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V1.0 | NRG EtherNet/IP Preliminary User Manual | © 2020 | CARLO GAVAZZI LTD.
EN
Output with Burst firing mode @ 66% control level
Distributed Firing mode
The Distributed firing mode works with a control level and a fixed time-base of 100 full cycles (2 seconds for 50 Hz).
This mode operates with full cycles and it distributes the ON cycles as evenly as possible over the time base. In this
mode, since the resolution is 1% and the time base is of 100 full cycles, the control level is equal to the number of full
cycles over the whole time base.
1% = 1 full cycle every 100 cycles
2% = 2 full cycles every 100 cycles = 1 full cycle every 50 cycles
Output with Distributed firing mode @ 33% control level
Output with Distributed firing mode @ 50% control level
Output with Distributed firing mode @ 66% control level
The advantage of Distributed over Burst is the reduction in thermal cycling. On the other hand, Distributed mode
suffers from worse harmonics/emissions than Burst mode.
Advanced Full Cycle firing
Advanced Full Cycle (AFC) firing works on the same concept as Distributed but rather than distributing full cycles,
half cycles are distributed. This mode also works over a time base of 100 full cycles (200 half cycles). In this mode,
since the resolution is 1% and the time base is of 100 full cycles, the control level is equal to the number of full cycles
over the whole time base. 1% = 2 half cycles every 200 half cycles = 1 half cycle every 100 half cycles 2% = 4 half
cycles every 200 half cycles = 1 half cycle every 50 half cycles
