| Display |
Name |
Definition |
Cause |
Action |
| AL.10 |
Under-Voltage |
Power supply
voltage dropped to 160VAC or less. |
1. Power supply voltage is low |
Check the power supply. |
| 2. There was an instantaneous control power failure of 60ms or longer. |
| 3. Shortage of power supply capacity caused the power supply voltage to drop at start, etc. |
| 4. The bus voltage dropped to 200VDC. |
| 5. Faulty parts in the servo amplifier |
Change the servo amplifier. |
| AL.12 |
Memory Error 1 |
RAM, memory fault |
Faulty parts in the servo amplifier |
Change the servo amplifier. |
| AL.13 |
Clock Error |
Printed board fault |
| AL.15 |
Memory Error 2 |
EEP-ROM fault |
1. Faulty parts in the servo amplifier |
Change the servo amplifier. |
| 2. The number of write times to EEP-ROM exceeded 100,000. |
| AL.16 |
Encoder Error 1 |
Communication error
occurred between encoder and servo amplifier. |
1. Encoder connector (CN2) disconnected. |
Connect correctly. |
| 2. Encoder fault |
Change the servo motor. |
| 3. Encoder cable faulty (Wire breakage or shorted) |
Repair or change cable. |
| AL.17 |
Board Error |
CPU/Parts Fault |
1. Faulty parts in the servo amplifier |
Change the servo amplifier. |
| The output terminals U, V, W of the servo amplifier and the input terminals U, V, W of the servo motor are not connected. |
2. The wiring of U, V, W is disconnected or not connected. |
Correctly connect the output terminals U, V, W of the servo amplifier and the input terminals U, V, W of the servo motor. |
| AL.19 |
Memory Error 3 |
ROM memory fault |
Faulty parts in the servo amplifier |
Change the servo amplifier. |
| AL.1A |
Motor Combination
Error |
Wrong combination of servo amplifier and servo motor. |
Wrong combination of servo amplifier and servo motor connected. |
Use correct combination. |
| AL.20 |
Encoder Error 2 |
Communication error occurred between encoder and servo amplifier. |
1. Encoder connector (CN2) disconnected. |
Connect correctly. |
| 2. Encoder fault |
Change the servo motor. |
| 3. Encoder cable faulty (Shorted or broken wire) |
Repair or change cable. |
