Endress+Hauser Liquiline Control CDC90, Руководство по эксплуатации

Страница: 36 / 118

Electrical connection Liquiline Control CDC90
36 Hauser
Connecting the supply voltage to BASE-E
L+ N- PE
A
43
42
41
86
85
86
85
98
97
88
87
32
31
32
31
B
A0015872
 27 Power supply connection on the BASE-E
A Internal power supply cable
B Extension power unit
85
85
86
86
41
43
42
L/+ N/–
*
Power
87
88
97
98
31
31
32
32
SD
Display
1
2
Sensor
0/4 ... 20 mA
Sensor supply
+
+
–
+
+
–
1
2
Service
PK
GY
PK
GY
1
2
–
L/+ N/– PE
BN
WH
GN
YE
BN
WH
GN
YE
87
88
97
98
+
–
A
B
+
–
A
B
–
Alarm
HART
Power
(internal)
B
A0015873
 28 Overall wiring diagram BASE-E and
extension power unit (B)
Connecting the supply voltage
1. The Mains supply connection has to be installed permanently (no mains power plug).
2. Route the power supply cable into the housing through the suitable cable entry.
3. Step 2 applies
only to the 100 to 230 V AC power unit .
Connect the protective ground of the power unit to the threaded bolt specially
provided on the cable mounting rail.
4. Ensure the adequate connection to the protective earthing system of the building.
5. Connect the cable cores L and N (100 to 230 V AC) to the plug-in terminals on the
power unit in accordance with the wiring diagram.
1 2 3 4 5
 29 Protective ground or grounding
connection
1 Protective ground of power unit
2 Serrated washer and nut
3 Protective ground / ground cable, provided by
customer (min. 0.75 mm
2
( 18 AWG))
1)
4 Serrated washer and nut
5 Mounting bolts
1) For a fuse with a rating of 10 A. For a fuse with a rating of 16 A, the protective ground / ground cable
must have a cross-sectional area of at least 1.5 mm
2 ( 14 AWG).