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搜尋常見問題
What can cause the R1 relay contacts on the ATS48 soft starter to be stuck and not open?
Issue:
R1 relay contacts on the ATS48 stuck

Product Line:
Altistart ATS48

Environment:
All

Cause:
R1 contacts appear to be stuck and will not open when the Soft starter is powered down or when the unit faults.

Resolution:
The contacts are not opening because they are welded closed. Check your load that the contacts are feeding.  If they are exceeding the specs in the table below you will need to add an interposing relay.
You can not repair these R contacts so you will need to replaced the main control board on the ATS48 soft stater with part number VX4G481.
The specs for the R1, R2 and R3 relays: Figure 1

` Relay Table
Figure 1

施耐德電機Taiwan

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