Yaskawa SGDS Sigma III Servo Amplifier - Manual (Page 197)

7 Operation
7.3.1 Switching Servomotor Rotation Direction
7-8
7.3 Settings According to Machine Characteristics
This section describes the procedure for setting parameters according to the dimensions and performance of the
machine used.
7.3.1 Switching Servomotor Rotation Direction
The SERVOPACK has a Reverse Rotation Mode that reverses the direction of servomotor rotation without
rewiring. Forward rotation in the standard setting is defined as counterclockwise as viewed from the load.
With the Reverse Rotation Mode, the direction of servomotor rotation can be reversed without changing other
items. The direction (+, -) of shaft motion is reversed.
• Setting Reverse Rotation Mode
Use parameter Pn000.0.
Use the following settings to select the direction of servomotor rotation.
7.3.2 Setting the Overtravel Limit Function
The overtravel limit function forces movable machine parts to stop if they exceed the allowable range of motion.
The forward/reverse run prohibited function uses software to stop the SERVOPACK. This method may not
satisfy the standards, depending on the safety specifications for the application. If necessary, add an
external safety circuit.
(1) Display of Overtravel
When an overtravel occurs, the indicator on the front panel of the SERVOPACK displays the following
messages.
Standard Setting Reverse Rotation Mode
Forward
Reference
Reverse
Reference
Position data from
SERVOPACK
+ direction
Position data from
SERVOPACK
+ direction
Position data from
SERVOPACK
- direction
Position data from
SERVOPACK
- direction
Parameter Description
Pn000 n. 0 Forward rotation is defined as counterclockwise (CCW) rotation as viewed from the load.
(Factory setting)
n. 1 Forward rotation is defined as clockwise (CW) rotation as viewed from the load.
(Reverse Rotation Mode)
IMPORTANT
Forward overtravel (P-OT)
Status
display
Forward and reverse overtravel
Status
display
Reverse overtravel (N-OT)
Status
display