Delta Electronics VFD-F Series manual ASCII mode, RTU mode

VFD-F Series

zCommand code: 08H, loop detection

This command is used to test the communication condition between master control equipment (usually is PC or PLC) and AC drive. AC drive will deliver the data that received from AC drive to master control equipment.

For example:

ASCII mode:

Command message:

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘0’
CMD 0	‘8’
data	‘0’
Starting	‘0’
address	‘0’
data	‘0’
	‘1’
	‘7’
	‘7’
LRC CHK 1	‘0’
	‘7’
LRC CHK 0	‘0’
END 1	CR
END 0	LF

RTU mode:

Response message:

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘0’
CMD 0	‘8’
data	‘0’
Starting	‘0’
	‘0’
	‘0’
data	‘1’
	‘7’
	‘7’
	‘0’
LRC CHK 1	‘7’
LRC CHK 0	‘0’
END 1	CR
END 0	LF

Error response message

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘8’
CMD 0	‘8’
Error	‘0’
code	‘2’
LRC CHK 0	‘6’
LRC CHK 1	‘D’
END 1	CR
END 0	LF

Command message:

ADR	01H
CMD	08H
data	00H
Starting address	00H
data	17H
	70H
CRC CHK LOW	EEH
CRC CHK HIGH	1FH

Response message:

ADR	01H
CMD 1	08H
data	00H
Starting address	00H
data	17H
	70H
CRC CHK LOW	EEH
CRC CHK HIGH	1FH

Error response message

ADR	01H
CMD 1	88H
Error code	02
CRC CHK LOW	E0H
CRC CHK HIGH	6DH

zCommand code: 10H, write continuous words

For example, modify multi-step speed setting of AC drive (address 01H) 05-00=50.00(1388H)，05-01=40.00(0FA0H)

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