I系列485通讯协议
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※ (1) : caution when using Function Code 0x05(WRITE)
1). RESET : 0xFF00, Use only TRIP state
2). CLEAR RESET : 0xFF00, THERMAL MEMORY CLEAR RESET ※2 : Trip CAUSE
0x0000 TRIP_NON
0x0001 TRIP_DEFINITE
0x0002 TRIP_INVERSE
0x0004 TRIP_LOCK
0x0008 TRIP_STALL
0x0010 TRIP_INSTANT
0x0020 TRIP_UNDERCURR
0x0040 TRIP_UNBALANCE
0x0080 TRIP_PHASEFAIL
0x0100 TRIP_REVERSEPHASE
0x0200 TRIP_GROUND_ZCT
0x0400 TRIP_GROUND_NCT
※3 : 3-PHASE Current, Earth Fault Current(NCT), TRIP 3-phase Current
. (TRIP) Current : Ir, Is, It
. Read data : 500 => 0.50A, 1200 => 1.20A,,, 6563 => 6.56A,,,,, 10000 => 10.00A
(TRIP) Current = Read data / 1000
. Earth fault current (NCT)
. Read data : 500 => 500mA(0.5A), 1200 => 1200mA(1.2A), 2345 => 2345mA(2.345A)
Earth fault current(NCT) unit is mA.
# In case DOUBLE WORDS(FLOAT) DATA, Response Data Format is swaped by setting IMP GROUP B's c.S-P : ON or OFF ex) c.S-P : ON => SWAP is applied
Original Data : 0x12345678 ==> Response Data Value : 0x5678, Response Data Value : 0x1234
c.S-P : OFF => SWAP is not applied
Original Data : 0x12345678 ==> Response Data Value : 0x1234, Response Data Value : 0x5678
※4 : Earth Fault Current(ZCT), Trip Earth Fault Current(ZCT)
. Read data : 30,000 => 0.030A, 50,000 => 0.050A,,, 1,000,000 => 1.000A,,,,, 3,000,000 => 3.00A
(TRIP) Current = Read data / 1,000,000
Earth fault current(ZCT) unit is uA.
# In case DOUBLE WORDS(FLOAT) DATA, Response Data Format is swaped by setting IMP GROUP B's c.S-P : ON or OFF ex) c.S-P : ON => SWAP is applied
Original Data : 0x12345678 ==> Response Data Value : 0x5678, Response Data Value : 0x1234
c.S-P : OFF => SWAP is not applied
Original Data : 0x12345678 ==> Response Data Value : 0x1234, Response Data Value : 0x5678
※5 : Run Time
In case Run time(hour) : 1201, Run time(minute) : 10
1201 / 24 = 50.01 => 50 days 1 hour 10 minutes
※6 : Rating current setting
. Data range
. In case 10A tyep, Data range is 5~100 (5 : 0.5A, 10 : 1A, 100 : 10A)
. In case 100A tyep, Data range is 50~1000(50 : 5A, 100 : 10A, 1000 : 100A)
. CT ratio is not applied.
※7 : CT Ratio
. Data range : 0 ~ 201
. Datas mean 0 => 0.25, 1 => 0.5, 2 => 1, 3 => 2,,,,,,,,,,,,,, 201 => 200
※8 : Earth Fault current(ZCT)
. Data ragne : 0 ~ 3000
. Data means 0=>OFF, 30=>30mA(0.03A), 50=>50mA(0.05A), 100=>100mA(0.1A), 1000=>1000mA(1A), 3000=>3000mA(3A) ※9 : Earth fault operating time