10/11/12/15 CONTROLS:
- On the setting page change the machine to metric mode.
Make the value in the grid shift parameter 1850 of the axis to be adjusted to equal zero
- Power off/on the control
- Reference return the axis and orgin the position display
- Determine how far off the zero point is from where you want it. Do this by moving the axis with the MPG to where you want the axis to be at reference return and looking at the machine positon display. This is the value to input into the grid shift parameter 1850.
NOTE:
DEPENDING ON HOW THE AXIS MOTOR IS MOUNTED TO THE BALL SCREW, IT IS USUALLY NECESSARY TO CHANGE THE GRID SHIFT DATA FROM A POSITIVE VALUE TO A NEGATIVE VALUE OR FROM A NEGATIVE VALUE TO A POSITIVE VALUE. FOR X-AXIS IN A LATHE MACHINE THE VALUE MAY HAVE TO BE MULTIPLIED
BY 2 FOR DIAMETER PROGRAMMING. IDEALLY THE GRID SHIFT DATA SHOULD BE ABOUT HALF THAT OF THE
REFERENCE COUNTER CAPACITY (PARAMETER 1816). VISUALLY CHECK THAT THE DECEL SWITCH DOG MOVES COMPLETELY OFF THE SWITCH. THESE STEPS WILL HELP INSURE THAT THE AXIS DOESN’T JUMP GRID INTERMITTENTLY. IF THIS CANNOT BE ACCOMPLISHED, A PHYSICAL ADJUSTMENT MAY BE NECESSARY
BY EITHER REMOVING THE PULSE CODER AND ROTATING IT’S SHAFT 180 DEGREES (BE SURE TO ALIGN THE MARKS ON THE MOTOR ENDBELL AND THE PULSE CODER MOUNTING TAB) OR BY ADJUSTING THE DECEL SWITCH DOG. IN CASE OF A SOFTOVERTRAVEL ALARM WHILE DOING THIS ADJUSTMENT, FOR A F10 CONTROL IN IPL MODE INPUT A “4” FOR SETTING. THEN ANSWER NO TO THE QUESTION “CHECK SOFT OVERTRAVEL AT POWER ON?” FOR A F11/12 CONTROL , MAKE THE STORED STROKE LIMIT OF THE AXIS IN QUESTION A VERY LARGE NUMBER + – 99999999 (PARAMETERS 5220-5224). FOR F15/16/18 CONTROLS POWER ON THE CONTROL WHILE HOLDING IN THE “P” AND CANCEL” KEYS AT THE SAME TIME. FOR MACHINES USING ABSOLUTE PULSE CODERS. ONCE THE GRID SHIFT IS
SET, PARAMETER 1815 BIT 4 SHOULD BE MADE “0” THEN MANUAL REFERENCE RETURN THE AXIS AGAIN ( FOR MACHINES WITH METRIC BALLSCREWS THE “SETTING PAGE” SHOULD BE SET “INPUT UNIT = MM BEFORE MANUAL REFERENCE RETURN IS PERFORMED.)
GRID SHIFT ADJUSTMENT
F0 CONTROL:
NOTE: IT IS NECESSARY TO CONSULT THE MAINTENANCE MANUAL TO DETERMINE WHICH PARAMETER TO USE FOR THE AXIS IN QUESTION AND TO DETERMINE PARAMETER VALUES.
- CHANGE THE SETTING PAGE SO THAT THE MACHINE IS IN METRIC MODE. MAKE THE VALUE IN THE GRID SHIFT PARAMETER OF THE AXIS TO BE ADJUSTED EQUAL ZERO. PARAMETER 508-510.
- POWER OFF/ON THE CONTROL.
- REFERENCE RETURNS THE AXIS AND ORIGIN THE POSITION DISPLAY.
- DETERMINE HOW FAR OFF THE ZERO RETURN POINT IS FROM WHERE YOU WANT IT. DO THIS BY MOVING THE AXIS WITH THE HAND WHEEL (MPG) TO WHERE YOU WANT THE AXIS TO BE AT REFERENCE RETURN AND LOOKING AT THE MACHINE POSITION DISPLAY. THIS IS THE VALUE TO BE INPUT INTO THE GRID SHIFT PARAMETER. PARAMETERS 508-510.
