REPLACEMENT OF A PULSECODER
IN A F10/11/12/15 CONTROL.
The method is for AC Servo motors model Types 0,5,10,20,40,50,60,70 and L series. It is
possible to separate and exchange the pulsecoder in model types
1-0 AND 2-0 ,
The pulsecoder in models 3-0,4-0 AND 5-0 Cannot be replaced because it is directly assembled onto the motor.
REMOVAL OF A PULSECODER.
- Remove the red endcap of the motor.
- Look for a small line on one of the three mounting tabs. It should be aligned with a mark on the endbell of the motor if not , Please make one (Never remove the mounting tab bracket from a pulsecoder)
- Remove the rubber cap on the back of the pulse coder.
- Remove the allen head screw from the inside of the pulsecoder.
- Remove the three mounting screws
- Remove the pulsecoder
- If there are two wires on the pulse coder cable that are going to the inside of the motor, cut these wires leaving enough wire to reconnect to the new pulsecoder.
- Remove the four screws that hold the cannon connector to the red endcap. Then remove the small ring holding the connector together.
INSTALLATION OF A NEW PULSECODER.
- Reinstall the connector to the red endcap and connect the overheat wires that are coming out from the inside of the motor.
- Align the coupling of the pulsecoder to the motor shaft
- Reinstall and tighten the allen screw inside the pulsecoder.
- Align the mark on the pulsecoder mounting tab to the mark on the motor. This is very important, this is so that the control knows where the motor rotor shaft position is.
- Reinstall the rubber cap on the back of the pulse coder then put back on the red endcap.
IF AN ABSOLUTE POSITION DETECTOR IS USED, YOU WILL NEED TO RESET THE PULSECODER
MEMORY. THE TWO METHODS ARE LISTED BELOW:
- MANUAL REFERENCE METHOD.
- On the setting page change the machine linear axis Detection units to Metric
- Make parameter 1815 bit 5 a 0 for the axis to be adjusted.
- Turn off/on control .
ALARM “APC ALARM : AXIS NEED ZRN” IS DISPLAYED.
- Reference return the axis. Push reset to clear the alarm
- Return the setting back to Inch.
PARAMETER 1815 BIT 5 IS AUTOMATICALLY CHANGED TO A ONE.
- M.D.I. REFERENCE METHOD (DOGLESS ZERO RETURN)
- Set Parameter 1815 bit 5 to 0 for the axis to be adjusted
- Turn off/on the control
ALARM “APC ALARM : AXIS NEED ZRN” IS DISPLAYED.
- Move the axis to the desired reference point by jog or by the M.P.G.
- Set parameter 1815 bit 5 to a 1
- Turn OFF/ON The control
NOTE:
If a softovertravel alarm occurs You will need to do the following:
For a 10 Control power on the control holding the – and . In N IPL Mode input a 4 for setting then answer NO to the question “CHECK SOFTOVERTRAVEL AT POWER ON ?”.
For a 11/12 control make the stored stroke limit of the axis in question a very large number. Example +99999999.
For a 15 control power on the control while holding the P and Cancel Keys at the same time
POSITION HAS MOVED AND ALL OFFSETS FOR THAT AXIS HAS CHANGED.
THE GRID SHIFT MAY ALSO HAVE TO BE ADJUSTED.
FANUC Series 0- Model C
Confirm device setting and parameter.
Setting screen:
ISO = 1 For FANUC Device.
I/O = 0 Set PRM No. 2 & 552 for stop bits and baudrate.
1 Set PRM No. 12 & 553 for stop bits and baudrate.
2 Set PRM No. 50 & 250 for stop bits and baudrate.
PRM 2, 12, 50 = 1xxxxxx1 (No feed output, 2 stop bits), PRM 552, 553, 250 = 10 (4800)
Additional parameters:
No. 10.4 Protect programs 9000 ~ 9999.
No. 38.7&6 Device type- 10xxxxxx = RS-232
No. 38.3 Keypad type- 1 = Full keypad, 0 = standard keypad
No. 55.1 End code- 1 = ETX, 0 = CR
No. 57.4 LF or LF/CR- 1 = LF/CR, 0 = LF