Dc Braking Time; Dc Brake Proportional Gain; Momentary Power Loss Operation Selection; Maximum Allowable Power Loss Time - Delta Electronics AC Motor Drive VFD-VE Series User Manual

Chapter 4 Parameters|
Run/Stop
DC Brake during Start-up is used for loads that may move before the AC drive starts, such as
fans and pumps. Under such circumstances, DC Brake can be used to hold the load in
position before setting it in motion.
DC Brake during stopping is used to shorten the stopping time and also to hold a stopped load
in position. For high inertia loads, a dynamic brake resistor may also be needed for fast
decelerations.
07-05

DC Brake Proportional Gain

Control
VF VFPG
mode
Settings
It is used to set the output voltage gain when DC brake.
07-06

Momentary Power Loss Operation Selection

Control
VF VFPG
mode
Settings
This parameter determines the operation mode when the AC motor drive restarts from a
momentary power loss.
In PG control mode, the AC motor drive will execute the speed search function automatically
by the PG speed when this setting isn't set to 0.
07-07

Maximum Allowable Power Loss Time

Control
VF VFPG
mode
4-108
Output frequency
01-09
Minimum
output
frequency
ON
SVC
1 to 500Hz
SVC FOCPG TQRPG
0 Operation stops after momentary power loss.
1 Operation continues after momentary power loss, speed search
starts with the Master Frequency reference value.
2 Operation continues after momentary power loss, speed search
starts with the minimum frequency.
SVC FOCPG TQRPG

DC Braking Time

during Stopping
Start-point for
DC braking
time during
stopping
OFF
DC Braking Time
Time
Factory Setting: 50
Factory Setting: 0
Factory Setting: 2.0
Revision August 2008, 03VE, SW V2.04
Unit: 1
Unit: 0.1