FAQ
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FAQ POWER CONTROLLER

This FAQ section contains general information relating to our Power Controllers.

 

What is a power controller used for?

Power controllers enable users to control or regulate electrical energy in a beneficial way (monitored, wear-free and with a high degree of efficiency).

What types of load can be connected to an AEG PS power controller?

  • ohmic load
  • ohmic load with a wide ratio of hot and cold resistance
  • transformer load (with ohmic load)
  • capacitive load (only with Thyro-C)

What types of power controllers are in the Thyro Family?

  • 1-phase controlled for single-phase loads
  • 2-phase controlled for 3-phase loads (power-saving switch)
  • 3-phase controlled for 3-phase loads
  • current from 8 A to 2900 A
  • voltage from 230 V to 690 V
  • output from 1,8 KW to 2,8 MW

What is the difference between a thyristor switch and a thyristor power controller?

Thyristor switch
Depending on the control signal, the load is fully switched to the line voltage or idle. In connection with a temperature controller, the thyristor switch can be used, e.g., for two-position actions. 

Thyristor power controller
Proportionally to the control signal, the load is variably supplied with energy. Depending on control mode and power unit, it is possible to implement U-control, U²-control, I-control, I²-control or P-control.

What are the different control modes?

  • U-control
  • U²-control
  • I-control
  • I²-control
  • P-control

What are the different control modes used for?

The control modes enable you to adjust settings as required for your load performance or for your specific application.

What are the different operating modes?

  • VAR = Phase angle control (according to the setpoint, each half-wave of the line voltage is more or less connected through to the load).
  • TAKT = Full-oscillation cycle mode operation (within a TAKT period, the load is switched on / off once).
  • QTM = Quick Takt Mode is a fast variant of the TAKT mode and particularly suitable for infrared radiators.
  • SSSD = Soft-Start-Soft-Down (like TAKT, however, with Soft-Start-Soft-Down ramp in the phase angle control).
  • MOSI = Sub-mode of TAKT or VAR for peak current limitation during the heating-up phase of temperature-dependent load resistors.

What are the different operating modes used for?

By means of the operating mode, an adaptation to application or network requirements can be implemented.

 

Which types of monitoring are possible?

  • Device monitoring
  • Load monitoring (also partial load)
  • Line voltage monitoring

What does a temperature control loop with power units look like?

The temperature controller output is connected with the set point input of the power controller. The power controller can be adapted to the output levels of the temperature controller. Here it is advantageous that the cascade U-, U²-, I-, I²- or P-control of the power unit is able to balance dynamic load or line voltage changes extremely fast.

Which temperature controllers can be connected to a power controller?

The AEG PS power controller can be connected to nearly all temperature controllers.

Do thyristor power controllers cause a mains feedback and if so, how can this be optimized?

Similar to all units connected to the mains, also thyristor power controller with connected loads generate a mains feedback. For applications being disturbed by such a feedback, generally, different measures for its reduction or optimization are possible, e.g.:

 
  • Selection of the most convenient operating mode
  • Optimization of mains load (patented ASM procedure, Thyro-Power Manager)
  • Switching mode of the total application

Which synchronization procedures are available?

Synchronization procedures can be used for applications with several power controllers. They serve to minimize the mains loading and thus to minimize investment and operating costs. They simultaneously minimize mains feedback.

Which bus couplings are possible?

Depending on the power controller type, bus couplings are possible to Profibus-DP, CANOpen, DeviceNet and ModBus. We would be happy to inform you about further bus interfaces that are currently available .

How to select the most suitable power controller?

  • The required load power and the available voltage determine the type power of the actuator.
  • The kind of load (resistive load, transformer load) determines, together with the requirements on the dynamic accuracy, the type series and the number of phases to be controlled.
  • In case of loads / applications which can be operated in the TAKT mode, a thyristor power unit with saver circuit (2 controlled phases: => smaller, lighter, less power loss, more cost-saving) can be used.
 
Our Power Controller product configurator helps you find the appropriate Power Controller based on your requirements. The selection sheet is a simple Excel file that helps you select the appropriate Power Controller via filter selection. In addition, to select the most suitable power controller for your application, our Power Controller Team is always available to you.

Which commissioning support is available?

  • Thyro-S, Thyro-A
    Easy commissioning by adjustment of potentiometers or software Thyro-Tool Family
  • Thyro-P
    Visualization software Thyro-Tool Family
    Operation via LBA (local operating and display unit)

Are there any questions?

Our Power Controller Team will be glad to help you.