Electric valve actuator CMR

motorizedmanualmulti-turn

Description
CMR multi-turn compact modulating actuators are an all-electric solution for control valve and pump applications. They provide exact position control and continuous modulation with accurate and repeatable position feedback (up to 0.1% accuracy). Certified explosionproof to international standards and available with optional integral local controls and an optional Reserve Power Pack.

Features

• Multi-turn output drive with up to 45 Nm (400 lbf.in) rated torque
• The CMR-250 actuator with a GBX spur gearbox is a part-turn solution (with multi-turn option) offering high torque output and low power consumption
• Accurate and repeatable position control using 4 to 20 mA signal with up to 0.1% accuracy
• Explosionproof to international standards
• Adjustable speed control
• Manual override standard
• Electronic torque limiting
• Two standard adjustable position switches
• Suitable for mounting in any orientation
• Permanently lubricated, maintenance-free drive train
• Wide standard ambient temperature range: -30 to 70 °C (-22 to 158 °F) with low temperature option available
• Brushless DC motor provides reliable, accurate, continuous modulation capability
• Encoder technology provides dependable contactless feedback
• Less than 1 watt standby power
• Suitable for 1-phase or DC power supplies
• Field selectable adjustments for Deadband; Zero and span; Command signal type; Standard or reverse acting; Manual-auto operation; Output shaft position on loss of signal
• Built-in interface allows quick and simple setup via six-segment LCD display and push buttons
• Optional integral local controls with LCD positional display
• Compatible with a wide variety of fieldbus, hardwired and analogue site systems
• Fieldbus options including HART®, Foundation Fieldbus®, Profibus®, Pakscan™, RIRO, DeviceNet® and Modbus®

Technical specifications

• Rated torque: up to 45 Nm (400 lbf.in)
• Model example: CMR-250 (optionally fitted with GBX spur gearbox for part-turn or multi-turn operation)
• Position control accuracy: up to 0.1%
• Control input: 4–20 mA analogue control (plus fieldbus options)
• Motor type: Brushless DC motor
• Feedback: Contactless encoder technology
• Torque limiting: Electronic torque limiting included
• Position switches: Two adjustable position switches standard
• Manual override: Standard
• Standby power: < 1 watt
• Power supply: Suitable for single-phase AC or DC supplies
• Ambient temperature range: -30 to 70 °C (low temperature option available)
• Mounting: Suitable for any orientation
• Drive train: Permanently lubricated, maintenance-free
• Local interface: Six-segment LCD display with push buttons (quick setup)
• Optional accessories: Integral local controls with LCD display; Reserve Power Pack (supercaps)
• Fieldbus compatibility: HART®, Foundation Fieldbus®, Profibus®, Pakscan™, RIRO, DeviceNet®, Modbus®
• Suitable application: Control valves and pump applications requiring precise, continuous modulation