50 %
Factory Default:
50 %
FUN ► DcSt time
21 0.0 sec
Factory Default:
0.0 sec
FUN ► Start Mode
20 Accel
Factory Default:
Accel
FUN ► PreHeatLevel
11 30%
Factory Default: 3
0%
Factory Default: 10
0%
FUN ► PreHeatPerc
12 100%