Yaskawa GPD515C-ZZZZ-CS104 - Manual (Page 6)

Yaskawa Electric America Inc-www.drives.com
02Y00025-0526 Sheet 6 of 9
Date: 09/19/00
For GPD 515/G5
Adjustable Frequency Drives
4.3 New Program Parameters
PG Channel
P1-01= 1
P2-01 PG Channel Q Q Q Q
Setting Range 1 or 2
Factory Default: 1
Either channel 1 or 2 may be used for positioning. Set this for the channel that is connected to the positioning encoder.
When a PG-X2 option card is used this setting must be 1. Channel 2 is only available with a PG-W2 option card.
Spindle PPR
P1-02= 1024 PPR
P1-02 Spindle Encoder PPR Q Q Q Q
Setting Range: 1 to 32767 Pulses per revolution
Factory Default: 1024 Pulses per revolution
Enter the pulses per revolution rating of the positioning encoder here.
Orient Offset
P1-03= 0
P1-03 Orient offset distance Q Q Q Q
Setting Range: 0 to 32767
Factory Default: 0
This parameter contains the number of quadrature counts offset past the marker that the shaft will travel before stopping.
This is the Orient position. When this value is 0 the shaft will stop at the marker. The desired value may be found by
running the drive and initiating the Orient command. When the drive stops remove the run input. The shaft should turn
freely. Rotate the shaft to the desired position. Read the value of U1-50 (Marker Offset) and enter it here.
The value of U1-50 is a rolling counter ranging from 0 to the number of quadrature counts per revolution. The direction of
rotation is irrelevant. The value indicates a relative position to the marker and is the same in either direction.
This value may also be used to add counts to the positioning algorithm. Adding the number of positioning encoder
quadrature counts per revolution increases the stopping distance by one revolution.