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Operation Manual of INVT CHS100 AC Servo Drive 6 Detailed parameter description
77
1st gain
2nd gain
1st speed integration time
constant (Pb.05)
2nd speed integration
time constant (Pb.08)
Function
code
Name
Unit
Range
Default
Mode
Pb.17
Gain switching
condition
- 0~5 0 P.S
This parameter is used to select how to switch the gain under a special condition. The
switching modes are:
0: Manual gain switching;
At this time it can be switched between the 1st gain and the 2nd gain as well as speed
PI regulation and P regulation through the gain switching terminal (PLC). See the
description of parameter Pb.16 for details.
1: Fix to the 2nd gain;
2: When the retention pulse is too large, select the 2nd gain, otherwise select the 1st
gain and the threshold of the retention pulse is set with Pb.18;
3: When the speed command is too large, select the 2nd gain, otherwise select the 1st
gain and the threshold of the speed command is set with Pb.18;
4: When the speed command is relatively small, select the 2nd gain, otherwise select
the 1st gain and the threshold of the speed command is set with Pb.18;
5: Position c speed gain switching mode. In the position mode, when no
position command pulse is inputted, it will select the 1st gain. When a position
command pulse is inputted, it will select the 2nd gain. After the position command pulse
stops input for 3ms and the motor speed falls below the speed threshold set with Pb.18,
it will switch to the 1st gain.
The 1st gain and the 2nd gain also include not only the proportional parameters but
also the integral parameters. See chapter 7 for the debugging methods of these
parameters.
Function
code
Name
Unit
Range
Default
Mode
pulse 0~5000 100
Pb.18
Gain switching
threshold
r/min 0~500.0 10.0
P.S