Thyristor Firing Mode - Honeywell CD3200 User Manual

User's Manual ver. 2.0 CD3200 up to110A Honeywell

7. Thyristor firing mode

7.1 Phase Angle + Current Limit (PA)
With Phase Angle is possible to control the power to the load allowing to Thyristor to be in
conduction for a variable part of the voltage supply halt cycle. The load power can be adjusted
from 0 to 100% as a function of analog input signal, normally delivered by temperature controller
or by potentiometer. Normal it's used with inductive loads. The only disadvantage with phase
angle is the generation of interferences that can be reduced with filters.
V
LINE VOLTAGE
T
LOAD SUPPLY
T
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