YASKAWA GA700 Technical Manual page 622

11.3 b: Application
Purpose
• Set a smaller value to b5-05
Suppress overshoot.
• Set a larger value to b5-03 [Integral
Quickly stabilize control. • Set a smaller value to b5-03 [Integral
• Set a larger value to b5-05 [Derivative
Suppress long-cycle Set a larger value to b5-03 [Integral
oscillations. Time Setting (I)].
Suppress short-cycle • Set a smaller value to b5-05
oscillations.
• If oscillation is not suppressed by
■
EZ Sleep/Wake-up Functionality
Configures b5-89 = 1 [Sleep Method Selection = EZ Sleep/Wake-up] to enable the EZ Sleep/Wake-up function.
Note:
• When b5-89 = 0 [Sleep Mode Selection = Standard], the EZ Sleep function and related parameters are disabled. Parameter b5-91 [EZ
Minimum Speed] is excluded from this rule.
• Parameter b5-15 [PID Sleep Function Start Level] is disabled when b5-89 = 1.
Configuration Parameter
b5-90 [EZ Sleep Unit]
b5-91 [EZ Minimum Speed]
622
Procedure
[Derivative Time (D)].
Time Setting (I)].
Time Setting (I)].
Time (D)].
[Derivative Time (D)].
setting b5-05 = 0.00 [Derivative Time
(D) = disabling D control], then
either set a smaller value to b5-02
[Proportional Gain Setting (P)] or set
a larger value to b5-08 [PID Primary
Delay Time Constant].
Determines the unit of measure for b5-92 [EZ Sleep Level]. The setting range of b5-
91 [EZ Minimum Speed] is 0.0 to 590.0 Hz when b5-90 = 0 [0.1Hz units]. The
setting range is 0 to 35400 min
Note:
The value of b5-92 is not automatically updated when b5-90 is changed.
This parameter functions as the lower limit for PID output. The lower limit of PID
output is internally configured with the larger value between b5-91, b5-34 [PID
Output Lower Limit], and d2-02 [Frequency Reference Lower Limit], regardless of
the setting of b5-89.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Results
Description
-1 (r/min) when b5-90 = 1 [rev/min].