Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
3 INSTALLATION
CURRENT
SOURCE SINK
Fig. 3.9
Positionning switch 1
Connecting compact transmitter 8225, 12-30 VDC, with cable glands, with relays,
to a PLC
The 4-20 mA output of the transmitter, 12-30 VDC with relays can be connected to a PLC.
Depending on the PLC type, set switch [1] to position "SOURCE" or to position "SINK"
(see figures below and 3.9).
4-20 mA
+
-
Switch [1]
(see fig. 3.9)
CURRENT
SOURCE SINK
Without
With
SENSOR
1
PT1000
2
3
CELL
4
Connection in sourcing mode
(*) If direct earthing is impossible, connect a 100 nF/50 V capacitor between the negative terminal and the earth.
Fig. 3.10
Connecting compact transmitter, 12-30 VDC, with cable glands, with relays, to a
PLC
Only manipulate the switch when the device
is not powered.
Switch 1 :
- position SOURCE: the current is supplied by the transmitter
- position SINK: the current enters into the transmitter
F1
+
-
12-30 VDC
(*)
Iout
PE
NC L+
L-
PE
PE
Iout
L+
L-
Supply
12..30Vdc
E-23-
CONDUCTIVITY 8225
4-20 mA
+
-
Switch [1]
Iout
(see fig. 3.9)
CURRENT
SOURCE SINK
Without
With
SENSOR
1
PT1000
2
3
CELL
4
Connection in sinking mode
F1
+
-
12-30 VDC
(*)
PE
NC L+
L-
PE
PE
Iout
L+
L-
Supply
12..30Vdc
Publicité
Table des Matières
