E-8 RS485/MODBUS Protocol
MN762
E.7.2 Drive Error Codes
0x00
No trip 0x01 Brake circuit over current (short circuit)
0x02
Brake circuit overload
0x03
Drive output over current
0x04
Motor overload
0x05
Power stage trip
0x06
DC bus over voltage trip
0x07
DC bus under voltage trip
0x08
Over temperature trip 0x09 Under temperature trip
0x0A
Parameter default 0x0B External trip
0x0C
Communication data link loss trip
0x0D
Phase imbalance trip
0x0E
Phase loss trip
0x0F
Spin start failure
0x10
Thermistor fault
0x11
Flash data error fault
0x12
4..20mA /20..4mA input signal error
E.7.3 Data Flow Examples
1. Read Data from Register 6
Table E-7 Read Data Example
Request:
[01]
[03]
[00] [05]
[00] [01]
[94] [0B]
(Drive Addr)
(Command)
(Reg start addr)
(No. of Registers)
(Checksum)
Reply:
[01]
[03]
[02]
[00] [00]
[B8] [44]
(Drive Addr)
(Command)
(No of data bytes)
(Data)
(Checksum)
Note:
The actual start address of register 6 is 5. All data in [ ] is in 8bits Hex format. 2 Write start command to the register 1
(assumes P-07=3, P-08=0 and Digital Input1=Closed)
2. Write start command to the register 1
(assumes P-07=3, P-08=0 and Digital Input 1 = Closed)
Table E-8 Write Data Example
Request:
[01]
[06]
[00] [00]
[00] [01]
[48] [0A]
(Drive Addr)
(Command)
(Reg addr)
(Data value)
(Checksum)
Reply:
[01]
[06]
[00] [00]
[00] [01]
[48] [0A]
(Drive Addr)
(Command)
(Reg addr)
(Data value)
(Checksum)
Note:
The actual address of register 1 on the data link is 0. All data in [ ] is in 8bits Hex format. Reply can be error message
depending on drive parameter settings and digital input status.
