CHAPTER 4 Installation
4-6
3
Adjustment of the belt tension
Each axis of the YP-X series robots has a belt-driven structure. When this belt is
replaced or when it is stretched due to strong external forces (bumping etc.),
adjust the belt tension with the following procedure.
3-1
Adjustment of X,Y, Z axis motor belt tension
1) Turn off the controller power.
2) Remove the cover for each axis.
3) Loosen the bolts securing each motor and apply tension to the belt by pulling
on the motor. When loads as shown in the table below are applied to the
center section of the belt, a slack amount as shown in the lower part of the
table is satisfactory.
4) Retighten the bolts securing the motor and reinstall the axis covers.
Load
Slack
Pulley
Pulley
Belt
Robot Model
YP320X
YP320XR
Load (Kg)
Slack (mm)
X-axis
1
1
0.5
1
1
1
1
2
0.5
1
0.5
1
0.5
1
Z-axis X-axis Y-axis Z-axis
YP330X
YP340X
X-axis Z-axis
YP220BX
YP220BXR
Fig. 4-2 Belt tension
!
CAUTION
Belt tension that is too strong will damage the motor shaft.
!
CAUTION
The robot position may change depending on the belt tension.
Summary of Contents for YP-X Series
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Page 42: ...CHAPTER 3 Installation 3 8 Robot Cable DRCX YP320X Fig 3 5 Robot cable connections ...
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