Connecting The Dosing Regulator; Connecting An External Controller To A Servomotor With Analog Control - Grundfos Vaccuperm VGA-113 Instrucciones De Instalación Y Funcionamiento

5.2 Connecting the dosing regulator

Warning
Before connecting, make sure that the valves of all
chlorine containers are closed.
3
Fig. 14 Vacuum connections
Pos. Description
1 Vacuum line to the dosing regulator
2 Overpressure line
3 Vacuum line to the injector
For details on vacuum lines, see section
5.1 Selection of vacuum lines
Only tighten the union nuts of the vacuum
Caution
connections by hand. Do not use any tools. Danger
of damages!
Make sure that the vacuum connections are clean
and dry.
The dosing regulator can be installed outside the chlorine room.
1. Connect the dosing regulator to the line from the vacuum
regulator (1).
2. Connect the line (3) from the dosing regulator, or from the
optional differential pressure regulator, to the injector.
16
5.3 Connecting an external controller to a servomotor
5.3.1 Warnings and notes for electrical connection
5.3.2 Circuit diagram servomotor with analog control
VGA-111
2
1
5.3.3 Connecting the external controller Conex
Connect the terminals of the servomotor according to the terminal
connection diagram of the controller.
with analog control
Warning
Disconnect servomotor from mains before
removing the cover.
Observe the local safety regulations.
Protect unused screwings, cable connections and
plugs against corrosion and moisture with suitable
caps.
To ensure electromagnetic compatibility (EMC) signal
lines must be shielded, and guided in different cable
Caution channels than mains cables.
The shield must be connected to PE or ground on the
side of the counterpart.
Before connecting the mains cable check, if the
mains voltage indicated on the type plate
Caution
corresponds to the local mains voltage. Wrong
voltage can lead to damages of the servomotor.
Depending on the optional components selected,
Note connect mains plug to mains directly or via the
terminal box.
51 52
L N
-
+
L1 N PE 4(0) - 20 mA
Fig. 15 Servomotor with analog control
Warning
See section 5.3.1 Warnings and notes for electrical
connection for warnings and notes relating to
electrical connection.
51 52
L N
-
+
L1 N
PE 4(0) - 20 mA
30 29
Fig. 16 Terminal connection diagram Conex
54 55 56 57
-
+
max. 125 V
Error message
®
DIA-2Q
56
54 55 57
-
+ max. 125 V
Error message
Conex DIA-2Q
®
DIA-2Q