BUSCH RA 0255 D - Wiring Diagram Pressure Switch; Wiring Diagram Pressure Transmitter; Wiring Diagram Level Switch

5 | Installation
20 / 36 0870570604_RA0165-0305D_Ex_-0011_IM_en
5.7.3 Wiring Diagram Pressure Switch
Part no.: 0653539030
Supplier reference: United Electric Controls
H100 (100 Series)
Maintenance procedure:
Procedure B
P&ID position: PS+/0301
Electrical data:
U
i
=49VDC ; I
i
=3A ; L
i
=0 µH; C
i
=0 pF
Contact: Normally closed
2
1
P
Switch point: P (PS+/0301) = 1500 hPa (mbar) abs. (factory default adjustment)
5.7.4 Wiring Diagram Pressure Transmitter
Part no.: 0653204 444
Supplier reference: Wika IS-3
Connector: M12x1, 4-pin
P&ID position: PSA+/0301
1 2
4 3
3
1
+
-
1 = Brown ; 3 = Blue
Electrical data:
U
i
=30VDC; I
i
=100mA; P
i
=800mW; L
i
=0µH; C
i
=16.5nF
4 ... 20 mA ► 0 ... 1.6 bar (abs.)
Warning signal:
P
warning
(PSA+/0301) = 1.4* bar ► 18 mA
*1400 hPa (mbar) abs.
Trip signal:
P
trip
(PSA+/0301) = 1.5* bar ► 19 mA
*1500 hPa (mbar) abs.
5.7.5 Wiring Diagram Level Switch
Part no.: 0652 556 531
Supplier reference:
Endress&Hauser FTL50/FEL58
Connector: M12x1, 4-pin
P&ID position: LS-/0201
1 2
4 3
4
1
L
1 = Brown ; 4 = Black
Electrical data:
U
i
= 16 VDC ; I
i
= 52 mA ; P
i
= 0.17 W ; C
i
= 0 nF
Switching element function: NAMUR
Contact: Normally closed
Switch point:
L
warning
= LS-/0201 ► pin 1 + 4 ► low level “stop the machine”
I > 2.2 mA ► Level: OK
I > 1 mA ► Level: not OK ► “stop the machine”