Configuration of the Speed Detection
Fig. 147:
Internally determined speed flags
The electrical frequency measurement starts at 15 Hz. So 15 Hz is usually the lowest
speed limit. This corresponds for a 4-pole synchronous generator to 450 rpm at 50Hz.
The rpm measurement allows lower speed limits. With a speed sensor the speed can be
configured down to 5 Hz.
Usually both command variables 02.36 and 02.37 are entered in the LogicsManager
equation for detecting speed.
Fig. 148:
LogicsManager for detecting speed
The result of the LM »Speed detection« goes directly into the start / stop logic and other
functions of the easYgen. Through the LogicsManager approach other sources can be
taken into account.
215
easYgen-3000XT Series
B37574
4 Configuration
4.4.1.2 Engine Start/Stop
Released