INVT Goodrive350-19 Series Operation Manual page 87

Goodrive350-19 series VFD for crane
FWD
running
command
FWD
brake
release
frequency
FWD output
frequency
Brake
control
signal
T1: Delay before forward brake release P90.20 T3: Delay before forward brake closing P90.24
T2: Delay after forward brake release P90.22
T0: Maintenance frequency hold time for DEC stop P90.29
Maintenance frequency: Maintenance frequency for DEC stop P90.28
FWD brake release/closing frequency: P90.16/P90.18
D. If two segments of ACC/DEC time are used, you can increase ACC/DEC time at low frequency
running to ensure smoothness at low-frequency start or stop. You can set P08.19 (Switching
frequency of ACC/DEC time) to a value greater than 0 to enable two segments of ACC/DEC time and
then the ACC/DEC time 1 (P00.11 and P00.12) and ACC/DEC time 2 (P08.00 and P08.01) are used.
Frequency
Frequency
of grade 1
or 2
P08.19
0
Run
T1 T2
Torque
verification OK
Close
f
P00.11 P08.00
P00.11: ACC time 1
P08.00: ACC time 2
P08.19: ACC/DEC time switchover frequency point
Frequency
of grade 1
or 2
Maintenance
frequency
Release
T4: Delay after forward brake closing P90.26
P00.12: DEC time 1
P08.01: DEC time 2
-75-
Commissioning guidelines
T3 T4
T0
Close
P08.01
P00.12
FWD
brake
closing
frequency
t