Goodrive350-19 Series VFD for Crane
Function
code
Torque setting for brake
P90.42
Note: You need to set a reasonable torque limit for P90.41 according to the actual situation to
prevent speed overshoot after brake release.
5.1.1.4 Commissioning brake in position mode
Holding brake control is supported in digital positioning mode. See the following procedure:
Step 1 Select digital positioning (P21.00 tens place =1) or select "51: Terminal for switching between
position control and speed control" for the S terminal function; set other related parameters
P21.16–P21.21 for digital positioning.
Step 2 Enable holding brake control (P90.04=1). If RO1 is connected to the holding brake contactor,
set P06.03 to 49.
Step 3 Set brake release/closing logic related parameters.
Brake release start timing:
Before brake release, the system will detect whether the present output current is greater than
P21.47 (Brake release current in position control). If yes, a delay before brake release starts. When
the delay time reaches, the brake release output is carried out. At the same time, the 0Hz operation
will be carried and a delay after brake release starts. When the delay time reaches, the brake release
timing ends and normal positioning work begins.
Brake closing timing for stop:
During stop, the VFD automatically switches from the position mode to the speed mode and then
decelerates to stop. Then the brake logic uses the brake closing logic in the speed mode.
Step 4 By setting P21.17 (Position set in digital mode) and starting the VFD, you can debug whether
the brake release/closing meets the timing and position requirements. Afterwards, switch to the
position set in communication mode and start debugging.
Main parameters are listed in the following.
Name
delay time before brake release, after
brake release, before brake closing, or
after brake closing.
0.0–200.0%
During running, when the torque feedback
value is greater than or equal to P90.42, it
enters the brake release timing. (It is valid
release
only when P90.04=1, which indicates the
brake is controlled by the VFD, and the
VFD uses the torque mode.)
Description
-49-
Commissioning guidelines
Setting
50.0%
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