Mitsubishi Electric MELDAS 600M Series Instruction Manual page 387

1. Confirming the Operation
1.1 Confirming the axis movement direction
(1) Confirming the axis operation with the handle mode
Each axis is moved in the handle mode, and the movement of the axis corresponding to the
handle rotation direction (+, − ) is confirmed.
When the axis is moved in the opposite direction, the setting in the axis specification parameter
"130034 Ccw" is confirmed, and changed from "0" to "1" or vice versa.
(2) Confirming the movement operation with the JOG mode
The axis is moved in the JOG mode, and the axis operation following the command direction is
confirmed.
(Note 1) If the axis stability is poor when the axis is moved in the handle or JOG mode, first adjust
1.2 Confirming the limit switch operation
(1) Confirming the stroke end operation
1) Turn ON the plus side stroke end limit switch by moving the axis in the plus direction using the
2) Turn ON the minus side stroke end limit switch by moving the axis in the minus direction.
(2) Confirming the reference point return operation
1) Decrease the reference point return speed using the RAPID TRAVERSE OVERRIDE switch.
2) Carry out a reference point return.
3) Confirm that a deceleration stop is carried out once at the near-point dog.
4) After executing step 3), confirm that the movement is toward the reference point.
5) After moving in the reference point return direction and stepping on the dog, confirm that the
6) Confirm whether the axis position is that of the machine reference point when the reference
7) Display the SERVO MONITOR screen of the setting and display unit, and confirm the grid
8) Refer to the section "3. Adjusting the Dog-type Reference Point Return" if the reference point
9) For absolute position detection, refer to the section "ABSOLUTE POSITION SETTING
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the stability of the drive system as shown on the following sections.
handle feed or JOG feed.
• The axis must stop when the limit switch kicks the dog.
• The stroke end alarm must be displayed in the ALARM DIAGNOSIS screen of the setting
and display unit.
• The axis must not move when a plus direction movement command is issued again.
• The axis must move in the minus direction when a minus command is issued.
• The axis must stop when the limit switch kicks the dog.
• The stroke end alarm must be displayed in the ALARM DIAGNOSIS screen of the setting
and display unit.
• The axis must not move when a minus direction movement command is issued again.
• The axis must move in the plus direction when a plus command is issued.
If the reference point return direction differs, the parameter setting is incorrect.
axis reaches the reference point within 10 to 100mm. Also confirm that the reference point
reached signal is output, and the reference point reached lamp of the operation panel is lit.
point reached signal is output.
amount display.
• Confirm that the grid amount is approx. 1/2 of the grid spacing.
position must be changed or adjusted.
SCREEN" in the Instruction Manual.
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CHAPTER 3 MAINTENANCE
1. Confirming the Operation
III – 1