Download TC1028 User manual issue 2

Identification
Identification
The standard version (basic version) of the TC1028 series thyristor unit is equipped with:
The standard version (basic version) of the TC1028 series thyristor unit is equipped with:
• a thyristor firing board ("power board") which generates the thyristor firing and current
and voltage measurement pulses;
• a thyristor firing board ("power board") which generates the thyristor firing and current
and voltage measurement pulses;
• a "driver board" which generates the firing start signals;
• a "driver board" which generates the firing start signals;
• a "potentiometer board" for the adjustment of the delayed thyristor firing (for
inductive loads) and the soft start time.
• a "potentiometer board" for the adjustment of the delayed thyristor firing (for
inductive loads) and the soft start time.
• a "filter board" to protect the thyristor unit operation against transient interference.
• a "filter board" to protect the thyristor unit operation against transient interference.
As an option, the TC1028 power thyristor unit can be equipped with a board which be plugged
into the driver board and converts the instantaneous current into an image of the RMS current
("RMS option board"). The rms value of the load current is displayed using a bargraph and is
retransmitted by a signal from the user terminal block.
As an option, the TC1028 power thyristor unit can be equipped with a board which be plugged
into the driver board and converts the instantaneous current into an image of the RMS current
("RMS option board"). The rms value of the load current is displayed using a bargraph and is
retransmitted by a signal from the user terminal block.
The control system performs, as a function of an analogue input signal, the feedback of the
squared voltage or the squared load current (automatic selection of the highest value).
The control system performs, as a function of an analogue input signal, the feedback of the
squared voltage or the squared load current (automatic selection of the highest value).
The TC1028 thyristor units possess supply variation compensation in the range of +10 % to -15 %
of the nominal voltage.
The TC1028 thyristor units possess supply variation compensation in the range of +10 % to -15 %
of the nominal voltage.
The TC1028 series thyristor units are used to control electrical loads such as:
The TC1028 series thyristor units are used to control electrical loads such as:
• loads with high resistance variations as a function of temperature
• transformer primary circuits
• inductors.
• loads with high resistance variations as a function of temperature
• transformer primary circuits
• inductors.
The following are found on the front fascia:
The following are found on the front fascia:
• the delay adjustment potentiometer for the first firing on inductive loads
or soft start adjustment potentiometer
• the connector for diagnostics
• the bargraph indicating the mean current of the rms current (optional)
• the partial load failure detection adjustment potentiometer
• the "Test" push button to test the PLF alarm adjustment
• the indicator light to display the partial load failure detection.
• the delay adjustment potentiometer for the first firing on inductive loads
or soft start adjustment potentiometer
• the connector for diagnostics
• the bargraph indicating the mean current of the rms current (optional)
• the partial load failure detection adjustment potentiometer
• the "Test" push button to test the PLF alarm adjustment
• the indicator light to display the partial load failure detection.
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TC1028 User Manual
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TC1028 User Manual