MH OUV-400, Operation Manual

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Address (Hex) Contents Format Word Access Range & Unit
0557 022DH Integer 1 R
0556 022CH Integer 1 R
0555 022BH Integer 1 R
0554 022AH Integer 1 R
Measured Values:
(*)
(*)
(*)
(*)
OV Relay Status
UV Relay Status
OV Trip Status
UV Trip Status
Legend (*):
Descriptions
Defination
OV and UV
Relay Status
OV and UV
Trip Status
Trip Record
Type of fault
Trip Record (Year)
Trip Record
(Phases)
0: Nil, 1: L1-L2, 2: L2-L3, 4: L3-L1. ( Multiple phase tripping is possible)
If reading is 3 (2+1), it will indicate that L1-L2 and L2-L3 are having fault.
0: Nil, 1: L1-L2, 2: L2-L3, 4: L3-L1, 8: Test
0: Nil
1: L1-L2 UV, 2: L2-L3 UV, 4: L3-L1 UV
16: L1-L2 OV, 32: L2-L3 OV, 64: L3-L1 OV
If reading is 4, it indicates L3-L1 UV trips
If reading is 20 (4+16), it indicates L3-L1 UV and L1-L2 OV
0 - 100 indicates Year 2000 - 2100
0: Nil, 1: L1-L2 UV, 2: L2-L3 UV, 4: L3-L1 UV
16: L1-L2 OV, 32: L2-L3 OV, 64: L3-L1 OV
If reading is 1, it indicates that L1-L2 UV trip is recorded
If reading is 33 (1+32), it indicates L1-L2 UV, L2-L3 OV trip are recorded