VSI 1010-X - Adjustment of Actuator - 2 Position

SERIES 1000-X ELECTRIC ACTUATORS
13 VER: 0812-1
ADJUSTMENT OF ACTUATOR - 2 POSITION
Units are calibrated at the factory to rotate 90° - if any adjustment is needed please use the following
procedure.
1. Adjustment of electric limits for 2 posion valves (Fig 5.)
a. Full Closed posion adjustment: Using the manual hand wheel or hand crank, drive the valve to the full closed posion.
Ensure the pointer on the dome lid is poinng red zero “shut”. If not, remove lid and loosen dome indicator and re-posion to
red zero “shut”. To adjust the closed limit switch, loosen shut posion regulang sha (S) using 2mm Allen wrench and rotate
the stroke dog D1 (lower) clockwise unl the K1 switch makes click. Tighten shut posion regulang sha (S).
b. Full Open posion adjustment: Using the manual hand wheel or hand crank, drive the valve to the full open posion.
Ensure the pointer on the dome lid is poinng yellow zero “open. To adjust the open limit switch, loosen open posion regulat-
ing sha (O) using 2mm Allen wrench and rotate the stroke dog D2 (upper)counter-clockwise unl the K3 switch makes click.
Tighten open posion regulang sha (O).
Figure 5
2. Adjustment of mechanical stops (Fig 6 & 7) PLEASE SEE WARNING BELOW BEFORE PROCEEDING!
To prevent damage, the electrical limit switches need to be set to make contact prior to the sha reaching the mechanical
stops.
a. Using the manual override handle or hand wheel, rotate the valve to the full closed posion unl the switch K1 clicks.
b. Loosen the lock-nut on the le side of the unit and rotate the adjusng screw clockwise using Allen wrench unl the screw
comes into contact with the stopper – then back o ½ of a turn (counterclockwise). Tighten lock nut.
c. Repeat step above for open direcon of operaon.
3. Electric Test
a. Connect wiring per the control circuit diagram – located in the terminal cover lid.
b. Verify that the valve rotates to the closed posion by observing the dome indicator points to red zero “shut”.
c. Verify that the valve rotates to the open posion by observing the dome indicator points to yellow zero “open”.
d. Aer all adjustments menoned above, check the alignment of the dome indicator scale and pointer. If the pointer is not
aligned properly on open and closed posion – adjust as needed by loosening the dome lock screw and then reghtening.
Scale plate
Dome indication
Full-open position
Full-close position
Lock screw
Opening gear
Shut position regulating shaft
Open position regulating shaft
S(Red) O(Green)
D2
D1
O
S
K1
K2
K3
K4
Open-direction   middle  position
Close-direction  middle position
Micro-switch
Clockwise
Stroke dog
Counter-
Clockwise
Clockwise
Regulang sha
Figure 6
Adjusng screw for
closing limit-switch
Adjusng screw for
opening limit-switch
Lock Nut
Mechanical
Limit Stopper
Figure 7
Electric Limit-Switch
(Full Close Posion)
Electric Limit-Switch
(Full Open Posion)
Mechanical Limit-Switch
for close direcon
Mechanical Limit-Switch
for open direcon
90°
2.5°
2.5°