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YASKAWA
SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Functions Ignored by Emergency Override
When the drive is in factory default setting, Emergency Override ignores these digital inputs:
•
Drive Enable
•
Drive Enable 2
•
Customer Safeties
•
BAS Interlock
The drive will give priority to these inputs over Emergency Override when you set
S6-08 [EMOVR Drive Enable
Input Mode]
,
S6-16 [EMOVR Customer Safety Mode]
, or
S6-17 [EMOVR BAS Interlock Mode]
correctly.
Table 5.63 Emergency Override Behaviors of each MFDI State and Parameter Setting
H1-xx
[MFDI Function Selection]
MFDI State
Parameter Setting
EMOV Behavior
6A [Drive Enable]
OFF
S6-08 = 0 [Drive Enable Status Ignored]
Enabled
ON
Enabled
OFF
S6-08 = 1 [EMOVRun Only When Drive Disabled]
Enabled
ON
Disabled
70 [Drive Enable 2]
OFF
S6-08 = 0 [Drive Enable Status Ignored]
Enabled
ON
Enabled
OFF
S6-08 = 1 [EMOVRun Only When Drive Disabled]
Enabled
ON
Disabled
B1 [Customer Safeties]
OFF
S6-16 = 0 [Customer Safety Ignored]
Enabled
ON
Enabled
OFF
S6-16 = 1 [EMOVRun Only When Safety OK]
Disabled
ON
Enabled
OFF
S6-16 = 2 [EMOVRun Only When Safety NOT OK]
Enabled
ON
Disabled
B2 [BAS Interlock]
OFF
S6-17 = 0 [BAS Interlock Ignored]
Enabled
ON
Enabled
OFF
S6-17 = 1 [EMOVRun Only When Interlock OK]
Disabled
ON
Enabled
OFF
S6-17 = 2 [EMOVRun When Interlock NOT OK]
Enabled
ON
Disabled
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.
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