Yaskawa G5 Motion Control - Manual (Page 15)

Motion Control
Date: 08/18/04, Rev: 04-08 Page 15 of 22 TM.G5SW.020
4.4 P3 Group Parameters
P3-01 Position Encoder
Setting Function Description
0
Pg-X2 or PG-W2
Port 1
Machine position feedback uses the motor feedback coming in on Channel 1 of
the PG-X2 or a PG-W2 encoder feedback card.
1 PG-W2 Port 2
Machine position feedback uses a machine mounted feedback encoder coming
in on Channel 2 of the PG-W2 encoder feedback card.
2
DI-16 Absolute
Encoder
Machine position feedback uses a machine mounted absolute feedback encoder
coming in on 18 bits of the DI-16H2 card.
P3-02 Position Encoder Numerator
This is used to set the ratio between the machine-mounted encoder and the motor mounted encoder.
Example:
Motor encoder is 1024 ppr
Position encoder 256 PPR is mounted to output of 20:1 gearbox
So (1024 * 20) / 256 = 80
For every encoder count on the machine, you get 80 counts on the motor.
Program P3-02 to 80 and P3-03 to 1.
P3-03 Position Encoder Denominator
This is used to set the ratio between the machine-mounted encoder and the motor mounted encoder. See example
above.
Setting Range: 0 to 2
Factory Default: 0
Modbus Address: 05a0 Hex
Position Encdr
PGX-W Port #1
Setting Range: 0-65535
Factory Default: 1
Modbus Address: 05a1 Hex
Pos.encdr. NUM
P3-02 = 1
Setting Range: 0-65535
Factory Default: 1
Modbus Address: 05a2 Hex
Pos.encdr. Den
P3-03 = 1