
- 177 -
Communication fault address
Functional description of fault
8001
0000: no fault
0001: wrong password
0002: wrong command code
0003: wrong CRC verification
0004: invalid address
0005: invalid parameter
0006: invalid parameter alternation
0007: system is locked
0008: EEPROM operation is proceeding
Description of
PD
group communication parameters
Pd-00
Baud rate
Factory default
6005
Setting range
Unit: MODUBS Baud rate
0: 300BPS
1: 600BPS
2: 1200BPS
3: 2400BPS
4: 4800BPS
5: 9600BPS
6: 19200BPS
7: 38400BPS
8: 57600BPS
9: 115200BPS
The parameter is used to set data transmission rate between host computer and frequency
convertor. Please note that the Baud rate of host computer and frequency convertor should be
consistent. Otherwise, communication is unable to proceed. The larger the Baud rate, the faster the
communication speed.
Fd-01
Data format
Factory default
0
Setting range
0: no verification: data format <8,N,2>
1: even verification: data format <8,E,1>
2: odd verification: data format <8,O,1>
3: no verification: data format <8-N-1>
The data format of host computer and frequency convertor should be consistent. Otherwise,
communication is unable to proceed.
Pd-02
Local address
Factory default
1
Setting range
1~247, 0 is broadcast address
If local address is set as 0, namely broadcast address, broadcast function of host computer can
be realized.
Local address is unique (apart from broadcast address), and it’s the basis to realize point-to-
point communication between host computer and frequency convertor.
Pd-03
Response delay
Factory default
2ms
Setting range
0~20ms
Response delay: interval time between ending time of data receiption of frequency convertor
and time of sending data of host computer. If response delay is shorter than system processing time,
response delay takes system processing time as criterion. If response delay is longer than system