Replacing The Electrical Servomotor; Commissioning; Preparations For Commissioning - Grundfos Vaccuperm VGS-141 Instrucciones De Instalación Y Funcionamiento

4.4.1 Devices without foot (wall mounting)
• Fix drilling jig to the desired place
• Mark the bore holes and bore them
• Put in dowels
• Screw the device to the wall
4.4.2 Devices with foot (floor mounting)
• Place the device at the desired place
• Mark the bore holes
• Remove the device
• Bore the holes
• Put in dowels
• Place the device at the desired place
• Screw the device to the floor

4.5 Replacing the electrical servomotor

Use the hand wheel to set the dosing flow to the 0 % position.
Insert the close-tolerance grooved pin (carrier) into the hand
wheel's servomotor shaft and use 4 nuts (spanner size 10) to
flange-mount the servomotor on the gears.
Warning
When replacing a gas dosing system with an
electrical servomotor, you must observe the
instructions and warnings contained in Sections
5.1.1 Electrical connections,
and 6. Operation.
Scope of delivery of the electrical servomotor
Servomotor, washer discs and nuts
Required tools
Size 10 flat spanner
Checking the 0 % position
The servomotor is set to the 0 % position on delivery.
16

5. Commissioning

5.1 Preparations for commissioning

5.1.1 Electrical connections
Servomotor with analogue control (optional)
5.2.4 Servomotor tests
Servomotor with analogue control (optional), connected, for
example, to a Conex
•
Warning
Never install a damaged drive.
Warning
Switch off mains before connecting!
Electrical connections only by qualified personnel!
Observe local rules for electrical installations!
Depending on the selection of optional components:
Note Mains connection either directly (by the customer) or
via the clamp box.
51 52
L N
-
+
L1 N PE
4(0) - 20 mA
Fig. 17 Circuit diagram for a servomotor with analogue control
®
DIA-2Q
Connect the terminals to the corresponding terminals on the
external controller as shown in the connection diagram.
52
51
L N
-
+
L1 N
PE
4(0) - 20 mA
Conex DIA-2Q
30 29
Fig. 18 Terminal connection diagram for Conex
54 55 56 57
-
+
max. 125 V
Fault message
54 56 57
55
-
+
max. 125 V
®
DIA-2Q