The unit is controlled by analogue or logic signals.
The input analogue signals have two possible voltage ranges: 0 to 5V or 0 to 10V and a current
range of: 4 to 20mA.
The input logic signals have the following nominal values: 5V, 10V or 20mA.
Local control is possible via a potentiometer or external contacts. (The input must be configured
as 0 to 5V code 0V5)
The 5V,0.5mA user-voltage output on terminal 7 and 9 is intended for this purpose.
The electronics of the TE300 controllers are self-supplied from the power voltage and do not
require external connections.
The control method of the TE300 series includes line voltage squared (V2) compensation for
line variations in the range +10% to -15% of the nominal voltage of the controller.
TE300 series controllers have several thyristor firing modes:
- Logic ON-OFF
- Cycle time modulation (Burst-firing with four possible cycle times)
- Advanced Single-cycle (firing by complete cycles separated by a complete number of
half-cycles of non-firing).
Thyristor firing ensures the absence of any DC component in load currents when connected in
open delta or in star with neutral configurations. .
ATE300 series controller is equipped with:
·A‘driver board’ which generates thyristor firing pulses, implements control and
provides power for the electronics. This board is also used for the signal and
operating mode configurations
·A‘filter board’ to ensure Electromagnetic Compatibility in accordance with the test
standard and to protect the controller from transient interference.
The filters which provide immunity against electromagnetic interference are located:
· Between the power phases
· Between the phases and the safety earth connector
The user terminal block below the controller is used for the control signal connection without
having to open the front door of the unit.
A green LED indicating thyristor firing (‘ON’) is located on the front facia.
TE300 power controllers are designed to be bulkhead or DIN rail mounted.
The 63A rated limit must be permanently fan-cooled.
The fan power supply of either 115V or 230V should be specified when ordering the controller.
TE300 User manual1-4
