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4 Phase angle (PA)
This mode controls power on the load via modulation of trigger angle q
Example: if power to be transferred to the load is 100%, q = 180°
or
if power to be transferred to the load is 50%, q = 90°
Figure 13
Resistive load
ADDITIONAL FUNCTIONS
Softstart
This type of start can be enabled to limit peak currents in IR lamps with initially cold filament.
Figure 14
80380A_MHW_IR-12/IR-24_11-2015_ENG
Example of firing ramp with phase Soft-Start
Inductive load
19
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