Appendix 2 Use of MODBUS Communication
91
Parameters Saving [Input Command] (Writable)
Record
Name Content Setting Range Initial Value
00FFH
Input
Command
MODBUS address in the
function list
0100H ~ 0FFFH —
Notes:
For the data writing command 06 and 10, only the data are written into RAM for
operation and are effective for this operation. After the driver is powered off and
restarted, the data written last time will not saved.
If the data written by communication has to be effective after the driver is powered off
and restarted, the data should be written and saved in EEPROM. Function 10 can be
used to write the parameters of MODBUS address to be saved into 0x00F.
By writing the MODBUS address corresponding to the parameters to be saved into
0x00FFH, the parameter data in RAM will be written and saved in EEPROM. As the
maximum writing times of EEPROM is 100,000, the input command had better not be
used frequently. The command is similar to ENTER in the keypad, by pressing which
the set parameters will be written into EEPROM. The record code 00FFH is special for
writing. When the record is read, record code errors may happen (abnormality code
02H).
Monitoring Content (Read-only)
MODBUS
Address
Name bit Content
0020H
State
Signal
0 Operation 1: Operation 0: Stop
1 Reverse 1: Reverse 0: Forward
2 Fault Resetting 1: Fault Resetting 0: No Fault Resetting
3 Fault 1: Fault
4 Alarm 1: Alarm
5 Multi-functional Output Command 1 (1: DO ON 0: OFF)
6 Multi-functional Output Command 2 (1: DO ON 0: OFF)
7 Multi-functional Output Command 3 (1: DO ON 0: OFF)
8 Multi-functional Output Command 4 (1: TA ON 0: OFF)
9 Multi-functional Output Command 5 (1: DO ON 0: OFF)
A Multi-functional Output Command 6 (1: TA ON 0: OFF)
B~F (Reserved)
0021H
Fault
Content
0 Overcurrent (OC)
1 Accelerating Overvoltage (Ou1)
2 Driver Overload (OL2)
3 Driver Overheat (OH1)
4 Decelerating Overvoltage (Ou2)
5 Constant-speed Overvoltage (Ou3)
6 Hall Current Detection Fault (HE)
7 External Abnormality (EFO~EF1)
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