EM12 User’s Manual
Appendix I
127
Inverter fault description:
Inverter fault
description
Inverter fault information
8000
0000: No fault
0001: Reserved
0002: acceleration over current
0003: deceleration over current
0004: Constant speed over current
0005: acceleration over voltage
0006: deceleration over voltage
0007:Constant speed over voltage
0008: Buffer resistor fault
0009: less voltage fault
000A:Frequency inverter overload
000B: Motor overload
000C: Input phase failure
000D: Output phase failure
000E: IGBT overheat
000F: External equipment fault
0010: Communication fault
0011: Contactor fault
0012: Current detection fault
0013: Motor auto-tuning fault
0014: Encoder/PG fault
0015: EEPROM read-write in fault
0016: Frequency inverter hardware fault
0017: Short circuit to ground fault
0018: Reversed
0019: Reversed
001A: Accumulative running time reached
001B: User-defined fault 1
001C: User-defined fault 2
001D: Accumulative power-on time reached
001E: Off load
001F: PID lost during running
0028: fast current limit fault
0029: Motor switchover fault during running
002A: Too large speed deviation
002B: Motor over-speed
002D: Motor overheat
005A: Encode lines setting fault
005B: Not connect to the encoder
005C: Initial location fault
005E: Speed feedback fault
Group bA Communication parameters
bA-00
Communication type selection
Default
0
Setting Range
0: Modbus protocol
The EM12 now supports Modbus, later will add the communication protocol such as PROFIBUS-DP and
CANopen protocol. For details, see the description of “EM12 communication protocol”.
bA-01
Baud ratio setting
Default
5
Setting Range
0
：
300BPS
1
：
600BPS
2
：
1200BPS
3
：
2400BPS
4
：
4800BPS
5
：
9600BPS
6
：
19200BPS
7
：
38400BPS
This parameter is used to set the data transfer rate from host computer and the frequency inverter. Please note that
baud ratio of the host computer and the inverter should be consistent. Otherwise, the communication is impossible.
The higher the baud ratio is, the faster the communication is.
bA-02
Modbus Data format
Default
0
Setting
Range
0
No check, data format <8,N,2>
1
Even parity check, data format<8,E,1>
2
Odd Parity check, data format<8,O,1>
Summary of Contents for EM12 Series
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