YASKAWA AC Drive GA700 High Performance Type Technical Manual

F1-04: Speed Deviation Detection Select

No. (Hex.)	Name	Description	Default (Range)
F1-04 (0383)	Speed Deviation Detection Select	Sets the method to stop the motor or let the motor continue operating when the drive detects dEv [Speed Deviation].	3 (0 - 3)

No.

(Hex.)

Name

Description

Default

(Range)

F1-04

(0383)

Speed Deviation Detection Select

Sets the method to stop the motor or let the motor continue operating when the drive detects dEv [Speed Deviation].

(0 - 3)

When the difference between the frequency reference and the motor speed is more than the value set in F1-10 [Speed Deviation Detection Level] for longer than the time set in F1-11 [Speed Deviation Detect DelayTime], the drive will detect dEv.

0
Ramp to Stop: The drive ramps the motor to stop in the deceleration time. Fault relay output terminal MA-MC turns ON, and MB-MC turns OFF.
1
Coast to Stop: The output turns off and the motor coasts to stop. Fault relay output terminal MA-MC turns ON, and MB-MC turns OFF.
2
Fast Stop (Use C1-09): The drive stops the motor in the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal MA-MC turns ON, and MB-MC turns OFF.
3
Alarm Only: The keypad shows dEv and the drive continues operation. Only use this setting in special conditions to prevent damage to the motor and machinery. The output terminal set for Alarm [H2-01 to H2-04 = 10] activates.