4 - 6
4. OPERATION AND FUNCTIONS
4.1.6 Confirmation of load side encoder position data
Check the load side encoder mounting and parameter settings for any problems.
POINT
Depending on the check items, the Servo Configuration software may be
used.
Refer to section 4.6 for the data displayed on the Servo Configuration
software.
When checking the following items, the fully closed loop control mode must be set. For the setting of control
mode, refer to section 4.1.2.
No. Check
item
Checking
method/Description
1
Read of load side encoder position data
With the load side encoder in a normal state (mounting, connection,
etc.), the load side cumulative feedback pulses value is counted
normally when the load side encoder is moved.
2
Read of load side encoder scale home position
(reference mark, Z-phase)
With the linear encoder home position (reference mark, Z-phase) of the
load side encoder in a normal condition (mounting, connection, etc.), the
value of load side encoder information 1 is cleared to 0 when the linear
encoder home position (reference mark, Z-phase) is passed through by
moving the load side encoder.
3
Confirmation of load side encoder feedback
direction
(Setting of load side encoder polarity)
Confirm that the directions of the feedback pulse accumulation of motor
encoder (after gear) and the load side feedback pulse accumulation are
matched by moving the device (load side encoder) manually in the servo
off status. If mismatched, reverse the polarity.
4
Setting of load side encoder electronic gear
When the servo motor and load side encoder operate synchronously,
the motor side cumulative feedback pulses (after gear) and load side
cumulative feedback pulses are matched and increased.
If mismatched, review the setting of fully closed loop control feedback
electronic gear (parameter No.PE04, PE05, PE34, PE35) with the
following method.
1) Check the motor side cumulative feedback pulses (before gear).
2) Check the load side cumulative feedback pulses.
3) Check that the ratio of above 1) and 2) has been that of the feedback
electronic gear.
Servo motor
Linear
encoder
Motor side feedback pulse
accumulation (after gear)
3) Electronic
gear
2) Load side feedback
pulse accumulation
Command
1) Motor side feedback pulse
accumulation (before gear)
Summary of Contents for MR-J3-B-RJ006
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Page 19: ...4 MEMO ...
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Page 119: ...4 22 4 OPERATION AND FUNCTIONS MEMO ...
Page 145: ...6 6 6 TROUBLESHOOTING MEMO ...
Page 155: ...7 10 7 OUTLINE DRAWINGS MEMO ...
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