Burst Firing; Soft Start With Burst Firing - CD Automation Revo C 3PH User Manual

13.3 Burst Firing

The Burst Firing is similar to the Single Cycle, but consecutive cycles ON are selectable between 2 and
255, with input signal equal at 50%.
Burst Firing is a method zero crossing that it reduces the electromagnetic interferences because the
thyristor switches at zero voltage crossing.
The example show the Burst Firing with Burst cycles=4
ON OFF

13.4 Soft Start with Burst Firing

This is an additional function to the Burst Firing. The unit start in phase angle mode with a ramp starting
from zero up to the full tension in the cycles number set in the parameter.
When the ramp is over, the thyristor unit will stay in conduction at full voltage up to the end of cycles of
burst. The S+BF firing is used to control small inductive loads to avoid inrush surge current and to
reduce the electromagnetic interferences.
The example show the firing with Burst cycles =4 and start ramp half cycles=3
ON OFF
Neut-Eng-REVO-C-3PH-300-800A-Thyristors-Units
REVO C
VOLTAGE SUPPLY (V)
LOAD VOLTAGE (V)
VOLTAGE SUPPLY (V)
LOAD VOLTAGE (V)
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User's Manual
25%
50%
75%
100%
25%
50%
75%
100%