BUSCH R5 ATEX - Wiring Diagram Pressure Switch of Water-Oil Heat Exchanger (Optional); Flowchart

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5.7.6 Wiring Diagram Pressure Switch of Water-oil Heat
Exchanger (Optional)
Part no.: 0653000 002
Electrical data:
U = 230 VAC ; I = 1 A
U = 24 … 100 VDC ; I = 0.5 … 2 A
Contact: Normally open
Switch point:
P
trip
= 2 bar (relative) ► min. admissible
pressure
2 4
P >
1
PE
5.8 Flowchart
The machine safety depends on the monitoring accessories sequencing according to the
following flowchart.
Gas pressure
Gas temperature
Start
Cat. 2(i)
P < P warning?
Oil level
sufficient in oil mist
separator?
High gas pressure !
Warning:
P < P trip?
Cat. 2(i)
P < P switch point?
YES
NO
OR
YES
NO
NO
YES
YES
NO
NO
YES
Cat. 2(i)
T < T warning?
High gas temperature !
Warning:
T < T trip?
NO
YES
YES
NO
Cat. 2(i)
T < T switch point?
PSA+/0301
PS+/0301
Oil level
TSA+/0101
TS+/0101
TSA+/0104
TS+/0104
Oil temperature
T < T switch point?
T < T warning?
High oil temperature !
Warning:
T < T trip?
YES
YES
NO
NO
machine
in function?
Start the machine
NO
YES
YES
Stop button activated?
YES
NO
Stop the machine
Stop the machine
Alarm trip
OR
OR
LS-/0201
(Optional)
(Optional)