Vilter VSM 71-701 Operation And Service Manual Download

Page: 35 / 244

Installation & Calibration

during the calibration process. To prevent
damage to the actuators, do not connect the
yellow power cable or the gray position
transmitter cable until instructed to do so
later on.

Open the plastic cover of the capacity
motor by removing the four #10 screws.

Caution: there are wires attached to the
connector on the plastic cover. Handling
the cover too aggressively could break
the wires.

Gently lift the cover and tilt it toward the
Turck connectors. Raise the cover enough
to be able to press the blue calibrate button
and be able to see the red LED on the top
of assembly.

Press “Menu” on the main screen and then
press the “Slide Calibration” button, to
enter the slide calibration screen. (Note:
you must be in this slide calibration screen
before attaching the yellow power cable or
gray position transmitter cable.)

Now connect the yellow power cable and
the gray position transmitter cable to the
actuator.

10. Press INC and DEC to move the slide

valve and check for the correct rotation.
See Table 1on page 48 for Actuator/
command shaft rotation specifications.

11. Note: If the increase and decrease buttons

do not correspond to increase or decrease
shaft rotation, swap the blue and brown
wires of the “yellow power cable”. This
will reverse the rotation of the actuator/
command shaft.

12. Quickly press and release the blue push

button on the actuator one time. This
places the actuator in calibration mode.
The red LED will begin flashing rapidly.

13. Note: When the actuator is in calibration

mode, it outputs 0V when the actuator is
running and 5V when it is still. Thus, as

stated earlier, the actuator voltage will
fluctuate during calibration. After the
actuator has been calibrated, 0V output
will correspond to the minimum position
and 5V to the maximum position.

14. Note: The “Slide calibration” screen on

the Vission/Vantage has a “Current”
window, which displays twice the actuator
output voltage. This value, (the % volume
and the % capacity) displayed in the
“Current Vol” and Current Cap” Windows
are meaningless until calibration has been
completed.

15. Use the DEC button on the Vission/

Vantage panel to drive the slide valve to its
minimum “mechanical stop” position.

not continue to run the actuator in this
direction after the slide valve has
reached the stop. Doing so may cause
damage to the actuator or the slide
valve.

When the slide has reached the

mechanical stop position, use the INC
button to pulse the actuator to where the
slide is just off of the mechanical stop and
there is no tension on the motor shaft.

16. Quickly press and release the blue button

on the actuator again. The red LED will
now flash at a slower rate, indication that
the minimum slide valve position (0V
position) has been set.

17. Use the INC button on the Vission/Vantage

panel to drive the slide to its maximum
“mechanical stop” position.

Do not

continue to run the actuator in this
direction after the slide valve has
reached the stop. Doing so may cause
damage to the actuator or the slide
valve.

When the slide valve has reached

the mechanical stop position, use the DEC
button to pulse the actuator to where the
slide is just off of its mechanical stop and
there is no tension on the motor shaft.

18. Quickly press and release the blue button

on the actuator one more time. The red
LED will stop flashing. The actuator is