MODBUS Protocol 89
Note:
(1)The frequent writing of function code parameters in the EEPROM will reduce
its service life. Some parameters in the communication mode don’t need to store,
but to modify the RAM value. When writing the functional parameter of RAM,
just change “F” to “0” in the high address of the register, e.g. when writing the
RAM value of F1.11, its register address should be 010 B, but the expression
method of the register address cannot be used to read the functional parameters
of the frequency inverter.
(2) Operation command corresponding to operation command code:
Operation command code
0x0000
Operation command
Invalid command
0x0001
FWD running start
0x0002
0x0003
0x0004
0x0005
0x0006
0x0020
REV running start
Stop
FWD inching of slave machine
REV inching of slave machine
Inching running stops
Fault reset of slave machine
(3) Inverter status:
Inverter status code
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0011
0x0012
0x0013
0x0014
0x0015
0x0016
0x0020
Indication
The direct voltage of slave machine is not ready
In FWD running of slave machine
In REV running of slave machine
Slave machine stops
In FWD inching running of slave machine
In REV inching running of slave machine
In FWD acceleration
In REV acceleration
Instant stop and restart
FWD deceleration
REV deceleration
Slave machine stays in DC braking condition
Slave machine stays in fault condition
(4)The high fault message code is 0, while low is corresponding to the rear mark
number of inverter fault code-Fu., e.g. if the fault message code is 0x000C, it
represents that inverter fault code is Fu.12.
E550 Series Universal Low-Power Inverter
