DOCA0193EN-00

Trip History

General Description

The trip history registers describe the last 10 encountered trips. The trip history format corresponds to a series of 10 records saved in a FIFO (first in first out) stack. The last record erases the oldest. Each record is composed of 20 registers describing one trip.

Register 9098 returns the number of faults recorded in the trip history (FIFO).

Register 9099 returns the value of the pointer for the last fault recorded in the trip history.

Example:
If the register 9098 = 10 and the register 9099 = 5, then the last fault recorded is the trip record 5.
In this case, the last but one is the alarm record 4.

NOTE: The contacts must be inspected each time the counter reaches a hundred mark.

Trip Record Number

A read request of 20x(n) registers is necessary to read the last n trip records, where 20 is the number of registers for each trip record.

For example, a read request of 20x3 = 60 registers is necessary to read the last 3 trip records of the trip history:

  • The first 20 registers describe the first trip record.

  • The next 20 registers describe the second trip record.

  • The last 20 registers describe the third trip record.

Address

Register

Description

0x238B–0x239E

9100–9119

Trip record 0

0x239F–0x23B2

9120–9139

Trip record 1

0x23B3–0x23C6

9140–9159

Trip record 2

0x23C7–0x23DA

9160–9179

Trip record 3

0x23DB–0x23EE

9180–9199

Trip record 4

0x23EF–0x2402

9200–9219

Trip record 5

0x2403–0x2416

9220–9239

Trip record 6

0x2417–0x242A

9240–9259

Trip record 7

0x242B–0x243E

9260–9279

Trip record 8

0x243F–0x2452

9280–9299

Trip record 9

Trip Record

A read request of 20 registers is necessary to read a trip record.

The order and the description of the trip record registers are the same as that of the trip record 0:

Address

Register

RW

X

Unit

Type

Range

Description

0x238B–0x238E

9100–9103

R

XDATE

Trip date

0x238F

9104

R

INT16U

1000–1030

Trip code

0x2390–0x239E

9105–9119

Reserved

Trip Codes

Trip Code

Description

1000 (0x03E8)

Trip due to long-time protection Ir

1001 (0x03E9)

Trip due to short-time protection Isd

1002 (0x03EA)

Trip due to instantaneous protection Ii

1003 (0x03EB)

Trip due to ground-fault protection Ig

1004 (0x03EC)

Reserved

1005 (0x03ED)

Trip due to integrated instantaneous protection I >>

1006–1007 (0x03EE–0x03EF)

Reserved

1010–1015 (0x03F2–0x03F7)

Reserved

1016 (0x3F8)

Current unbalance

1017 (0x3F9)

I1 maximum demand

1018 (0x3FA)

I2 maximum demand

1019 (0x3FB)

I3 maximum demand

1020 (0x3FC)

IN maximum demand

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