Electrical Cabinet Fire Protection System Program (ZELIO SOFT - FBD)
Автор: Samira Khanahmedova
Загружено: 2021-01-24
Просмотров: 1114
This program is dedicated to the fire safety system of the electrical cabinet.
1. When analog input – ib=0 V, then temperature of the electrical cabinet t=250 deg.
2. When analog input – ib = 9.9 V, then temperature of the electrical cabinet t=300 deg. and first ventilator Q1 is activated
3. When t=350 deg. and second ventilator Q2 is activated
4. When t=400 deg. both ventilators stops and flashing lamps Q3 and Q4 (for fire hazard warnings) of the electrical cabinet light up after 2 sec. the alarm goes on and the power supply is cut off.
Parameters of the Gain block calculated using an expression: Y=(A/B)*X+C;
The Schmitt Trigger blocks are usrd to set the temperatures and convert the analog signal to discrete.
To turn off the ventilators (fans) logic elements AND, NOT are used;
To flesh the lamps taymers type Li are used.
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