VB5N series inverter
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5. Parity code
RTU mode: Double bytes hex number
CRC field has two bytes 16-bit binary number. It is added to the message after calculating by sending
terminal. The low byte is added at first, and then is the high byte. CRC high byte is the last byte to be
sent. The receiving device will calculate the CRC again and compare to the received CRC value. If the
two values are not the same, discard this frame and receive the next frame.
7-3-3.Communication parameter
Internal parameters setting
GG stands for parameter group, nn stands for parameter No.
0001H: Running command (Forward)
0004H: Jog command (Forward)
0005H: Jog forward command
0006H: Jog reverse command
0007H: Decerlate stop command
0008H: Emergency stop command
000AH: Fault reset command
Set frequency via serial port
BIT0: stop sign, 0: Stop; 1: Run
BIT1: 1: under voltage; 0: normal
BIT2: forward/reverse sign,1: forward; 0: reverse
BIT3: jog sign 1: jog; 0: not jog
BIT4: close loop control selection, 1: close loop; 0: not close loop
BIT5: swing frequency sign1: swing frequency 0: no swing fre-
quency
BIT6: PLC running flag, 1: PLC running , 0: no
BIT7: Multi-speed running flag of terminals, 1: Multi-speed; 0: no
BIT8: Common running flag, 1: common running; 0: no
BIT9: Main frequency from communication interface, 1: yes; 0: no
BIT10: Main frequency from analog input, 1: yes; 0: no
BIT11: Running command from communication interface, 1: yes;
0: no
BIT12: Password protection for parameters, 1: yes; 0: no
Read inverter setting frequency
Read inverter output frequency
Read inverter output current
Read inverter bus voltage
Read inverter output voltage
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