INVT Goodrive350-19 Series Operation Manual page 59

Goodrive350-19 Series VFD for Crane
Function
code
Speed reference under brake
P90.35
Brake selection for
P90.37
P93.01 Braking slip fault delay time
5.1.1.3 Commissioning brake in torque control
In vector control, after the torque mode is enabled (P03.32=1) and holding brake control is enabled
(P90.04=1), the holding brake in torque mode is enabled.
Brake release start timing:
1. Before brake release, the torque frequency upper limit in forward/reverse rotation equals the
holding brake release frequency reference in forward/reverse rotation, and the set torque
equals P90.42+5.0%.
2. If the detected output torque is greater than or equal to the preset brake opening torque value
(P90.42), the delay before brake release starts. When the delay time reaches, the release
output is carried out, and then the delay after brake release starts. When the delay time
reaches, it indicates that the release timing ends.
3. After brake release, the set torque returns to normal and the frequency upper limit of
forward/reverse rotation in torque mode returns to normal. This is, the parameters in group P03
determines that the VFD runs in normal torque mode.
Name
status error
forward/reverse
switchover
Description
1: Enable (The brake feedback alarm
is also reported.)
0.00–50.00Hz
0–1
0: No switchover
1: Switchover
0.000–5.000s
The value 0 indicates brake slip is not
detected, while a non-zero value
indicates brake slip is detected.
-47-
Commissioning guidelines
Default
5.00Hz
0
0.500s