K&R GT600-4T132G User Manual page 127

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Function Code Parameter Name
FA-15 Proportional gain Kp2
FA-16 Integral time Ti2
FA-17 Differential time Td2
FA-18 PID parameter
switchover condition
FA-19
PID error 1 for auto
switchover
FA-20 PID error 2 for auto
switchover
FA-15 to FA-20: On some applications, switchover to another set of PID parameters may
be required to fine tune the overall performance as load conditions can vary during the
different machine cycles.
Switchover can be implemented via a DI terminal or automatically implemented according
to PID error level.
Figure 6-24 Switchover of two groups of PID parameters
PID parameters
(FA-05, FA-06, FA-07)
PID 2
(FA-15, FA-16, FA-17)
Function Code Parameter Name
FA-21 PID initial value
FA-22 PID initial value active time
FA-21 and FA-22: When the AC drive starts, the PID function turns active only after PID
output is fixed at PID initial value (FA-21) for time set in FA-22.
Figure 6-25 The PID initial value function
Output
frequency
Setting Range
0.0 to 100.0
0.01s to 10.00s
0.000s to 10.000s
0: No switchover
1: Switchover via DI
2: Auto switchover based on PID
error
3: Auto switchover based on running
frequency
0.0% to FA-20
FA-19 to 100.0%
PID 1
FA-19
Setting Range
0.0% to 100.0%
0.00s to 650.00s
FA - 22
FA - 21
6. Description of Parameters
FA-20 PID error
Time
Default
20.0
2.00s
0.000s
0
20.0%
80.0%
6
Default
0.0%
0.00s
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