Neptune NXP-M, Руководство по эксплуатации, Страница: 26 / 44

Electrical installation
Description of connection sockets
26
Stepper motor-driven diaphragm dosing pump NXP-M and NXP-P Operating instructions
9.2.3 Connection socket 3
9.2.3.1 Level input
Connection for level monitoring of a dosing tank (e.g. a suction line with a
float switch).
n
Alert and main alarm
n
Potential-free contact
n
NO contact
n
Connection M12x1 cable with plug connector, A-coded
n
Assignment of pin 1, 2, 3
For more details on installing the level monitoring system, see on page
22.
i A matching connection cable with A-coded plug connector is
integrated in the suction lines / level monitoring systems of
Neptune. An adapter is required if using older suction lines
with a 0.14 inch jack plug. You can find this adapter and
additional cables in the Neptune price list.
Pin M12x1
(A-coded)
Assignments Connection Cable colour*
1 Pre alarm
3
2
1
Brown BN
2 Main alarm White WH
3 Ground (GND) Blue BU
4 - - - Black BK
Table 19: Connection socket 3
* Applies to cable colours of cables from Neptune. No liability is accepted
for cables from other manufacturers.
Removing the conductive rubber band
Fig. 22: Conductive rubber band in connection socket 3
Remove the conductive rubber band before inserting the cable in the
connection socket.
After the cable has been removed, the conductive rubber band must be
reinserted in the connection socket. Insert it between pins 1 and 2 and 3
and 4 as shown in Fig. 22.