11.3 b: Application
736 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
When the PID output is negative, the motor will rotate in reverse.
■ b5-53: PID Integrator Ramp Limit
No.
(Hex.)
Name Description
Default
(Range)
b5-53
(0B8F)
RUN
PID Integrator Ramp
Limit
Sets the responsiveness of PID control when the PID feedback changes
quickly.
0.0 Hz
(0.0 - 10.0 Hz)
Note:
• This parameter is disabled when set to 0.0 Hz.
• When the integrator ramp limit is enabled (b5-53 > 0.0 Hz), the PID integrator value limit is the range set by the output frequency ±b5-
53.
• When the PID feedback changes quickly, gradually decrease the value of this parameter in increments of 0.1 Hz to decrease the speed
of the response of PID control.
■ b5-54: PID Softstarter Cancel Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-54
(0BB7)
PID Softstarter
Cancel Selection
Sets how the soft-starter responds to PID input/output.
0
(0, 1)
Table 11.32 shows how the soft-starter responds to PID input/output.
Table 11.32 Soft Starter and PID Input/Output
Selection
PID Frequency
Reference Input
PID Frequency
Reference Output
Soft Starter Input Soft Starter Output
Soft Starter 1 Frequency Reference Soft Starter Input PID Frequency Reference
Output
Output frequency
Soft Starter 2 Soft Starter Output Output frequency Frequency Reference PID Frequency Reference
Input
0 : Disabled
The soft starter process occurs downstream from the PID function. The PID function input functions as the
frequency reference, the PID function output functions as the soft starter input, and the soft starter output
functions as the output frequency.
1 : Enabled
The soft starter process occurs upstream from the PID function. The soft starter input functions as the frequency
reference, the soft starter output functions as the soft starter input, and the PID function output functions as the
output frequency.
■ b5-55: PID Feedback Monitor Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-55
(0BE1)
PID Feedback
Monitor Selection
Sets the monitor for PID Feedback (Ux-xx).
000
(000 - 999)
Note:
• You cannot select parameter U5-xx.
• This parameter is disabled when set to 000.
■ b5-56: PID Feedback Monitor Gain
No.
(Hex.)
Name Description
Default
(Range)
b5-56
(0BE2)
PID Feedback
Monitor Gain
Sets the gain for the monitor specified in b5-55 [PID Feedback Monitor
Selection].
1.00
(0.00 - 10.00)
Note:
Set b5-18 = 1 [b5-19 PID Setpoint Selection = Enabled] to enable this parameter.
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