VICI EUT Universal Electric Actuator - Manual (Page 12)

8
Optional Serial Interface
Mode 2: Two Position Without Stops
In this mode the actuator uses only the encoder to find the correct position. This mode
is used for the Cheminert Model C32 valve and for custom applications involving on/off
valves or any other two position valve that literally has no mechanical stops.
Installing a valve with mechanical stops while in this mode could
damage the actuator.
To set up the actuator in this mode:
1. Make sure that the valve is already mounted on the actuator.
2. Type AM2 to set the actuator to Mode 2, Two Position without Stops.
3. Type NPn, where n is the number of ports the valve has. For example,
NP6 tells the actuator that the valve has 6 ports, so the actuator can
calculate the appropriate number of degrees from position A to position B.
In this example, that distance is 60 degrees (360 / 6 ports).
Mode 3: Multiposition
Select this mode for any Valco or Cheminert multiposition valve or selector with up to
32 positions. The actuator will use its encoder to calculate the proper rotation to find
each position.
Installing a valve with mechanical stops while in this mode could
damage the actuator.
To set up the actuator in this mode:
1. Make sure that the valve is already mounted on the actuator.
2. Type AM3 to set the actuator to Mode 3, Multiposition.
3. Type NPnn, where nn is the number of positions the valve has (must be
an even number between 2 and 40). For example, for a 10 position valve, type
NP10 to set the number of positions to 10.
Do not confuse the number of
positions with the number of ports.
Many multiposition valves have more
than one port associated with each
position.
4. Type HM to send the valve to its HOME
position (position 1).
In this mode, counterclockwise moves the actuator in the
“positive” direction—position 1 to position 2. The clock-
wise direction is “negative”, moving in the direction of
position 2 to position 1.
CCW CW
Figure 8: Actuator orientation
for directional references