Why does the R1 relay not change state on the ATS48 Softstart?
Issue:
R1 relay not changing state on the ATS48
Product Line:
Altistart 48, ATS48
Environment:
All models and serial numbers
Cause:
Programming or other conditions.
Resolution:
The R1 relay can be programmed in the IO menu, parameter r1, as a fault relay or an isolation relay.
If r1 = r1F, fault relay, at powerup it will close to indicate no fault. At a fault condition, it will open. r1F is the default setting for the R1 relay.
If r1 = r1I, isolation relay, it will close only when a run command is active. It is generally used to control an isolation contactor that feeds main power to the ATS48.
Notethat if the Automatic Restart, ArS in the PrO menu, is set to ON, the fault relay opening at fault will be delayed until the unit has gone through the automatic restart phase and fails to restart.
發佈於: 施耐德電機Taiwan
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