Why would a ATV61 drive be running ok and then goes to RDY status?
Issue:
ATV61 drive running fine and then changes to RDY status.
Product Line:
ATV61 Drives, Altivar 61
Environment:
Run Command
Cause:
n/a
Resolution:
The ATV61 was running ok and then went to RDY. Needs to check the run command. For 2-wire control. LI1 should have +24v. Can go to 1.2 and select I/O map, and check the status of LI1 or measure LI1 at the terminal card. If it drops low, they are loosing the run command.
Also, for 3-wire control or HMI control, a momentary loss of the safety circuit input on PWR will take status to RDY. Verify the factory jumper on +24-PWR or the safety circuit to PWR. Consider that a 24Vdc voltage sag would have same results. Check 24Vdc circuits for grounding.
ATV61 drive running fine and then changes to RDY status.
Product Line:
ATV61 Drives, Altivar 61
Environment:
Run Command
Cause:
n/a
Resolution:
The ATV61 was running ok and then went to RDY. Needs to check the run command. For 2-wire control. LI1 should have +24v. Can go to 1.2 and select I/O map, and check the status of LI1 or measure LI1 at the terminal card. If it drops low, they are loosing the run command.
Also, for 3-wire control or HMI control, a momentary loss of the safety circuit input on PWR will take status to RDY. Verify the factory jumper on +24-PWR or the safety circuit to PWR. Consider that a 24Vdc voltage sag would have same results. Check 24Vdc circuits for grounding.
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