Omron R88D-KN series User Manual page 284

9 Servo Parameter Objects
External Feedback Pulse Direction Switching
3326 hex
Setting range 0 to 1
Size 2 bytes (INT16)
• Use this object to change the count direction of the external encoder.
Explanation of Settings
Set value
0 External feedback pulse direction not reversed
1 External feedback pulse direction reversed
• Set the pulse count direction so that relationship between the count direction of the external encoder
and the induced voltage of the motor in each phase is as shown below.
• To check the external encoder count direction, disconnect the motor cable and monitor the Position
actual value (6064 hex) while manually operating the Motor Coil Unit.
Electric angle
U - W (G)
V - U (G)
W - V (G)
*1 The waveform of the induced voltage monitored at the U terminal, with the W terminal connected to GND.
*2 The waveform of the induced voltage monitored at the V terminal, with the U terminal connected to GND.
*3 The waveform of the induced voltage monitored at the W terminal, with the V terminal connected to GND.
Precautions for Correct Use Precautions for Correct Use
Before checking the count direction, be sure to set the Movement Direction Setting (3000 hex) to
1, write the setting to the EEPROM, and turn OFF and then ON the power supply.
External Feedback Pulse Phase-Z Setting
3327 hex
Setting range 0 to 1
Size 2 bytes (INT16)
• Set to enable or disable phase-Z disconnection detection when an external encoder with a 90 phase
difference output is used.
Explanation of Settings
Set value
0 Phase-Z disconnection detection enabled
1 Phase-Z disconnection detection disabled
9-26

Unit
Access
External encoder
count-down direction
0° 180° 360°
V
*1
0
V
*2
0
V
*3
0

Unit
Access
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Default setting 0
RW PDO map
Description
Default setting 0
RW PDO map
Description
csp pp hm
Data attribute R
Not possible.
csp pp hm
Data attribute R
Not possible.