NOTE:
DEPENDING ON HOW THE AXIS MOTOR IS MOUNTED TO THE BALL SCREW, IT IS USUALLY NECESSARY TO CHANGE THE GRID SHIFT DATA FROM A POSITIVE VALUE TO A NEGATIVE VALUE OR FROM A NEGATIVE VALUE TO A POSITIVE VALUE. FOR X-AXIS IN A LATHE MACHINE THE VALUE MAY HAVE TO BE MULTIPLIED BY 2 FOR DIAMETER PROGRAMMING. IDEALLY THE GRID SHIFT DATA SHOULD BE ABOUT HALF THAT OF THE REFERENCE COUNTER CAPACITY (PARAMETER 004-007). VISUALLY CHECK
THAT THE DECEL SWITCH DOG MOVES COMPLETELY OFF THE SWITCH. THESE STEPS WILL HELP INSURE THAT THE AXIS DOESN’T JUMP GRID INTERMITTENTLY. IF THIS CANNOT BE ACCOMPLISHED, A PHYSICAL ADJUSTMENT MAY BE NECESSARY BY EITHER REMOVING THE PULSE CODER AND ROTATING IT’S SHAFT 180 DEGREES (BE SURE TO ALIGN THE MARKS ON THE MOTOR ENDBELL AND THE PULSE CODER MOUNTING TAB) OR BY ADJUSTING THE DECEL SWITCH DOG.
IN CASE OF A SOFTOVERTRAVEL ALARM WHILE DOING THIS ADJUSTMENT, POWER ON THE CONTROL WHILE HOLDING IN THE “P” AND “CANCEL” KEYS AT THE SAME TIME.
FOR MACHINES USING ABSOLUTE PULSE CODERS. ONCE THE GRID SHIFT IS SET, PARAMETER 022 AND THE BIT CORRESPONDING TO WHICH AXIS IS BEING ADJUSTED, SHOULD BE MADE “0” THEN MANUAL REFERENCE RETURN THE AXIS AGAIN. MACHINES WITH METRIC BALLSCREWS THE “SETTING PAGE” SHOULD BE SET “INPUT UNIT=MM”, BEFORE MANUAL REFERENCE RETURN IS PERFORMED.
F6 CONTROL:
1.On the setting page change the machine to metric mode. Make the value in the Grid shift parameter of the axis to be adjusted equal zero parameter 82- 85.
2.Power off/ on the control
3.Reference return the axis and orgin the positon display.
4.Determine how far off the zero return point is from where you want it. Do this by moving the axis with the MPG to where you want the axis to be at reference return and look at the machine position display This is the value to be input into the grid shift parameter Parameters 82-85.
NOTE:
DEPENDING ON HOW THE AXIS MOTOR IS MOUNTED TO THE BALL SCREW, IT IS USUALLY NECESSARY TO CHANGE THE GRID SHIFT DATA FROM A POSITIVE VALUE TO A NEGATIVE VALUE OR FROM A NEGATIVE VALUE TO A POSITIVE VALUE. ALSO, FOR X-AXIS IN A LATHE MACHINE THE VALUE MAY HAVE TO BE MULTIPLIED BY 2 FOR DIAMETER PROGRAMMING.
IDEALLY THE GRID SHIFT DATA SHOULD BE ABOUT HALF THAT OF THE REFERENCE COUNTER CAPACITY (PARAMETERS 14-17). ALSO VISUALLY CHECK THAT THE DECEL SWITCH DOG MOVES COMPLETELY OFF THE SWITCH. THESE STEPS WILL HELP INSURE THAT THE AXIS DOESN’T JUMP GRID INTERMITTENTLY. IF THIS CANNOT BE ACCOMPLISHED, A PHYSICAL ADJUSTMENT MAY BE NECESSARY BY EITHER REMOVING THE PULSE CODER AND ROTATING ITS SHAFT 180 DEGREES OR BY
ADJUSTING THE DECEL SWITCH DOG.
IN CASE OF A SOFTOVERTRAVEL ALARM WHILE DOING THIS ADJUSTMENT, MAKE THE STORED STROKE LIMIT OF THE AXIS IN QUESTION A VERY LARGE NUMBER +-99999999 (PARAMETERS 143-158).
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