Electrical Connections - Grundfos AQC-D13 Montage- Und Betriebsanleitung

10.5 Electrical connections

Warning
The electrical connection should be carried out by
qualified personnel!
Before connecting the supply cables, check that the
supply voltage specified on the nameplate
corresponds to the local conditions!
Before connecting the supply cables, switch off the
electricity supply!
Observe the local safety regulations!
Protect the cable connections and plugs against
corrosion and humidity.
Connect an earth leakage circuit breaker in front of
the measuring amplifier.
Preassembled systems
The preassembled systems are prewired.
1. Connect an earth leakage circuit breaker in front of the
measuring amplifier.
2. Connect the electricity supply to the measuring amplifier.
Observe the installation and operating instructions of
Caution
the measuring amplifier and controller!
AQC-D13 measuring cell
The cables are not preconnected. See section
Note 10.4 Preparing the electrode cable for connection to
the measuring amplifier.
Observe the installation and operating instructions of
Caution
the measuring amplifier and controller!
1. Connect electrodes to the corresponding terminals of the
measuring amplifier.
2. Connect measuring electrode (J) to the corresponding
terminals of the measuring amplifier. Fit the screen according
to the installation and operating instructions of the measuring
amplifier and controller.
3. Connect the water sensor to the corresponding terminals of
the measuring amplifier.
4. Connect an earth leakage circuit breaker in front of the
measuring amplifier.
5. Connect the electricity supply to the measuring amplifier.
Before connecting the supply cables, check that the
supply voltage specified on the nameplate
Caution corresponds to the local conditions!
Observe the installation and operating instructions of
the measuring amplifier and controller!
14
M B/RG/C Pt 100
1
2
7
6
9
10
8
Sensorinterface
1/11 1/13 4/1 4/3 3/1 3/3
A
1/12 1/14 4/2 4/4 3/2 3/4
Fig. 16 Conex DIA-1 / DIA-2 / DIA-2Q for panel-mounting
15 17 19 21 23 25 27 29 31 33 35
20
16 22 24 26 28 30 32 34 36
18
1
2
10
COM NC 9
12
11
11
12
Fig. 17 Conex DIA-1 / DIA-2 / DIA-2Q for wall-mounting
20 21 22
19
14 16
1
COM NC
11 12
6
9
10
8
12
Fig. 18 Conex DIS-D
1
2
11
Conex
2/3 2/4
+ -
COM
12
11
B
NC
12
37 38 39 40 41 42
1
2
6
7
8
2
7