Chapter 6 Specification of Parameters GK600 User Manual
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When this parameter is set to 2 or 3, the drive will detect the motor rotary speed in order to
perform a smooth start from the detected rotary speed. This start method is applicable to the
restart on momentary power loss, like rotating fan, etc. When this parameter value is set to
flying start 1, motor parameters and b1-10~b1-12 needs to be set correctly and appropriately.
When it is set to flying start 2, option board EPC-VD2 must be required. In general, for motor
restart, flying start 2 is much smoother then flying start 1, as it has the assistance of option
board EPC-VD2.
b1-06
Start frequency
Range: 0.00Hz ~ upper limit
frequency
Factory default:
0.00Hz
b1-07
Holding time of start
frequency
Range: 0.0s ~ 3600.0s
Factory default:
0.0s
Start frequency is initial output frequency of drive start from stop status. Start frequency holding
time is the continuous run time with start frequency. After this holding time, the drive will
Accelerate to set frequency. Usually appropriate start frequency and holding time assure the
starting torque of heavy-duty load.
Provided that set frequency is lower than start frequency, drive output frequency is 0 Hz. Start
frequency and start frequency holding time take effect at the moment of motor start, as well as the
transfer between forward and reverse. Accel time at Group b2 excludes the holding time of start
frequency.
b1-08
DC braking current at
start
Range: 0.0%~200.0%
Factory default:
0.0%
b1-09
DC braking time at start
Range: 0.00s~30.00s
Factory default:
0.00s
When the motor is started by the method "DC braking start", it is essential to set these two
parameters.100% corresponds to rated current of drive. If braking time is set to 0.0s, DC
braking at start is disabled.
b1-10
Flying start 1 current
Range: 0~200.0%
Factory default:
100.0%
When b1-05 is set to 2, flying start 1 current should be set appropriately. 100% corresponds to
drive rated current. When drive output current is less than this parameter value, it is deemed
that drive output frequency is the same as motor speed and the flying operation is finished.
b1-11
Flying start 1 Decel time
Range: 0.1s~20.0s
Factory default:
2.0s
This parameter takes effect when b1-05 is set to 2, flying start 1.This time setting refers to the
time drive deceleration from maximum frequency to 0. The shorter the flying start Decel time is,
the faster the flying start will be. However, excessively rapid flying start brings about inaccuracy
