INVT Goodrive350-19 Series Operation Manual page 60

Goodrive350-19 Series VFD for Crane
Brake closing timing for stop: The VFD automatically switches from the torque mode to the speed
mode and then decelerates to stop. Then the holding brake logic can directly use the brake closing
logic in the speed mode. The holding brake timing diagram is as follows:
FWD/REV
running
command
P03.16/P03.17
P90.16/90.17
Output
frequency
P03.20
Set frequency
P90.42+5%
P90.42
Output frequency
Brake
opening
command
Brake
action
T1: Delay before forward brake release P90.20
T2: Delay after forward brake release P90.22
T5: Delay before reverse brake release P90.21
T6: Delay after reverse brake release P90.23
For details about torque control function code settings, see P03.11–P03.17 and P03.32.
The parameters that are different from those in holding brake in speed mode are listed in the
following.
Function
code
Brake release/closing
P90.41 torque limit in vector
Torque mode
T1/T5 T2/T6
Close
Close
Name
Setting range: 0.0–300.0% (of the motor
rated current)
During the vector control in speed mode,
control
the torque amplitude is limited within the
FWD/REV
FWD/REV
brake closing
brake release
frequency
frequency
Release
Open
T3: Delay before forward brake closing P90.24
T4: Delay after forward brake closing P90.26
T7: Delay before reverse brake closing P90.25
T8: Delay after reverse brake closing P90.27
Description
-48-
Commissioning guidelines
Speed mode
T3/T7 T4/T8
Close
Close
Setting
250.0%