Parker 890CS - PHASE INCH

Programming
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D Page D-79
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PHASE INCH
SETUP::PHASE CONTROL::PHASE INCH
CLOSED-LOOP VEC Motor Control Mode only.
Used with the external registration controller to advance/retard the Load reference position with respect to the Master position.
Parameter Descriptions
ADVANCE
PREF: 108.01 Default: FALSE Range: FALSE / TRUE
Command to Inch the load forwards. While TRUE, counts are added to the error calculator at a rate given by RATE. Note: if
both ADVANCE and RETARD are TRUE then no action is taken.
RETARD
PREF: 108.02 Default: FALSE Range: FALSE / TRUE
Command to Inch the load backwards. While TRUE, counts are subtracted from the error calculator at a rate given by RATE.
RESET
PREF: 108.09 Default: FALSE Range: FALSE / TRUE
This parameter, when TRUE, resets the Inch Offset to zero. The block may only be reset while the position loop is not
operating.
RATE
PREF: 108.03 Default: 0.1000 Range: 0.0001 to 30.0000
Speed of the Inch in load rev/s and the rate at which counts are added to the error calculator. A rate of 0.05 with a system
scaled in revolutions would cause the drive to advance at a rate of 0.05 revolutions a second with respect to the master.
RATE SCALE
PREF: 108.08 Default: 1.000 Range: 0.001 to 30.000
Gain applied to Rate to allow fine control of Inch Rate. This allows fine control over the inch rate by scaling the value of
RATE. Actual Rate = RATE x RATE SCALE
OFFSET
PREF: 108.10 Default: —.xxxx Range: —.xxxx
This diagnostic shows the position offset generated by the block (1.0 = 1 load mechanical revolution). This output is persistent.
ACTIVE
PREF: 108.04 Default: FALSE Range: FALSE / TRUE
This diagnostic display True while Advance or Retard actions are active.