CD Automation Revo M 1PH, User Manual

Page: 28 / 48

CD Automation srl REVO M User’s Manual
REVO_M08
28
15.2 Burst Firing (BF)
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
VOLTAGE SUPPLY (V)
100%
ON OFF
LOAD VOLTAGE (V)
75%
50%
25%
15.3 Soft Start with Burst Firing S+BF (1Ph Only)
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 ramp cycles:

=3
VOLTAGE SUPPLY (V)
100%
ON OFF
LOAD VOLTAGE (V)
75%
50%
25%