Scara Robot Manipulator Manual
Setup & Operation    5. Motion Range 
50  G3 Rev.1 
5.1.3    Max. Pulse Range of Joint #3 
The 0 (zero) pulse position of Joint #3 is the position where the shaft is at its upper limit. 
The pulse value is always negative because Joint #3 always moves lower than the 0 pulse 
position. 
Upper limit: 0 pulse
Model  Joint #3 Stroke  Lower Limit Pulse 
G3-**1S*  150 mm 
−1706667 
G3-**C* (Cleanroom-model)  120 mm 
−1365334 
For the Cleanroom-model (G3-***C*), the motion range set with the Joint #3 mechanical 
stop cannot be changed. 
)
NOTE 
5.1.4    Max. Pulse Range of Joint #4 
The 0 (zero) pulse position of Joint #4 is the position where the flat near the end of the 
shaft faces toward the end of Arm #2. With the 0 pulse as a starting point, the 
counterclockwise pulse value is defined as the positive (+) and the clockwise pulse value 
is defined as the negative (-). 
+Y 
+X 0 pulse ± 1494221 pulse 
Clockwise (-value)
Counterclockwise (+value)










