Delta VFD-ED Series User Manual

12 Descriptions of Parameter Settings | VFD-ED
12-07-7

DC Brake Current Level at Stop
Control Mode VF VFPG SVC Default: 0
Settings 0–100% of the rated current of the motor drive
 Sets the level of the DC brake current output to the motor at stop. When setting the DC brake current, the
rated current (Pr.00-01) is 100%. It is recommended that you start with a low DC brake current level and
then increase until you reach the proper holding torque. However, the DC brake current cannot exceed the
motor’s rated current to prevent the motor from burnout. Therefore, DO NOT use the DC brake for
mechanical retention, otherwise injury or accident may occur.
 When in FOCPG/FOCPM control mode, you can enable the DC brake without setting up Pr.07-30.

07-31
Drive Output Torque
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 0.0
Settings 0.0–300.0%
 Measurement: Make mechanical brake engage, and enable drive run 3 to 5 seconds. At this time, output
torque value will be displayed on built-in keyboard panel (set Pr.00-04=8). Then, enter the value into
Pr.07-31.
 If the value displays too fast to view, increase Pr.11-21 (Filter Time Display on KPED-LE01).
07-32
Brake Torque Test Function
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 0
0: No function
Settings 1: Brake torque test
 Brake torque test action:
1. Make sure the drive’s output torque value has been entered (as described in Pr.07-31).
2. Enter Pr.07-36 and Pr.07-37 according to actual conditions
3. Set Pr.07-32=1. Press RUN key on digital keypad KPC-CC01 or execute inspection upward operation
or downward operation in manual mode (inspection) (set Pr.00-15=1) so that brake torque test can be
run immediately.
4. In the process of brake torque test, warning code bttA (BTTx Testing) will be triggered. Increase 10%
of Pr.07-31 setting value for each time, and a maximum test is 10 times (BTT1 to BTT10). Once the
test succeeds, warning code bttS (BTTx Success) will be displayed.
 Multi-function input terminal MI=57 can also be used to enable the brake torque test.
07-33
Brake Torque Test Distance
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 0
Settings 0–65535 ppr
07-34
Brake Torque Test Time
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 5.0
Settings 0.0–5.0 sec.

Delta VFD-ED Series Specifications

General

Brand	Delta
Model	VFD-ED Series
Category	DC Drives
Language	English