Contrans I_remote provides all the necessary modules for matching the field signal. These include analog inputs for feeding the transmitter or for reading off analog field signals, temperature inputs, analog outputs for controlling
HEDT300340R1 ED1780a Data sheet
HEDT300340R1 ED1780A is Remote Interface Modules.Contrans I_remote provides all the necessary modules for matching the field signal.
These include analog inputs for feeding the transmitter or for reading off analog field signals, temperature inputs, analog outputs for controlling electrical actuators and positioners, binary input and output units.
Gateways and the post-connected function modules represented a node. More higher number of subscribers can be obtained by assembling further Contrans I_remote nodes.
Features
– Field orientation via mechanical commutator
– Controlling variables are armature current and field current, measured DIRECTLY from the motor
– Torque control is direct
In a DC motor, the magnetic field is created by the current through the field winding in the stator. This field is always at right angles to the field created by the armature winding. This condition, known as field orientation, is needed to generate maximum torque. The commutator-brush assembly ensures this condition is maintained regardless of the rotor position.
Once field orientation is achieved, the DC motor’s torque is easily controlled by varying the armature current and by keeping the magnetising current constant
The advantage of DC drives is that speed and torque - the two main concerns of the end-user - are controlled directly through armature current: that is the torque is the inner control loop and the speed is the outer control loop (see Figure 1)
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Advantages
– Direct - the motor torque is proportional to the armture current: the torque can thus be controlled directly and accurately.
– Rapid - torque control is fast; the drive system can have a very high dynamic speed response. Torque can be changed instantaneously if the motor is fed from an ideal current source. A voltage fed drive still has a fast response, since this is determined only by the rotor’s electrical time constant (ie, the total inductance and resistance in the armature circuit)
– Simple - field orientation is achieved using a simple mechanical device called a commutator/brush assembly. Hence, there is no need for complex electronic control circuitry, which would increase the cost of the motor controller.
Freequently Asked Questions
1.What is the HEDT300340R1 ED1780A used for?
It is used in industrial automation systems for controlling and monitoring various electrical processes.
2.What are the key features of this module?
Key features typically include multiple input/output channels, compatibility with ABB control systems, and advanced diagnostics.
3.What is the operating voltage range?
The module usually operates within a specified voltage range; consult the technical specifications for precise details.
4.What environmental conditions can it withstand?
It is designed for industrial environments, typically supporting a temperature range of -20°C to +60°C and resistant to humidity and vibration.
5.How do I install the module?
Installation involves following the manufacturer's guidelines, which can be found in the installation manual. It usually requires proper mounting and wiring.
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