Electrical Connection - Grundfos Vaccuperm VGS-141 Montage- Und Betriebsanleitung

• Connect the terminals to the corresponding terminals on the external controller (Conex
connection diagram.
Feedback potentiometer
1 2 3 4 5 6 7
IDM
Measuring amplifier
Fig. 21 Terminal connection diagram for Conex

Electrical connection

See Section 5.2.4
Note
electrical connection!
1. Unscrew the hood screws and remove the hood.
2. Establish the electrical connections in accordance with the
circuit diagram; see fig. 20.
– Connect terminals 18, 19 and 20 in accordance with
requirements; voltage < 50 V.
3. Determine the direction of rotation and, if necessary, correct it.
Determining the direction of rotation
The internal wiring means that the direction of rotation (looking
through the drive towards the output shaft) and limit switches are
assigned as follows:
• If the mains voltage is present at terminal 2, the output shaft
rotates anticlockwise (in the direction "open/max.").
– This direction of rotation is restricted by the upper switch
(max.). If the switch is activated, the mains voltage is
present at terminal 4.
• If the mains voltage is present at terminal 3, the output shaft
rotates clockwise (in the direction "close/min.").
– This direction of rotation is restricted by the lower switch
(min.). If the switch is activated, the mains voltage is present
at terminal 5.
• If the drive rotates in the opposite direction to the control
commands, swap over the connections of terminals 2 and 3.
Warning
The internal wiring of the drive must never be
modified.
Close the hood again and tighten the hood screws.
18
18 19 20
< 50 V
< 50 V
8 9 10 11 12 13 14
®
DIS-2Q on a servomotor with reversing potentiometer
for warnings and notes relating to
®
DIS-2Q in the example) as shown in the
SL (max.) SR (min.)
4 5
1 2 3
N
15 16 17 18 19 20 21 22 23
potential-free relay outputs
Vacuum meter with limit contacts (option)
• Connect the terminals of the plug with the corresponding
terminals of an external evaluation device according to the
connection chart.
1 2 3
PE
Fig. 22 Connection chart vacuum of meter with limit contacts
Vacuum sensors (option)
• Connect the terminals of the plug with the corresponding
terminals of an external evaluation device according to the
connection chart.
2
3
1
+ -
24 V DC
Fig. 23 Connection chartof vacuum sensor
P E
24 25 26
N PE
L1
+
4-20 mA
-