5-36
Fig.A
Fig. B
Fig. C
Fig. D
Fig. E
Fig. G
Fig. F
motor speed or
commanded
speed S
level
delay
2nd gain
1st
1st
speed N
delay
2nd gain
1st
COIN
1st
∆
S
command
speed S
level
delay
1st gain
2nd
1st
2nd
1st
speed N
deviation pulse
level
delay
2nd gain
1st
1st
at stall
no command pulse
× Pr1.16,delay time
| actual speed |
<
Pr1.17 level
| actual speed |
<
(Pr1.17 level - Pr1.18 hysteresis)
| actual speed |
<
(Pr1.17 level - Pr1.178 hysteresis)
1st gain
in action
2nd gain
at settling
2nd gain
proximity of stall
2nd gain for velocity integrating
only and 1st gain for others
delay
2nd gain
1st
1st
command
speed S
command pulse
exists.
speed N
level
1st gain
2nd
1st
2nd
1st
switching level
switching level
Caution
Above Fig. does not reflect a timing lag of gain switching due to hysteresis (Pr1.18, 1.23 and
1.27).
4. Manual Gain Tuning (Basic)
Gain Switching Function
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