Serial Commands; Basic Operation Commands - YASKAWA S-V Series User Manual

7 Serial Command Communications

7.7.1 Basic Operation Commands

7.7

Serial Commands

The axis number and delimiter are attached to actual serial commands, but are omitted here.
Some data in responses (such as parameters, table numbers, and monitored data) is expressed numerically. The
presence/absence of the sign and the number of digits are correct in the numerical data shown in these exam-
ples, but the sign and numerical value will vary in actual applications.
7.7.1

Basic Operation Commands

The following table shows the basic operation commands.
Serial Command
SVON
SVOFF
ARES
*
RES
∗
RES command is available for firmware version 3 or later.
7-8
Basic Operation Commands
Function/Description
Servo ON
Supplies power to the motor.
This command is the same as turning ON
the /S-ON signal.
Servo OFF
Stops the power supply to the motor.
This command is the same as turning
OFF the /S-ON signal.
Alarm Reset
Clears the alarm.
Reset
This command is the same as turning
OFF/ON the control power supply.
Positive Response (Normal Response)
OK
OK
The response "OK" will be returned when the alarm has
been cleared. The alarm code will be returned if the
alarm remains uncleared.
ALM [SP] A. xxx [SP] [CR] [LF]
(The xxx is the SGDV alarm code.)
ALM [SP] E xxA [SP] [CR] [LF]
(The xx is the INDEXER Module alarm code.)
None (No response)
Note: If the RES command has been successfully exe-
cuted, no response will be returned. Because the
execution of the RES command resets all status
in the same way that restarting the control power
supply will, serial communications will be unsta-
ble for a maximum of 5 seconds after the RES
command is used. Wait at least 5 seconds before
sending the next command.