25501@vector-8600mtmedium

Tri-Stepper Over Current

electrical

Description

Tri-stepper current is too high for THREE Seconds, and the unit alarms only and powers off the affected steppers until good power returns.

Activation Conditions

The tri-stepper current is reported to be too high (indicated by Stepper Output Voltage < 5V) for THREE Seconds as timed at stepper board.

Unit Behavior

Engine and Electric Operation: Alarm only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are reenabled.

Reset Conditions

10 seconds of good current range reported from all steppers.

Corrective Actions

1. Check Wires - Check wiring to stepper valves to MSM. Verify there is no physical damage to harness, and no damage, moisture or corrosion in connectors. 2. Check Power - Check input voltage at 2MSM22. Verify battery power.