YASKAWA HV600 Manual page 452

2.12 S: Special Applications
Table 2.77 Emergency Override Behaviors of each MFDI State and Parameter Setting
H1-xx
[MFDI Function Selection]
6A [Drive Enable]
70 [Drive Enable 2]
B1 [Customer Safeties]
B2 [BAS Interlock]
Note:
When you program more than one input to the drive, for example Drive Enable and Customer Safeties, all the inputs must align with the
conditions for Emergency Override to take effect.
Emergency Override Speed Command Operation
When Emergency Override is active, S6-02 [Emergency Override Reference Selection] sets the frequency reference
source:
• When S6-02 = 0 [Use S6-01 Reference]:
The drive will operate at the speed set in S6-01 [Emergency Override Speed].
• When S6-02 = 1 [Use Frequency Reference]:
The drive will use the currently selected AUTO mode frequency reference set in b1-01 [Frequency Reference
Selection 1] as the run speed.
When S6-02 = 0 or 1, MEMOBUS register 3A94H can override the Emergency Override Speed when you set register
3A93H bit 3 to ON.
Note:
The drive will not memorize MEMOBUS registers 3A93H and 3A94H while you re-energize the drive.
Emergency Override PID Mode Operation
Emergency Override will operate in PID mode and maintain the setpoint when S6-02 = 2 [System PID Mode] or S6-
02 = 3 [Independent PID Mode].
• When S6-02 = 2:
Emergency Override uses the system units set in b5-38 [PID User Unit Display Scaling], b5-39 [PID User Unit
Display Digits], and b5-46 [PID Unit Display Selection] and the normally selected PID Feedback and PID Setpoint.
If it is necessary to override the PID Feedback and the PID Setpoint, set an analog input to H3-xx = 2B [Emergency
Override PID Feedback] for the PID Feedback and H3-xx = 2C [Emergency Override PID Setpoint] for the PID
Setpoint.
• When S6-02 =3:
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MFDI State
OFF
S6-08 = 0 [Drive Enable Status Ignored]
ON
OFF
S6-08 = 1 [EMOVRun Only When Drive Disabled]
ON
OFF
S6-08 = 0 [Drive Enable Status Ignored]
ON
OFF
S6-08 = 1 [EMOVRun Only When Drive Disabled]
ON
OFF
S6-16 = 0 [Customer Safety Ignored]
ON
OFF
S6-16 = 1 [EMOVRun Only When Safety OK]
ON
OFF
S6-16 = 2 [EMOVRun Only When Safety NOT OK]
ON
OFF
S6-17 = 0 [BAS Interlock Ignored]
ON
OFF
S6-17 = 1 [EMOVRun Only When Interlock OK]
ON
OFF
S6-17 = 2 [EMOVRun When Interlock NOT OK]
ON
Parameter Setting
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
EMOV Behavior
Enabled
Enabled
Enabled
Disabled
Enabled
Enabled
Enabled
Disabled
Enabled
Enabled
Disabled
Enabled
Enabled
Disabled
Enabled
Enabled
Disabled
Enabled
Enabled
Disabled