VOS2T
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-4767 Rev.2 P. 2 / 4
COMPONENT IDENTIFICATION
Jumpers (JP1, JP2)
Cover
Body
Specifications
REVERSE
DIRECT
JP1
JP2
R
D
JP1
JP2
R
D
Screw for Lever
Plain Washer
External Toothed Washer
Lever
Shaft
Indicator
Zero Adjustment (Z)
Span Adjustment (S)
Output Terminal (+)
Output Terminal (–)
Cable Connector
Cable
■
Upper side
■
Lower side
Figure 1
INSTALLATION
The output accuracy of the VOS2T is largely affected by its
mechanical position relative to the actuator. The VOS2T
should be installed according to the following instructions
because an improper installation may lower its perfor-
mance. No unnecessary strain should be applied to the
VOS2T unit or the lever.
■
ATTACHING THE CONNECTING PIN TO THE VOS2T SIDE LEVER
Attach the connecting pin to the VOS2T side lever utilizing
the nailed nut and the nut as in Figure 2. The nail could be
positioned in either side of the lever, however it is limited to
one side at the extreme end of the lever hole.
As you see in Figure 3, the output signal of the VOS2T is
proportional to the sine q of the lever angle. Position of the
connecting pin is determined by the following equation.
R = 2.613 ×
S
2
where R = Distance between the centers of pin and lever (radius)
S = Actuator stroke
Note: It is recommended to set the connecting pin at this
stage to the position a little nearer to the actuator
than the calculated position in order to prevent over-
range rotation of the VOS2T side lever. Move it back
to the correct position later in the adjustment proce-
dure.
Nut with Washer
Lever, VOS2T Side
Nailed Nut
Connecting Pin
Lever, Actuator Side
ø5
–0.03
0
x
Figure 2
Lever, Actuator Side
(Clamp Set)
Lever, VOS2T Side
R
h
q
Connecting Pin
(Attached to the Lever Assembly)
Figure 3
