AL 01 : Under-voltage
The main circuit voltage is below its minimum specified value. (190Vac)
Use multi-meter to check whether the input voltage is within the specified limit. If it can not be solved, there may be failure inside the Drive.

AL 02 : Over-voltage (Regeneration err)
1. The main circuit voltage is exceeded maximum allowable value. (410V)
2. Regeneration voltage is too high.
1. Use multi-meter to check whether the input voltage is within the specified limit.
2. Check the Parameter Cn012 if it is setting correctly.
3. If this alarm appears during operation.
Extend acc/deceleration time or reduce load ratio in the permitted range. Otherwise, an external regeneration resistor is needed. (Please contact your supplier for assistance.)

AL 03 : Motor Over-load
The drive has exceeded its rated load during continuous operation. When the loading is equal to 2 times of rated loading, alarm occurs within 10sec.
1. Check connection for Motor terminal s (U,V,W) and Encoder.
2. Adjust the Drive gain, If gain is not correctly adjusted, it would cause motor vibration and large current will lead to motor over load.
3. Extend acc/deceleration time or reduce load ratio in the permitted range.

AL 04 : Drive Over-current
Drive main circuit Over current or Transistor err or.
1. Check connection of the motor cable (U,V,W) and encoder.
Check power cable connection. Refer to the diagram in Chapter 2.
2. Turn off the power, and turn on again after 30 min. If the alarm still exists, there may be power module malfunction or noise consider the drive for test and repair.

AL 05 : Encoder ABZ phase signal err
Motor’s encoder failure or encoder connection problem.
1. Check the motor’s encoder connections.
2. Check the encoder if short circuit, poor solder joints or break.
3. Check the encoder signal terminals CN2-1 and CN2-2. ( power cable 5v)

AL 06 :  Encoder UVW phase signal err
Motor’s encoder failure or encoder connection problem.
1. Check the motor’s encoder connections.
2. Check the encoder if short circuit, poor solder joints or break.
3. Check the encoder signal terminals CN2-1 and CN2-2. ( power cable 5v)

AL 07 : Multi-function contact setting Input/output contacts function setting err or.
1. Check parameters Hn601~Hn606, trigger level selected by 2nd digit of Hn 601 to 606 should be the same for all inputs DI-1~DI-6.
2.Check parameters setting of Hn613 ~ Hn615 should NOT be the same for outputs contact DO-1~DO-3.

AL 08 : Memory err or
Parameter write-in err
Disconnect all command cable then re-cycle the power. If alarm still occurs, it means the Drive was failure.

AL 09 : Emergency Stop
When the input contact point EMC is activated.
1. Disable Emergency stop signal input.
2. Internal mal-function.
Ensure that all connection are correct, refer to Chapter 2 Power and motor circuit diagrams connection.
Control wiring diagrams.

AL 10 : Motor over-current
Motor current is 4 times greater than rated current.
1.Check if the motor wiring U,V,W) and encoder wiring correct or not.
2.Internal interference and mal-function. Ensure that all connection are correct ,refer to Chapter 2 Power and motor circuit diagrams.

AL 11 : Position err 
The deviation between Pulse command and encoder feedback ( position AL or) is greater than the setting of Pn308 or Pn309.
1. Increase the position loop gain (Pn310 and Pn311) setting value.
2. Increase in position tolerance value by (Pn307) for a better motor response.
3. Extend the time of ac/deceleration or reduce load inertia in the permitted range.
4. Check if the motor wiring (U,V,W) is correct.

AL 12 : Motor over speed
Motor’s speed is 1.5 times more then motor’s rated speed.
1. Reduce the speed command.
2. Electronic gear ratio is incorrect check and set correctly.
3. Adjust speed loop gains (Sn211 & Sn213) for a better motor response.

AL 13 : CPU ERR  or Control system Mal-function.
Turn off the power. Turn on again after 30min. If AL or alarm still exists, this may be due to external interference.
Refer to the chapter 2 Motor power cable and control signals connections.

AL 14 : Drive disable
When input contacts CCWL & CWL are operated at the same time this alarm occurs.
1. Remove input contact signal CCWL or CWL.
2. Check all input wiring for correct connections.
3. For the selected High /Low logic potential settings refer to Section 5-6-1.

AL 15 : Drive overheat
Power transistor temperature exceed 90°C.
Over-load for a long duration will cause driver overheat, check and reset operation system.

AL 16 : Absolute Encoder Battery Err
Battery module remove or battery voltage is lower than 3.2V
Make sure if battery module is removed, power supply is losing, or battery is power shortage and requires replacing. 

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