Catalogue Greatork Catalogue
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SMART VALVE AUTOMATION
Greatork
New generation GREATORK actuators incorporate optional intelligent frequency conversion
Excellent capability
Intelligent electronic motor mastering unit (AVAF)
♦ Throughout Motor Protection
♦ Syncrophase protection from incorrect wiring
♦ Motor chambers integrated with actuators
♦ Operation Optimization through motor speed controlling
Performance Data
NewAVAF and AVATF actuators incorporate intelligent frequency conversion
GREATORK AVAF/AVATF range is developed from AVA/AVAT, which incorporates motor frequency conversion and Dc servo motor technologies to fulfill accurate on-off switch and sustain frequent modulation.
AVAF range are integrated with intelligent frequency conversion module, and AVATF with DC industrial servo motor unit, instead of conventional motor redirecting relay for increased reliability. All AVAF/AVATF range output axes have 8 speed levels for customers' self-configuration, electronic position controlled and electronic torque protected, internal supervision and motor protection enabled. The newly AVAF/AVATF ranges have full compatibility with all communication protocol including MODBUS RTU, PROFIBUS-DP, FOUNDATION-H1.
Intelligent DC servo motor mastering unit (AVATF)
♦ Favorable motor speed shift. Better motor protection
♦ Wide range voltage options and No need for phase revision
♦ Motor chambers integrated with actuators
♦ Operation Optimization through motor speed controlling
AVAF/AVATF On-Off Actuator, S2-15 min Motor: 60 starts / hour AVAFM/AVATFM Modulating Actuator, S4/S5 Motor: 1200 starts/hour
GREATORK Actuator features
♦ Wide range for setting stall torque and output axis speed
♦ Long valve life via soft startup and soft closeup
♦ Easier Operation and higher precision by using either non-contacting Hall position module or non-contacting photoelectric coder
♦ AVAF range incorporating high-precision adjustable sensor to measure output torque
♦ AVATF range incorporating DC servomotor mastering system to achieve integration of electric torque measurement system and converting motor speed, temperature, voltage, current into torque with higher precision and enhanced reliability.
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