WEG MMW03-CH, Configuration Manual

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Indicators L1, L2 and L3
1) L1, L2, L3 flashing simultaneously and very
slowly (1 per second):
• Error in the phase sequence - voltage;
2) None/all of L1, L2, L3 flashing slowly (1 for
0.5 second):
• Voltage loss in one or all connections
3) None/all of L1, L2, L3 flashing slowly (1 for
0.2 second):
• Current loss in one or all connections;