Grundfos Vaccuperm VGA-113 Instrucciones De Instalación Y Funcionamiento página 17

5.3.4 Connecting the external controller Conex
Warning
See section 5.3.1 Warnings and notes for electrical
connection for warnings and notes relating to
electrical connection.
1. Unscrew the screws of the servomotor hood, and remove the
hood.
2. Establish electrical connections according to the diagram
shown in fig. 17.
– Connect terminals 51 and 52 and, if required, terminals 54
and 55, in accordance with the diagram.
– Connect terminals 56 and 57 in accordance with
requirements; maximum voltage 125 V.
– For low voltages (setpoint/actual value signal lines) use
separate shielded lines with a minimum cross-section of
2
0.5 mm and a maximum length of 1000 m.
– The screen must be connected on one side to the enclosure
earth (earth terminal).
Warning
The internal wiring of the servomotor must never be
modified.
3. Close the hood again and tighten the hood screws.
51
L N
P E
1 2 3 4 5 6
Fig. 17 Terminal connection diagram Conex
Pos. Description
L Phase
Supply voltage input
N Neutral
PE (earth)
51 Signal input (-)
52 Signal input (+)
54 Signal output (-)
55 Signal output (+)
56
Collective error message
57
®
DIS-2Q
52 54 55 56 57
+ +
max. 125 V
Error message
4(0) - 20 mA
Conex DIS-2Q
7 8 9 10 11 12 13 14
®
DIS-2Q
15 16 17 18 19 20 21 22 23
L1 N P E
24 25 26
17