Master/Slave Switchover - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD for crane
Function
code
transmission unit pulse
ratio for position
synchronization
synchronization
P28.08
deviation deadzone
P28.09 synchronization
deviation threshold
P28.10 synchronization
regulator output limit
P28.11 synchronization pulse
count reset method
P28.12 synchronization
proportional coefficient
P28.13 synchronization
integral time
P28.14 synchronization filtering

5.14.4 Master/slave switchover

1. Normal master/slave switchover work conditions
Application description: Both the master VFD and slave VFD drive a motor, but in certain cases, the
master and slave must be switched over.
Commissioning description: Set an S (for example, S1) terminal of the master to 72, and an S (for
Name
Position
0–50000
When the position difference is greater than
P28.08, correction on the slave is valid.
setting
0–50000
Position
When the position difference is greater than
P28.09, a master/slave position fault is
reported.
Position
0.0–100.0%
0–1
0: Automatic
During stop, the position synchronization pulse
Position count is automatically reset.
1: Terminal based
If the input terminal selects the position
synchronization pulse count reset function, the
pulse count is automatically reset when there is
signal input.
Position
0.000–10.000
Position
0.01–80.00s
Position
0.00–10.00s
time
Description
-104-
Commissioning guidelines
Default
50
1000
5.0%
0
0.005
8.00s
0.05s