Mitsubishi FR-A Series- FR-A800, FR-A770/A701, FR-A700, FR-A800-E, FR-A741 Drive
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Apr 01, 2024 4:23 am
Cause : Maintenance signal output comes when the cumulative energization time of the inverter has reached a given time. When the setting of Pr. 504 Maintenance timer alarm output set time is the initial value (Pr. 504 = "9999"), this protective function does not function.
- The Pr. 503 Maintenance timer setting is larger than the Pr. 504 Maintenance timer alarm output set time setting.
- Setting "0" in Pr. 503 Maintenance timer erases the signal.
