YASKAWA SGMAH - Using the Servo on Input Signal (;S-ON)

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5-72
5.5.2 Using the Servo ON Input Signal (/S-ON)
The basic use and wiring procedure for the Servo ON (/S-ON) input signal
(sequence input signal) is described below. Use this signal to forcibly turn OFF the
servomotor from the host controller.
This signal is used to turn the servomotor ON and OFF.
Set the following parameter to 7 if the /S-ON signal will not be used.
Input /S-ON CN1-40 Servo ON
Speed/Torque Control,
Position Control
CN1-40
State
Status Result
ON Closed or low level
Turns ON the servomotor: operates
according to signal input.
This is the default state.
OFF Open or high level
Servomotor cannot operate.
Do not turn OFF the servomotor while it is
operating except in an emergency.
• Do not use the Servo ON (/S-ON) signal to start or stop the motor. Always use an input reference
signal, such as Speed Reference to start or stop the servomotor.
Doing so will shorten the life of the servo amplifier.
Parameter Signal Setting Description
Pn50A.1 /S-ON Signal Mapping Default Setting: 0
Speed/Torque Control,
Position Control
+24V
CN1-47
CN1-40
7mA
0V
Servo amplifier
I/O power supply
Photo
coupler
Host controller
/S-OUT
+24V
IN
3.3kΩ
CAUTION
Servo amplifier
0V
CN-40
(/S-ON)
The external short-circuit wiring shown
in the figure can be omitted if the Servo ON
(/S-ON) input is not used.