Eaton PT 10 Instruction Manual page 45

A.3.10 Primary Status/Secondary Status/Cause
Code Definitions
Table A14. Primary Status Code Definitions
Code
0x01
0x02
0x03
0x04
0x0D
Table A15. Secondary Status Code Definitions
Code
0x01
0x03
0x07
0x08
Table A16. Cause Code Definitions
Code Definition
0x0000 Unknown
0x0003 Instantaneous
0x000B Over-voltage
0x000E Aux-power under voltage
0x0010 Under-frequency
0x0012 Voltage unbalance
0x001A Power demand
0x001E THD
0x0021 Control via communication
0x0028 Current demand
0x003D Long delay
0x0041 Reverse power
0x004B Making current release
0x004D Setpoints error
Long delay neutral
0x0050
over- current
0x0055 Earth fault
0x0088 Real time clock
Short delay neutral
0x009E
over-current
0x00A0 Local test from LCD
0x00A2 Ground alarm early warning
0x07FD Non-volatile memory error
Definition
Open
Closed
Tripped
Alarmed
Picked-up
Definition
Not applicable
Test mode
Powered-up since last trip/alarm reset
Alarm
Code Definition
0x0001 Normal
Instantaneous neutral
0x0005
over- current
0x000C Under-voltage
0x000F Over-frequency
0x0011 Current unbalance
0x0013 Apparent power factor
0x001B VA demand
0x001F Operations count
0x0025 Coil supervision
0x0029 Low battery
0x003E Short delay
0x0044 Phase sequence
Fixed hardware
0x004C
instantaneous
0x004E Over-temperature
0x0054 Ground fault
0x0071 Calibration
0x009A Breaker mechanism fault
0x009F Thermal memory alarm
0x00A1 High load alarm 2
0x00A2 Over-temperature alarm
0x07FE Watchdog fault
Appendix A - Modbus Communication Port Setting
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.
PT UNIT USER MANUAL APRIL 2023 www.eaton.com.cn 41