ALE01
Overcurrent |
Cause:
- Short-circuit at drive output (U, V, W).
- Motor wiring error.
- IGBT error (Heat sink overheated).
- Control parameter setting error.
- Control command setting error (unstable input).
Remedy:
- Check wiring connections between drive and motor; repair short-circuits.
- Avoid exposed metal conductors.
- Follow user manual wiring steps to reconnect.
- If IGBT error, contact distributor for assistance.
- Reset parameters to factory default settings.
- Ensure input command frequency is stable; activate filter function.
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ALE02
Overvoltage |
Cause:
- Main circuit voltage has exceeded its maximum allowable value.
- Input power error (Incorrect power input).
Remedy:
- Use voltmeter to check if input voltage falls within rated specification.
- Use correct power supply or stabilizing power.
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ALE03
Undervoltage |
Cause:
- Main circuit voltage is below its minimum specified value.
- No input voltage at main circuit.
- Input power error.
Remedy:
- Check whether the wiring of main circuit input voltage is normal.
- Reconfirm power switch.
- Use correct power supply or serial stabilizing power.
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ALE04
Z Pulse shift |
Cause:
- Encoder is damaged.
- Encoder is loose.
Remedy:
- Check Encoder for damage; repair or replace the motor.
- Examine the Encoder connector; install the motor again.
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ALE05
Regeneration error |
Cause:
- Regenerative resistor is not connected.
- Regenerative switch transistor fault.
- Parameter setting is in error.
Remedy:
- Check wiring and reconnect regenerative resistor.
- Check if regenerative switch transistor is short-circuited (Contact distributor).
- Confirm parameter settings/specs of resistor and reset correctly.
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ALE06
Overload |
Cause:
- Drive exceeded rated load during continuous operation.
- Control system parameter setting is incorrect.
- Accel/Decel time setting is too fast.
- Wiring of drive and encoder is in error.
Remedy:
- Check if drive is overloaded; increase motor capacity or reduce load.
- Adjust gain value of control circuit if mechanical vibration exists.
- Decrease Accel/Decel time setting.
- Check wiring of U, V, W and encoder.
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ALE07
Overspeed |
Cause:
- Speed input command is not stable (too much fluctuation).
- Over-speed parameter setting is defective.
Remedy:
- Use signal detector to check input; activate filter function (P1-06, P1-07, P1-08).
- Check if over-speed parameter is too low; correctly set P2-34.
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ALE08
Abnormal pulse control command |
Cause:
- Pulse command frequency is higher than rated input frequency.
Remedy:
- Use pulse frequency detector to measure input.
- Correctly set the input pulse frequency.
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ALE09
Excessive deviation |
Cause:
- Maximum deviation parameter setting is too small.
- Gain value is too small.
- Torque limit is too low.
- There is an overload.
Remedy:
- Increase the parameter setting value of P2-35.
- Correctly adjust gain value.
- Correctly adjust torque limit value.
- Reduce external applied load or re-estimate motor capacity.
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ALE10
Watch dog execution time out |
Cause:
- Watch dog execution error.
Remedy:
- Check and reset the power supply.
- If abnormal conditions persist, contact distributor/Delta.
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ALE11
Encoder error (Position detector fault) |
Cause:
- The wiring of encoder is in error.
- Encoder is loose.
- The wiring of encoder is defective (connections not tight).
- Encoder is damaged.
Remedy:
- Check if all wiring is correct per user manual.
- Examine encoder connector; install motor again.
- Conduct wiring again.
- Repair or replace the motor.
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ALE12
Adjustment error |
Cause:
- The setting value of drift adjustment has exceeded its maximum allowable value.
Remedy:
- Remove CN1 wiring.
- Execute drift adjustment again (Set P2-08 to 20, then P4-10 to 5).
- If error does not clear, contact distributor.
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ALE13
Emergency stop activated |
Cause:
- Emergency stop switch is activated.
Remedy:
- Check switch status; activate/release emergency stop switch.
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ALE14
Reverse (CWL) limit switch error |
Cause:
- Reverse limit switch is activated.
- Servo system is not stable.
Remedy:
- Check switch status; activate/release reverse limit switch.
- Check control parameter settings and load inertia.
- Modify parameter setting and re-estimate motor capacity.
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ALE15
Forward (CCWL) limit switch error |
Cause:
- Forward limit switch is activated.
- Servo system is not stable.
Remedy:
- Check switch status; activate/release forward limit switch.
- Check control parameter settings and load inertia.
- Modify parameter setting and re-estimate motor capacity.
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ALE16
IGBT temperature error |
Cause:
- The drive has exceeded its rated load (overload or high motor current).
- Short-circuit at drive output.
Remedy:
- Increase motor capacity or reduce load.
- Check the drive input wiring; ensure all wiring is correct.
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ALE17
Memory error |
Cause:
- Data error in Memory read-out / write-in.
Remedy:
- Reset parameter or power supply.
- If error persists, contact distributor.
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ALE18
DSP communication error |
Cause:
- Control power is in error.
Remedy:
- Check and reset control power.
- If error persists, contact distributor.
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ALE19
Serial communication error |
Cause:
- Communication parameter setting is defective.
- Communication address is incorrect.
- Communication value is incorrect.
Remedy:
- Correctly set parameter settings.
- Correctly set communication address.
- Correctly set communication value.
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ALE20
Serial communication time out |
Cause:
- Setting value in time out parameter is not correct.
- Not receiving communication command for a long time (cable loose/broken).
Remedy:
- Correctly set P3-07.
- Tighten communication cable; ensure cable is not damaged.
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ALE21
Command write-in error |
Cause:
- Control power is in error.
Remedy:
- Check and reset control power.
- If error persists, contact distributor.
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ALE22
Input power phase loss |
Cause:
- Control power supply is in error (Loose cable or phase loss).
Remedy:
- Check power cable and connections of R, S, T.
- If fault persists with correct 3-phase connection, contact distributor.
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ALE23
Pre-overload warning |
Cause:
- The drive is going to overload.
Remedy:
- Check load condition (refer to ALE06).
- Check if P1-56 is too small; set P1-56 to 100 and above.
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ALE96
The frequency of the entered parameter is abnormal |
Cause:
- The frequency of the entered parameter is abnormal (over 500 times per hour).
Remedy:
- Every time power turns on, set P2-30 to 5 first before entering the high-frequency parameter.
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ALE97
Internal command execution time out |
Cause:
- An error occurs when internal command is executing.
Remedy:
- Check and reset control power.
- If error persists, contact distributor.
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ALE98
DSP communication error |
Cause:
- Maybe the hardware is damaged.
Remedy:
- Check and reset control power.
- If error persists, contact distributor.
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ALE99
DSP communication error |
Cause:
- Maybe the hardware is damaged.
Remedy:
- Check and reset control power.
- If error persists, contact distributor.
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