SD intelligent electric actuator
SD non-intrusive intelligent electric actuator is the execution unit in industrial automation instrument, it receives from the regulator, PLC, DCS control signal from the computer, such as the completion of automatic adjustment, is indispensable to automatic control system for main equipment. It is widely used in power station, metallurgy, petroleum, chemical mine, light industry, pharmacy, gas power, building materials, transportation and city subway, water supply, sewage treatment and other industries.
Main technical parameters of SD electric actuator
Input signal:4-20mA impedance 250 Ω 0-10mA impedance 200 Ω
Dead area (sensitivity):0.3-3% Continuous adjustable Input channel:one analog current input channel , one set of switch volume channel .
Output channel:4-20mA DC impedance > 50 Ω. The input channel is isolated from the output channel.
Output torque and travel.
Linear-turn: 2000N-25000N travel 10/16/25/40/100mm
Quarter-turn: 100-40000Nm travel 90°
Multi-turn: 40-400Nm travel 1-50 circle
Basic error:±1%;±1.5%
Return difference:≦ ±1%
Damping characteristics:No oscillation (zero period oscillation)
Level of proection: IP67
Operation environment:
1. temperature: -28--+70
2.humidity: ≦95%
3.shake: frequency 10-100Hz strenth, 0.5 times of acceleration of gravity
4.impact: <5g
5. barometric pressure:72.5-106KPa
The non-corrosive gas media in the surrounding air must not be used in inflammable and explosive places.
(The explosion-proof products can be found in my company's explosion-proof products'sample.)
voltage and power supply 220V--±10%50Hz
Single phase:220V--±10%50Hz 380V--±10%50Hz
Three phase: 380V--±10%50Hz
*Special voltage, frequency needs to be customized in advance.
Control Fieldbus interfaces
PROFIBUS
PROFIBUS DP is readily available worldwide.It provides exceptional device availability through proven security mechanisms and efficient high-speed data exchange,ensuring rapid communication.
SD series supports the following PROFIBUS DP functions:
Basic functions DP-VO
Functional level DP-V1
Functions of level DP-V2
Functions of level DP-V2
support time stamp and slave redundancy according to the RedCom profile.
Modbus RTU
Modbus RTU is a relatively straightforward fieldbus protocol for simple communication befween the master control station and slaves (actuators, sensors).
SIPOS actuators support the RTU version.
All process data access and assigning of all actuator parameters is supported by the Modbus RTU slave connection in the SIPOS SEVEN.
Additionally,actuator information can be read.
In common with PROFIBUS, the physical connection is made via RS-485 or fiber-optic cables.
HART
HART (Highway Addressable Remote Transducer) is an open protocol for bidirectional data exchange between control system and field device, enabling both analog and digital communication at the same time.
HART always requires an analog current signal 4-20 mA for data exchange. Higher frequency, digital HART signals are superimposed by means of an FSK(frequency shift keying) modem.
ModbusTCP/IP T
Same as functionality as Modbus RTU.
The physical connection is performed via an external M12 connector in Ethernet physics.
Control system integration
Although control availability is the fundamen-fal requirement,easy confrol system integrationmustalsobeensured.Specific parameters and data formats must be made ovailable and fully integrated within controls and process control equipment.
Fieldbus communication with INTELLI+control
The fieldbus, present on a large number of installations, is used more ond more to communicate information ond commands with multiple actuators ond devices wired in series on a single poir of wires.
Thus, the number of information ovailable from each actuator con be multiplied uhile reducing the overoll cost of wiring on the site. FRY actuotors can be connected to most of the standard fieldbuses avoilable on the morket:
●PROFIBUS DP
●FOUNDATION FIELDBUS
●MODBUS RTU
●HART
● Other fieldbus on demond.
For more security, redundant fieldbus ensures continuous operotion, even in case of a bus line disruption. Indeed, all elements of the bus line (bus controller, lines, actuators interfoces) ore doubled.
Open versus Proprietary systems:.
Two physical concepts of fieldbus ore ovoilable from vorious providers.
The Proprietory so-colled system:
This is a technology designed by a device monufacturer for his own needs. A Proprietory system always includes the actuotors with the specific bus interfoce, but olso the bus controller locoted ot the line head-end. Only the products proposed by the bus controller monufacturer con be instolled on the bus.
Model Preparation Method
Remark: 1.The electric actuator required by the special technology needs to write clearly and concretely in order.
2.When A+RA300/K30HGP model is A+RS, the working torque is 1000Nm, single-phase power supply, the whole travel time is 30 seconds, and foot-plate installation with integration proportional modulatin with the local operation.
Quarter-turn specification parameter
Certifications
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