Microelectric actuators – multiposition

• CE certified
• Direction reversal
• Position indication
  • LED display
  • RS-232 output
  • BCD 5V negative true output
• Manual control
  • Step and home functions
  • Direction control
• Remote control
  • Step and home functions with contact closure
  • Direct position access with BCD 5V negative true input
  • Direct position acces with RS-232 input (RS-485 optional)
• Automatic alignment with keyed valves and standoffs
• Autosensing universal power supply, 110/230 VAC to 24 VDC

Product numbers

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Actuators
RS-232 cables

What microelectric actuator model goes with my multiposition valve?

The microelectric valve actuator provides Valco dependability in a unit which is less than half the size of our standard model. The actuator consists of a control module, a stepper motor/gearbox assembly, a manual remote control, interconnecting cables, and a 110/230 VAC to 24 VDC power supply. The RS-232 interface cable, if required, must be ordered separately.

One actuator can be used on any multiposition valve, from 2 to 96 positions - you tell the actuator how many stops to make through its 360° of rotation. So you can stock only one type of actuator even if you have 4, 6, 8, 10, 12, and 16 position valves. Valve position memory is maintained even in the event of a power failure.

The direction reversal feature means that if a 6 position stream selection valve is on stream 1 and you select stream 6, you have the option of stepping "backwards" to stream 6 instead of passing through 2, 3, 4, and 5. The RS-232 input offers various commands like position access, direction control, shortest route, etc. (The RS-232 cable must be ordered separately.)

An actuator can be specified with closemount hardware, with a 2”, 3”, 4”, or 6” standoff, or with just the standoff mounting hardware, if your valve already has a standoff. Valves which will be mounted in ovens require a standoff assembly, which locates the actuator out of the heated zone.

Tech tip

Controlling multiple microelectric actuators
About keyed standoffs

Download an instruction manual

View a manual in pdf format. (To download a manual, right click this link and save the file to your computer. Go here for more about viewing the manuals.)

Further reference

Declaration of CE Compliance
Mounting hardware
   What mounting hardware do I need?
   Closemount hardware
   Standoff assembly
   Right angle drive
What microelectric actuator model goes with my multiposition valve?
Other multiposition actuators
  Standard electric
  Air

Since different valve models have varying actuation torque requirements, there are two microelectric actuator models for multiposition valves.Consult a chart to determine which model your valve requires.

Multiposition microelectric actuators

Tech tip: RS-232 cables

An RS-232 interface cable (I-22697) is required for controlling an actuator from a computer serial port. Multi-drop cables permit a single serial port to control multiple microelectric two position and multiposition actuators. Multi-drop cables have one female DB9 and 2 to 8 male DB9 connectors – approximately 6” long. Note: the RS-232 interface cable (I-22697) is required for each actuator controlled serially.

Tech tip: About keyed standoffs

Keyed standoff assemblies are used with multiposition microelectric actuators, to key the valve body to the actuator and standoff so that the actuators can self-align and operate valves with any number of positions.

Valco multiposition valves are not keyed unless ordered with a microelectric actuator. To install a microelectric actuator on an existing Valco multiposition valve, the key (pin) must be removed from the actuator clamp ring assembly. This can be done easily with a pair of pliers.