Design features:
Accurate and repeatable position control using 4 to 20 mA signal withup to 0.1% accuracy
Explosionproof to international standards
Adjustable speed control
Suitable for mounting in any orientation
Optimised for linear, part-turn and multi-turn control valve and pump applications
Permanently lubricated, maintenance-free drive train
Optional Reserve Power Pack (RPP) supercapacitors for fail to position functionality
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
Built-in interface allows for quick and simple setup via six-segment LCD display and push buttons
Optional integral Local Controls and positional display
Compatible with a wide variety of fieldbus, hardwired and analogue site systems
Rotork CMA range - process control compact electric actuator:
Kódoló ("encoder" ) technológia:
Egyedi digitális kódolás - a CMQ; CML; és CMR - pillanatnyi szelep állásnak megfelelő visszajelzés( 12-bit a CMQ és CML, illetve 24-bit a CMR - többfordulatú hajtásokra)
User Interface (HMI):
2 pcs of programmable relay switches - digital feedback for plenty of application - by either NO or NC contact
Defaults at plant: deadband, Zero és Span values, basic-, or reversed acting direction, manual/ auto mode, safety mode by fail to safe on loss of power signal
Brushless DC-motor by high efficiency - for continuous unrestricted modulation (S9; Class D)
Manual operation:
Available for all sizes within CMA range of actuators-by pressing down hand knob shaft engages a gear in the upper section of the drive traion and releasing the knob causes the spring to disengage the gear.
Geartrain mechanism:
Spur gear drive train - simple yet durable efficient lubricated for life with proven high ability
Output Drive:
CMQ is suitable for both regulations of MSS SP-101 and for ISO 5211 guidelines
CML and CMR units- usually individually designed valve adaptors for proper valve mounting
Local Control - available local push buttons as option (open/close and local/stop/remote) and by LED indicators
Position sensing and continuous feedback in 0,1 % increments
User friendly interface by alarm and indicating icons and diagnostic method/ quick and simple setup
Valve position is shown in % increment via LCD display
Local selectors can be padlocked in order to avoid unauthorized usage
RPP - modul unit - all features are included as listed above and also fail-to safe capacitors- enable to store enough energy to perform a predetermined action in case of power loss
"Super capacitor" - are not susceptible to the damaging effects or repeat partial charging/ discharging
Safety position.- can be configured easily via the HMI
Seating Thrust Range (CML) up to 4500 lbf (20 kN)
Modulating thrust - up to 3000 lbf (13,3 kN)
Accurate and repeatable pos. control using 4..20 mA signal with 0,1% accuracy
CMA advised design features:
Brushless DC motor provides high dynamic performance
Thrust/ Torque is instantly delivered to the valve avoiding stick/ slip effect- sturdy mechanical drive train elminiates unwanted movements associated with diaphragm actuators
Anti-backdrive mechanism is capable of resisting up to 125% of rated thrust loads
FCU/ digital interface cards - Pakscan, HART, Foundation Fieldbus, Profibus, DeviceNet, Modbus - ara available
Size range:
CMQ - 250/500/1000 - numbers represent the maximum load rates in "lbf in"
CML - 100/250/750/1500/3000 - for linear actuators available sizes
CMR - 50/89/100/125/200/250 - numbers represent the maximum load rates in "lbf in")
Further features:
Output speed can be adjusted between 50-100% in 1% increments
S9, Class D motor for unrestricted modulting duties (acc. to IEC 60034)
Self locking units that can resists up to 125% of rated thrust/ torque loads
CMA-s are factory set/ calibrated actuators
Control&feedback: by 4..20 mA signal/ by resolution equal or better than 0,2%
4 x M25 x 1,5 cable conduit entries as standard/ as an option 4 x 3/ 4 NPT is available
Paint acc. to- RAL 5010 blue - details in catalouge sheet of manufacturer
Certificate and supplemantary documents for CE marked items
Enclosures:
IP66/67 Watertight (WT) for -30 .. +70°C ambient temperature
for low temperature design down to -40 °C
For hazardous areas by ATEX and/or IECEx
