4.7 Analog output
The electrical values for current and voltage at the load are recorded by the Thyro-A
Power Controller and can be displayed using an external measuring device or a
graph recorder. Connection to terminals X2:9 (+), against X2:5 ground 1.5mm
grid 3.5. The selectable signal levels are 0-10V, 0-20mA, 4-20mA. The analog out-
put is updated in every supply period (refer to 3.2.4).
The following values may be given:
• load voltage
• load current
• Actual output
4.8 Current transformer
All Thyro-A types have one current transformer per path in their power section.
The current transformer only has local mode wiring.
4.9 Voltage transformer
The load voltage is recorded by the measuring signal given by the supply voltage.
This value is linked with the control angle
or the pulse ratio
* √ (T
). The voltage transformer only has local mode wiring.