Anaheim Stepper MLP070815 Users Guide

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Fault Detection and Fault LED
Short (Solid LED)
This indicates that the driver or motor has a phase shorted or there is a “short” in the motor cable or wiring.
Check the motor and the physical wiring for shorts. If the driver continues to sense shorts after the motor
and wiring are determined to be accurate, then the most likely cause is that the output transistors are bad
and the unit needs to be sent back into the factory for repair. Contact the factory for a RMA# (Return
Materials Authorization Number) to have it returned.
Open (Two Blinks)
This indicates that there is an “open” or intermittent connection in one of the motor wires. Check the motor
and the wiring for opens. Another condition that may cause this type of fault, is when the motor is mis-
wired. This is caused when Phase 1 of the motor is wired with Phase 2 or Phase 4 instead of Phase 3.
Input Voltage Too High (Three Blinks)
This indicates that the input voltage is too high (above 132VAC). Check the input line voltage to see if it is
within the specified range.
Over Temperature (Four Blinks)
This is caused by the internal heat sink reaching a temperature of 80ºC. Make sure proper ventilation and
spacing of drivers is correct or that an additional heat sink is provided so the temperature does not reach
this level.
No Power LED
If power is applied and the power LED fails to light then an internal fuse has blown and the unit needs to
be sent in for repair. Contact customer service at the factory (714-992-6990) for a RMA# (Return Materi-
als Authorization Number) to have it returned. If a fault occurs, reset the fault by activating the ON/OFF (RESET)  Input  for at least 100msec or by
cycling power off for at least 20 seconds. After resetting, try to run the motor again. If the driver continues
to fault, check the conditions listed below.
s k n i l B D E L f o #n o i t i d n o C t l u a F
) d i l o S ( 0t n e r r u C r e v O r o t i u c r i C t r o h S
2n o i t c e n n o C r o t o M g n o r W r o e s a h P r o t o M n e p O
3) C A V 2 3 1 e v o b A ( h g i H o o T e g a t l o V t u p n I
4k n i S t a e H f o e r u t a r e p m e T r e v O 
						

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ANAHEIM AUTOMATION