12.3 b: Application
752 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
■ b5-10: PID Output Gain Setting
No.
(Hex.)
Name Description
Default
(Range)
b5-10
(01AE)
RUN
PID Output Gain Setting
Sets the amount of gain to apply to the PID output.
1.00
(0.00 - 25.00)
Applies a gain to the PID output and can help when b5-01 = 3 or 4 [PID Mode Setting = Fref + PID Trim, Fref +
PID Trim (D on feedback)].
■ b5-11: PID Output Reverse Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-11
(01AF)
PID Output Reverse
Selection
Sets the function that enables and disables reverse motor rotation for negative PID control output.
0
(0, 1)
This parameter is disabled when b5-01 = 3, 4 [PID Mode Setting = Fref + PID Trim, Fref + PID Trim (D on
feedback)]. There is no limit for PID output (PID output can be positive or negative). Operates the same as setting “1:
Enabled: Negative lower limit”.
0 : Lower Limit is Zero
When PID output is negative, PID output is limited to 0 and drive output is shut off.
1 : Negative Output Accepted
When the PID output is negative, the motor will rotate in reverse. When b1-04 = 1 [Reverse Operation Selection =
Reverse Disabled], the lower limit is 0.
■ b5-12: Feedback Loss Detection Select
No.
(Hex.)
Name Description
Default
(Range)
b5-12
(01B0)
Feedback Loss Detection
Select
Sets the drive response to PID Feedback Low/High. Sets drive operation after the drive detects PID
feedback Low/High.
0
(0 - 5)
0 : Digital Out Only, Always Detect
The MFDO terminal set for PID Feedback Low or PID Feedback High [H2-01 to H2-03 = 3E, 3F] activates. When
the drive detects Feedback Low/High, the keypad will not show a minor fault/alarm and the drive will continue
operation.
When the feedback signal is less than the level set in b5-13 [PID Feedback Loss Detection Lvl] for longer than the
time set in b5-14 [PID Feedback Loss Detection Time], the MFDO terminal set for a PID Feedback Low activates.
When the feedback signal is more than the level set in b5-36 [PID High Feedback Detection Lvl] for longer than the
time set in b5-37 [PID High Feedback Detection Time] the MFDO terminal set for a PID Feedback High activates.
When the feedback value is not in the detection range, the drive resets the MFDO.
1 : Alarm + Digital Out, Always Det
The drive detects FbL [PID Feedback Loss] and FbH [Excessive PID Feedback]. The MFDO terminal set for PID
Feedback Low or PID Feedback High [H2-01 to H2-03 = 3E, 3F] activates. The output terminal set for Alarm [H2-
01 to H2-03 = 10] activates and the drive continues operation.
When the feedback signal is less than the level set in b5-13 for longer than the time set in b5-14, the MFDO terminal
set for a PID Feedback Low activates.
When the feedback signal is less than the level set in b5-36 for longer than the time set in b5-37, the MFDO terminal
set for a PID Feedback High activates.
When the feedback value is not in the detection range, the drive resets the MFDO.
2 : Fault + Digital Out, Always Det
The drive detects FbL and FbH. Fault relay output terminal MA-MC activates, MB-MC turns OFF, and the motor
coasts to stop.
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