Basic Functions Settings; Servo On Signal; Servomotor Rotation Direction - YASKAWA Sigma-V Series User Manual

5 Operation

5.2.1 Servo ON Signal

5.2

Basic Functions Settings

5.2.1

Servo ON Signal

This sets the servo ON signal (/S-ON) that determines whether the servomotor power is ON or OFF.
(1) Signal Setting
Type
Input
Note: Use parameter Pn50A.1 to allocate the /S-ON signal to another terminal. For details, refer to 3.4.1 Input Signal Allo-
cations for details.
(2) Settings for Continuous Servo ON Signal
Parameter Pn50A.1 can be used to enable the Servo ON condition constantly.
Pn50A
5.2.2

Servomotor Rotation Direction

The servomotor rotation direction can be reversed with parameter Pn000.0 without changing the polarity of
the speed/position reference. This causes the rotation direction of the servomotor to change, but the polarity of
the signal, such as encoder output pulses, output from the SERVOPACK does not change. (refer to 5.3.6
Encoder Output Pulses)
The standard setting for forward rotation is counterclockwise (CCW) as viewed from the load end of the ser-
vomotor.
5-4
Connector
Name
Pin Number
CN1-40
/S-ON
[Factory setting]
Always input the servo ON signal before inputting the speed/position/torque reference to
start or stop the servomotor. Do not input the references first and then use the servo ON
signal or turn ON/OFF the AC power supply to start or stop. Doing so will degrade inter-
nal elements and lead to accident. Input the servo ON signal while the servomotor stops.
While the servomotor is rotating, the servo ON signal cannot be input.
Parameter
n. 0 Inputs the servo ON signal from the input terminal
[Factory setting] CN1-40.
n. 7
Constantly enables the servo ON signal.
Operation of the SERVOPACK and converter will be possible (i.e., power will be sup-
plied) when the main circuit power supply is turned ON if the servo ON signal is set to be
always enabled. When inputting speed/position/torque reference, be sure to implement
safety measures for unexpected operation of the servomotor and machine.
Operation of the SERVOPACK and converter will be possible (i.e., power will be sup-
plied) when an alarm is reset after an alarm occurs. The servomotor or machine may
operate unexpectedly if an alarm is reset while a reference is being input.
Setting
Servomotor power is ON. Servomotor
ON
can be operated.
Servomotor power is OFF. Servomo-
OFF
tor cannot be operated.
Meaning
Meaning
When
Classification
Enabled
After restart Setup