Sanken SVCO6, Instruction Manual, Page: 262 / 326

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7-4 Serial Communication Function
RS485 interface circuit
at computer side
RS485 receiving circuit RS485 transmitting circuit
※
Occasions with 2-wire connection
7-4-4 Communication with Dedicated Protocol (SANKEN Communication Protocol)
(1) List of command code (OP)
The followings are command codes in communication (ASCII).
Command Type Command Processing
Data reading
―A‖
Alarm No.
―B‖
Function code data
―C‖
Output frequency
―D‖
Output current
―E‖
DC voltage
―F‖
Radiator fin temperature
―G‖
Load factor
―H‖
Operation status 1
―I‖
Operation status 2
―J‖
Control terminal input status
―K‖
Output voltage
―L‖
VIF1 control circuit terminal input
―M‖
VIF2 control circuit terminal input
―T‖
VIF3 control circuit terminal input
Data writing
―N‖
Function code data
―O‖
Frequency setting
※
1
Operation control
―P‖
Forward run
※
2
―Q‖
Reverse run
※
2
―R‖
Stop
※
2
―S‖
Alarm reset
Automatic alarm
―X‖
Automatic alarm permitted
―Y‖
Automatic alarm prohibited
―Z‖
Automatic alarm
Batch operation
―a‖
Select inverters for batch control
―b‖
Specify direction of rotation for batch inverter control
―c‖
Release batch inverter control
―d‖
Batch start
※
2
―e‖
Batch stop
※
2
Error
―?‖
Error response
※
1
：
Effective only when 1st speed frequency setting selection F1002=22 (communication) is selected
※
2
：
Effective only when operation command F1101=3 (communication) is selected
Pull-down resistor
Pull-up resistor
Terminal
resistor
RS485 transmission line