Overcurrent

What does 2310 mean?

The drive has detected an excessive current flow to the motor, exceeding its operational limits. This typically indicates an overload condition, mechanical binding, or a short circuit in the motor or cabling, potentially leading to motor or drive damage if left unaddressed.

• Mechanical binding or jam in the driven load, requiring excessive motor torque.
• Motor winding insulation breakdown (phase-to-phase or phase-to-ground short circuit) causing high current draw.
• Drive output IGBT failure or internal power module fault leading to uncontrolled current.
• Incorrect motor parameters (e.g., P99.04, P99.05, P99.06) configured in the drive, resulting in inaccurate current monitoring and protection.
• Rapid acceleration (e.g., P21.02 set too short) exceeding the motor's or drive's instantaneous current limit.

Click steps to track your progress.

1. 1

   1. Disconnect the motor from drive output terminals U, V, W. Measure insulation resistance between each motor phase and ground, and between phases, using a megohmmeter (1000V DC or 500V DC). Resistance should be greater than 5 MOhms.

2. 2

   2. Check for mechanical obstructions, binding, or excessive friction in the driven load by manually rotating or jogging the system (if safe). Verify proper lubrication and alignment.

3. 3

   3. Verify drive motor parameters P99.04 (Rated Motor Voltage), P99.05 (Rated Motor Current), and P99.06 (Rated Motor Frequency) match the motor nameplate exactly.

4. 4

   4. Measure resistance across drive output terminals U-V, V-W, U-W with all power off. Readings should be balanced across all pairs.

5. 5

   5. Increase acceleration time parameter P21.02 (Acceleration Time 1) by 25-50% to reduce the rate of motor current increase during startup.