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(F)
POSITION ERROR FAULT
This fault occurs when the motor is out of position by more than the program
allowable error (default is one motor revolution). The major reason for this fault
occurring is the motor is trying to overcome its torque capability or you are trying
to go too fast with a low voltage AC line. Try the following to prevent this fault.
1.
Program longer ramp times
2.
Check your frictional loading
3.
Check for synthetic oil in the gear reducer to minimize frictional loading at
higher speeds
4.
Read AC line voltage
If the AC line drops to the drive during acceleration then voltage for the
motor isn’t available and a fault will occur. Typical causes for this are
wrong size AC wiring, and insufficient KVA ratings for external
transformers used to power the drive electronics.
Example:
The wire sizing for a DX-780 amplifier is 10 gauge and 40
amps. The amplifier operates on 120 VAC single phase.
(120 VAC) * (40 amps) = 4800 watts or 4.8 KVA
minimum.
The AL wire size for a DX-8200 is 15 AMP. The amplifier
operates on 230 VAC 3 phase. (230 VAC) * (15 AMPS) *
(1.732) = 5,865 watts or about 5 KVA.
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