Eaton PT 10, Instruction Manual

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41 PT UNIT USER MANUAL
APRIL 2023 www.eaton.com.cn
A.3.10 Primary Status/Secondary Status/Cause
Code Definitions
Table A14. Primary Status Code Definitions
Code Definition
0x01 Open
0x02 Closed
0x03 Tripped
0x04 Alarmed
0x0D Picked-up
Table A15. Secondary Status Code Definitions
Code Definition
0x01 Not applicable
0x03 Test mode
0x07 Powered-up since last trip/alarm reset
0x08 Alarm
Table A16. Cause Code Definitions
Code Definition Code Definition
0x0000 Unknown 0x0001 Normal
0x0003 Instantaneous 0x0005
Instantaneous neutral
over- current
0x000B Over-voltage 0x000C Under-voltage
0x000E Aux-power under voltage 0x000F Over-frequency
0x0010 Under-frequency 0x0011 Current unbalance
0x0012 Voltage unbalance 0x0013 Apparent power factor
0x001A Power demand 0x001B VA demand
0x001E THD 0x001F Operations count
0x0021 Control via communication 0x0025 Coil supervision
0x0028 Current demand 0x0029 Low battery
0x003D Long delay 0x003E Short delay
0x0041 Reverse power 0x0044 Phase sequence
0x004B Making current release 0x004C
Fixed hardware
instantaneous
0x004D Setpoints error 0x004E Over-temperature
0x0050
Long delay neutral
over- current
0x0054 Ground fault
0x0055 Earth fault 0x0071 Calibration
0x0088 Real time clock 0x009A Breaker mechanism fault
0x009E
Short delay neutral
over-current
0x009F Thermal memory alarm
0x00A0 Local test from LCD 0x00A1 High load alarm 2
0x00A2 Ground alarm early warning 0x00A2 Over-temperature alarm
0x07FD Non-volatile memory error 0x07FE Watchdog fault
A.3.11 Exception Codes
When there's error in request or response, trip unit would
respond an exception code.
• If the function code in the query is not supported by trip
unit, exception code 01 is returned in the response, also
used for the unsupported sub-function code in Modbus
diagnostics.
• If the requested data register/ bit address is illegal,
excep-tion code 02 is returned.
• If the data in the query is illegal, exception code 03 is
returned.
• If the trip unit doesn't support the query function,
exception code 04 is returned.
• In certain circumstances, exception code 05(ACK) is
returned.
• If the trip unit can't perform the current request at this
time, a BUSY exception code 06 is returned.
• If the trip unit can't perform the requested action, a NAK
exception code 07 is returned.
• If only a partial register is used in the query, exception
code 132 is returned.
• If the requested event entry doesn't exist, exception
code 135 is returned.
Appendix A - Modbus Communication Port Setting