FEC DSP1500 (SAN3) - Manual (Page 115)

PAGE ７－7
enFORCE Operation Manual
7.2.3.2 Home Position Search Explanation
1. Press RAM moves in return direction.
2. CCW Proximity Switch turns off.
3. Press RAM moves in forward direction.
4. CCW Proximity Switch turns on.
5. Motor stops at the first time Z-phase is reached after CCW Proximity Switch turns on.
The number of pulses between steps 4 and 5 will be displayed for a few seconds after the
Home Position Search has been performed.
7.2.3.2 Motor Tuning
If after performing a Home Position Search, the number displayed is out of the 1500~2500
range, the following must be done:
1. Power down the machine and disconnect Power/Resolver cable from motor.
2. Remove the motor by unscrewing the 4 bolts holding it to the gear housing (or brake if
an external brake is used).
3. Rotate the motor shaft. (Display number will change by approximately 1000 for
every 90  turned)
**If using a motor with an internal brake, apply 24V across brake leads to
disengage before adjusting.
4. Bolt motor back onto gear housing.
5. Connect Power/Resolver Cable to motor and power up machine.
6. Perform a “Home Position Search” and note the number that appears on the display
for a few seconds after the search has been performed.
7. If this number is still out of the 1500~2500 range, perform steps 1 through 6 again.
If the displayed number is excessively out of range (<1000 or >3000) adjustment can be made
by moving the CCW (return) proximity switch.
⑤
Z
②
③
④ ①
4096 0
1000 3000
CCW
LMT
OFF
ON
①
②
③
④
⑤
Chapter 7: Maintenance & Inspection