INVT Goodrive350-19 Series User Manual

Goodrive350-19 series VFD Commissioning
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T1: Delay before forward brake release P90.20 T3: Delay before forward brake closing P90.24
T2: Delay after forward brake release P90.22 T4: Delay after forward brake closing P90.26
T5: Delay before reverse brake release P90.21 T7: Delay before reverse brake closing P90.25
T6: Delay after reverse brake release P90.23 T8: Delay after reverse brake closing P90.27
FWD/REV
running
command
Output
frequency
Output current
Brake
opening
command
Brake action
Brake
feedback
FWD/REV brake
closing frequency
FWD/REV
brake
release
frequency
T1/T5 T2/T6
T3/T7 T4/T8
Torque verification
current
(P90.12/P90.13)
Torque
verifying is
OK
Set
frequency
I/F FWD/REV
current setpoint
(P04.41/P04.51)
Close
Release
Close
Open
Close
Close
Space voltage vector control mode
Starting frequency
for exiting I/F
mode (P04.44)
End frequency for
exiting I/F mode
(P04.50)
P90.16/
P90.17
P90.18/
P90.19
8. Adjust braking comfortability, which can be implemented by using the following methods.
A. In I/F mode, you can decrease the brake release frequency and brake closing frequency and
adjust the T1–T8 delay parameters in the timing sequence so that the impact is reduced. Note that
the brake release frequency and brake closing frequency are greater than P01.01 (Starting frequency)
and P01.15 (Stop speed) in most cases.
B. During the reverse-running stop, you can apply the forward torque, that is, for reverse-running start,
you can perform forward brake release and then perform reverse running; for reverse-running stop,
you can switch reverse running to forward running, close the brake, and then perform forward-running
stop. This ensures there is no slip is felt during reverse start or stop. Forward torque is enabled by
setting P90.05. The timing sequence is as follows:

INVT Goodrive350-19 Series Specifications

General

Brand	INVT
Model	Goodrive350-19 Series
Category	DC Drives
Language	English