Parker AC890PX Series, Engineering Reference

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A p p e n d i x D : P r o g r a m m i n g
D-129
AC890PX AC Drive
Parameter Descriptions
TRIP SELECTION PREF: 133.21 Default: 2 Range: See below
Select the trip detection based on hardware and/or software detection:
Enumerated Value : Trip Selection
0 : HARD AND SOFT The trip is based on hardware and software detection.
1 : HARD The trip is only based on hardware detection.
2 : SOFT The trip is only based on software detection.
Hardware Detection :
The trip is issued from the sine and cosine inputs, based on the following nominal values for the resolver :
CARRIER VOLTAGE : 7Vrms
RATIO : 0.5
Software Detection :
The trip is also issued from the sine and cosine inputs. The trigger value used is based on the following formula :
trip level = 0.15 *( CARRIER VOLTAGE * 0.1414 * RATIO * 2.0 )
where
CARRIER VOLTAGE = 7Vrms, RATIO = 0.5 for a standard resolver
0.15 is the trigger value.
RESET LINE COUNT PREF: 133.26 Default: FALSE Range: FALSE / TRUE
If TRUE the LINE COUNT X4 diagnostic is reset.
LINE COUNT X4 PREF: 133.27 Default: 0 Range: _
Diagnostic showing the resolver position with a resolution of 65536 points per resolver division. This diagnostic is set to 0 at power-up and reset
when RESET LINE COUNT is TRUE.