Omron OMNUC G5 R88M-K series User Manual page 305

Pn327
External Feedback Pulse Phase-Z Setting
Setting
0 to 1
range
 Set to enable or disable the Phase-Z disconnection detection when an external encoder of 90
phase difference output type is used.
Explanation of Set Values
Set
value
0 Phase-Z disconnection detection enabled
1 Phase-Z disconnection detection disabled
Pn328
Internal/External Feedback Pulse Error Counter Overflow Level
Setting
1 to 134217728
range
 Set the allowable difference (feedback pulse error) between the motor (encoder) position and load
(external encoder) position in command units.
Refer to "5-4 Full Closing Control (P.5-9)".
Pn329
Internal/External Feedback Pulse Error Counter Reset
Setting
0 to 100
range
The feedback pulse error is reset every time the motor rotates for the amount set by the Internal/
External Feedback Pulse Error Counter Reset (Pn329). This can be used for purposes where
feedback pulse error accumulates due to slippage.
Refer to "5-4 Full Closing Control (P.5-9)".
Feedback pulse
error value [command unit]
(absolute value)
Excessive
feedback pulse
error setting
 Ensure that an appropriate value is set to the Internal/External Feedback Pulse Error Counter
Reset (Pn329), before you use the feedback pulse error counter reset. When the set value is
extremely small, the protective function may not work to prevent any erroneous operation due to
improper connection of the external encoder.
Precautions for Correct Use
 Provide enough safety measures. This includes to mount limit sensors.
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)

Unit
Unit Command unit
Unit Rotation
Occurrence of excessive
feedback pulse
deviation error
Feedback pulse error reset setting
8-4 Analog Control Parameters
Default
setting
Explanation
Default
16000
setting
Default
setting
Motor rotation
speed [rotation]
Full closing
Data
0 R
attribute
Full closing
Data
C
attribute
Full closing
Data
0 C
attribute
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