Multi-Port Actuator is an EIM single turn actuator for control of Multi-Port Flow Selectors (MPFS) with 3 to 8 ports. A typical application is oil or gas well selection for well production testing and is often combined with Multiport Flow Selector (MPFS).
Allows diversion of fluids from a single flow line to a test outlet or sampling device
I/O and alarm monitoring includes: integral circuit breaker/disconnect, motor overload and motor thermal, loss of control voltage, encoder failure, stall detection and alarming (detects mechanical faults), 3-phase monitoring and phase correction to insure correct motor rotation, ESD to send selector to home port (also goes to home port on fault), and monitor relay for hardwired relay contact status on fault
Includes EIM exclusive solid-state motor starter and control software provides precise positioning of flow selector within +1 degree of selected port, high performance microcontroller updates motor control output every 4ms for precision motor control, 12-bit magnetic encoder coupled directly to torque pinion for torque feedback, and provides torque measurement resolution of 0.146% of full torque
Uses rugged, high visibility LED display for port number, torque, and alarms (also displays setup menus and setup parameters), multiple color LEDs display, port position within 1o of port - port position within 2o of port - motor running - alarm - over torque - position within 0.25o of home port - local mode - off mode, combined detection logic for two selector switches - remote mode, includes local off remote selector switch, and local control knob for port selection and jog control when enabled by user
Remote display module (RDM) option available, RDM displays identical information and performs identical control as LDM, EIM patented combined switch logic allows detection of selector switch position on LDM and RDM, allows remote control up to 4,000 feet (1,220 meters) away, and alarming includes loss of communication with RDM
Wide range of 4-pole motors available for any voltage or torque, configurable for MPFS from 3 to 8 ports, 12-bit encoder coupled directly to valve stem for position feedback, precise motor control with microcontroller updates every 1 mS