N700E INSTRUCTION MANUAL
3-45
b42 ~ b46 ( Extended A33 ~ A37) – Also Explained in A -Group
b42
VFD Start Delay Time after DC Injection Braking
Range: 0.0 ~ 60.0 Sec in 0.1 Sec
Program the VFD start delay time after braking time at start is done
Related Parameters: A33, b43~b46
b43
DC Injection Braking Time at Start
Range: 0.0 ~ 6000 Sec in 0.1 Sec
Program the DC Injection Braking duration before VFD start
Related Parameters: A33, b42~b46
b44
Current Controller P Gain in DC Braking
Range: 1 ~ 10,000 in 1
Program the current controller P gain in DC braking
This value is applied both brake modes (start and stop)
If motor speed has a large overshoot at DC braking, decrease this value
If value is too big, motor can be vibrated or can’t be stopped
Related Parameters: A33, b42~b46
b45
Current Controller I Gain Time in DC Braking
Range: 0 ~ 10,000 Sec in 1 Sec
Program the current controller I gain in DC braking
This value is applied both brake modes (start and stop)
If motor is vibrated or not stop at DC braking, decreased this value
If value is too big, DC braking force can be weak
Related Parameters: A33, b42~b46
b46
DC Injection Braking Force at Start
Range: 0.0 ~ 100.0 % in 0.1 %
Program the level of DC injection braking force of rated electric power of N700E
Related Parameters:
b47
Flying Start P Gain
Range: 0.01 ~ 100.0 in 0.01
P gain is used to tune flying start operation. This parameter is only applicable when b23 =
1. If P gain is increased, the time of speed searching is reduced. If P gain is increased too
much, it can cause motor current overshoot. If P gain is decreased too much, it may not
work normally
Related Parameters: b23
b48
Flying Start I Gain Time
Range: 0.0 ~ 3600.0 in 0.1
I gain is used to tune flying start operation. If I gain is 0, only P gain will be used. If the
time of speed searching is slow, and b47 has already been tuned to its optimal value,
decrease (b48) value. If over current or overvoltage occurs during speed search, increase
I gain or set to 0.
Related Parameters: b23