136
state is: 50.00*2.000=100.00 (2 decimal places display).
For example, the rated speed of the motor is 1500r/min, and the rated frequency is 50HZ. If the user want to
display the load speed, P8-22=11, it is necessary to set P8-21= 3.0. Then U0-16 (load speed display) value is
1500.0.
4-2-10. Group P9 Communication protocol
Serial communication protocol
selection
0: Modbu-RTU
1: Communication extension card
When P9-00=0, the communication protocol is Modbus RTU. Please refer to Appendix B for communication
introduction.
When P9-00=1, the communication protocol is EtherCAT/CANopen.Please refer to the manual of the
corresponding expansion card.
EtherCAT communication expansion card supports 12 groups of PDO, which are: the master station (upper
computers) sends data TPDO1~TPDO12, and the mapped function code can be viewed through PE-00~PE-11.
The slave station (frequency converter) responds to data RPDO1~RPDO12, and the mapped function code can
be viewed through PE-20~PE-31. Refer to U4 group parameter description for mapping parameter function.
1~247, 0 is broadcast address
Ones bit: MODBUS
0: 300BPS
1: 600BPS
2: 1200BPS
3: 2400BPS
4: 4800BPS
5: 9600BPS
6: 19200BPS
7: 38400BPS
Tens bit: EtherCAT
0:115200BPS
1:208300BPS
2:256000BPS
3:512000BPS
0: No parity (8-N-2)
1: Even parity (8-E-1)
2: Odd parity (8-O-1)
3: No parity (8-N-1)
When P9-00=0, ones bits of P9-02 is valid, and the factory value of P9-02 is 06.
Group P9 parameters are the communication parameters of this model. The necessary conditions for serial
communication are communication protocol, local station number, baud rate and data format.