Fanuc Series 15i 150i
Fanuc Alarm PS200 (GRID SYNCHRONIZATION ERROR)
Although the tool is being fed with 128 or more pulses of positional deviation (DGN3000) in the direction of reference position return, the one–rotation signal is not received at least once, a reference position return is performed.
(1)After the pulse coder or motor has been replaced, the reference positions and machine reference positions will differ from those used before the replacement. Therefore, adjustment and setting are required.
A feedrate for at least 128 pulses of positional deviation is required because, if a lower feedrate is used, the one–rotation signal of the motor may fluctuate, disabling correct position detection.
In parameter No. 1841, a value of less than 128 can be set as the positional deviation with which reference position return is assumed to be possible. (If the setting is 0, 128 is assumed.)