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ASDA-A3
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Troubleshooting
AL422 Write-in failed caused by power supply cut-off
2. If the issue persists, send your servo drive back to the distributor or contact
Delta.
How to clear the
alarm?
Cycle power on the servo drive.
AL500 STO function is enabled
Trigger condition
and cause
Safe torque off function (STO) is enabled.
Checking method
and corrective action
Safe torque off function (STO) is enabled. Check why it is enabled.
1. Reset by using DI.ARST (Alarm reset), OD 6040h [Bit 7] (Fault reset), or
How to clear the
alarm?
setting P0.001 to 0.
2. If not using the STO function, plug the short circuit connector into CN10 or
wire to short-circuit the CN10 STO connector. Follow the instructions in
Chapter 3 for the STO wiring.
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AL501 SF1 lost (signal loss or signal error)
Trigger condition Loss of SF1 signal, or SF1 and SF2 signals are not synchronized for more than 1
and cause
second.
Checking method
and corrective action
Make sure the wiring of SF1 is correct.
How to clear the
alarm?
Cycle power on the servo drive. If the alarm cannot be cleared, keep the servo
drive in the safe state and contact the distributor.
AL502 SF2 lost (signal loss or signal error)
Trigger condition Loss of SF2 signal, or SF1 and SF2 signals are not synchronized for more than 1
and cause
second.
Checking method
and corrective action
Make sure the wiring of SF2 is correct.
How to clear the
alarm?
Cycle power on the servo drive. If the alarm cannot be cleared, keep the servo
drive in the safe state and contact the distributor.
AL503 STO self-diagnostic error
Trigger condition An error occurs during STO self-diagnosis, which may be caused by an abnormality
and cause
in the STO circuit.
Checking method
and corrective action
N/A
How to clear the
alarm?
Contact the distributor.
Send Quote Requests to info@automatedpt.com
Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com
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