E04
Over-current (Other Conditions)
Omron · MX2 Inverter
What does E04 mean?
This fault indicates an overcurrent condition that occurred under operating circumstances other than constant speed, acceleration, or deceleration. This general overcurrent trip mechanism acts as a catch-all for various abnormal current events, protecting the inverter from sustained high current levels.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Check for sudden load changes or external disturbances that might cause brief, excessive current draws.
- 4
Review all V/f characteristics settings (A044/A244) and torque boost settings (A041/A241) to ensure optimal motor control for all conditions.
- 5
Consult system logs for other simultaneous warnings or events that could pinpoint the underlying cause.
Source: Omron MX2 Inverter
View Official PDF