Yaskawa AC Drive P1000 Bypass Technical Manual - Manual (Page 101)

Table 5.6 PID Fine Tuning
Goal Tuning Procedure Result
Suppress overshoot
• Reduce the derivative time (b5-05)
• Increase the integral time (b5-03)
Response Before adjustment
After adjustment
Time
Achieve stability quickly while
allowing some overshoot
• Decrease the integral time (b5-03)
• Increase the derivative time (b5-05)
Response
Before adjustment
After adjustment
Time
Suppress long cycle oscillations
(longer than the integral time setting) Increase the integral time (b5-03)
Response
Before adjustment
After adjustment
Time
Suppress short cycle oscillations
• If oscillation cycle time is close to the
derivative time, reduce the derivative
time (b5-05).
• If the derivative time is set to 0.00 s and
oscillations are still a problem, reduce
the proportional gain (b5-02) or increase
the PID primary delay time (b5-08)
Response
Before adjustment
After adjustment
Time
n b5-89: Sleep Method Selection
Determines how the drive sleeps and wakes-up when using PID.
No. Name Setting Range Default
b5-89 Sleep Method Selection 0, 1 0
Setting 0: Standard
Setting 1: EZ Sleep/Wake-up
n b5-90: EZ Sleep Unit
Sets the unit, range, and resolution of parameters b5-91 and b5-92.
No. Name Setting Range Default
b5-90 EZ Sleep Unit 0, 1 <1> 0
<1> Unit and resolution are determined by b5-20, b5-39, and b5-46. Internally limited to b5-38. Changing b5-20, b5-38 and b5-39 will not automatically
update the value of this parameter.
Setting 0: Hz
Setting 1: RPM (number of motor poles must be entered)
n b5-91: EZ Minimum Speed
Sets the PID minimum speed and integral lower limit.
The lower limit of the internal value is the higher of b5-34 and d2-02.
5.2 b: Application
YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual 101
5
Programming