CG VSR239p5 - Page 92

Emotron VS Series Quick Start Guide
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1: Positive direction
Tracking direction is positive direction
2: Negative direction
Tracking direction is negative direction
b1.05
Start frequency
Range:0.00～10.00Hz
Default:0.00Hz
b1.06
Startup frequency holding time
Range:0.0～100.0s
Default:0.0s
To ensure the motor torque at AC drive startup, set a proper startup frequency. In addition, to build
excitation when the motor starts up, the startup frequency must be held for a certain period.
The startup frequency (b1.05) is not restricted by the frequency lower limit. If the set target
frequency is lower than the startup frequency, the AC drive will not start and stays in the standby state.
During switchover between forward rotation and reverse rotation, the startup frequency holding
time is disabled. The holding time is not included in the acceleration time but in the running time of
simple PLC.
b1.07
Startup DC braking current
Range:0.0～150.0%
Default:0.0
b1.08
Startup DC braking time
Range:0.0～100.0s
Default:0.0
Startup DC braking is generally used during restart of the AC drive after the rotating motor stops.
Pre-excitation is used to make the AC drive build magnetic field for the asynchronous motor before
startup to improve the responsiveness.
Startup DC braking is valid only for direct start (b1.04 = 0). In this case, the AC drive performs DC
braking at the set startup DC braking current. After the startup DC braking time, the AC drives starts to
run. If the startup DC braking time is 0, the AC drives starts directly without DC braking. The larger the
startup DC braking current is, the larger the braking force is.
b1.09
Speed search current
Range:0.0～180.0
Default:100.0%
100% corresponds to rated current of the drive. When output current of drive is less than this
parameter value, it will be deemed that the output frequency of drive has been kept in step with motor
speed and the search action finished.
b1.10
Speed search decel time
Range:0.0～10.0
Default:2.0s
This parameter sets the output frequency Decel time of speed search action. This time means the
time required for Decel from maximum frequency to 0.The shorter the speed search Decel time is, the
faster the search will be. However, excessively rapid search may bring about inaccuracy of search
result.
b1.11
Sped search coefficient
Range:0.01～5.00
Default:0.30
Sped search coefficient
b1.12
Stop method
Range:0～1
Default: 0
0: Ramp to stop
Upon the receipt of stop command, drive will gradually decrease output frequency according to
the set Decel time, and stop when frequency attains 0.
1: Coast to stop
Upon the receipt of stop command, drive will immediately lock the output and the motor will stop
with its mechanical inertia.
b1.13
Initial frequency of stop DC
braking
Range:0.00～50.00Hz
Default:2.00Hz
b1.14
Stop DC braking current
Range:0.0～150.0%
Default:0.0%
b1.15
Waiting time of stop DC braking
Range:0.0～600.0s
Default:0.0s
b1.16
Stop DC braking time
Range:0.0～600.0s
Default:0.0s
Initial frequency of stop DC braking:
During the process of decelerating to stop, the AC drive starts DC braking when the running
frequency is lower than the value set in b1.13.
Stop DC braking current:
This parameter specifies the output current at DC braking and is a percentage relative to the base
value.
If the rated motor current is less than or equal to 80% of the rated AC drive current, the base value
is the rated motor current.
If the rated motor current is greater than 80% of the rated AC drive current, the base value is 80%
of the rated AC drive current.
Waiting time of stop DC braking: