2.3 b: Application
186 YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING
Setting Parameter Description
b5-90 [EZ Sleep Unit] This parameter sets the unit of measure for b5-92 [EZ Sleep Level]. When b5-90 = 0 [0.1Hz units], the setting
range of b5-91 [EZ Sleep Minimum Speed] is 0.0 to 590.0 Hz. When b5-90 = 1 [rev/min], the setting range is 0
to 35400 min-
-1
(r/min).
Note:
When you change b5-90, the value of b5-92 is not automatically updated.
b5-91 [EZ Sleep Minimum Speed]
Sets the output lower limit level for the PID control as Hz units or min
-1
(r/min) units.
When you use b5-91, set b5-34 = 0.0 [PID Output Lower Limit Level = 0.0 (disabled)]. When you set the lower
limit for PID output as a percentage of the Maximum Output Frequency, refer to page 191. The b5-89 setting
does not have an effect.
b5-92 [EZ Sleep Level] When the output frequency or motor speed is less than the value of b5-92 for longer than the value of b5-93 [EZ
Sleep Time], the drive does to sleep.
b5-95 = 0 [EZ Sleep Wake-up Mode = Absolute] When the PID feedback is less than the value of b5-94 [EZ Sleep Wake-up Level] for longer than the time set in
b5-96 [EZ Sleep Wake-up Time], the drive restarts operation from sleep.
b5-95 = 1 [EZ Sleep Wake-up Mode = Setpoint Delta] The drive resumes operation from the sleep state when the PID feedback has dropped below the value defined as
the PID setpoint value minus b5-94 continuously for the time configured with b5-96.
Figure 2.25 EZ Sleep/Wake-up Operation: PID Output is Normal and b5-92 = 0.0 Hz
*1 The values of b5-94 and b5-95 set operation.
*2 In the example, b5-92 is at the default setting of 0.0 Hz. Parameter b5-91 is the EZ sleep level.
■ b5-01: PID Mode Setting
No.
(Hex.)
Name Description
Default
(Range)
b5-01
(01A5)
PID Mode Setting
Sets the type of PID control.
0
(0 - 8)
0 : Disabled
1 : Standard
Enables PID control. The drive does D control on the difference between the feedback value and the PID setpoint
output through U5-02 [PID Input].
2 : Standard (D on feedback)
Enables PID control. The drive does D control on the feedback output through U5-06 [PID FdbkDif PID Fdbk].
3 : Fref + PID Trim
Enables PID control. The drive adds the frequency reference to the PID output. The drive does D control on the
difference between the feedback value and the PID setpoint output through U5-02 [PID Input].
4 : Fref + PID Trim (D on feedback)
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