Electrical installation
23
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200318
BA-10491-02-V01
Piston diaphragm dosing pump
MEMDOS KMS LB/LA
Operating instructions
9.2 Description of connection sockets MEMDOS KMS
LA
4
2
1
3
5
Fig. 9: Connection sockets 1 – 5
Connection
Input
1
Release input
2
Analogue input 0/4 – 20 mA
3
Level input
Tab. 18: Inputs of the control unit
Connection
Output
1
Stroke feedback output
2
Analogue output 0/4 – 20 mA
4
Fault reporting relay output
Tab. 19: Inputs of the control unit
Connection
Programming connection
5
Programming connection (for factory settings)
Tab. 20: Inputs of the control unit
9.2.1 Connection socket 1
9.2.1.1 Stroke feedback
All strokes are registered in the pump via a separate stroke counter; this
is outputted via the stroke feedback output.
The stroke feedback output is used to evaluate the signal in a PLC (stroke
counting for batch mode). The signal can also be used to detect the pump
run.
One contact is closed per stroke and a 24 V DC voltage signal is issued.
n
Closer NO
n
Short-circuit proof
n
Load capacity: max. 20 mA
Pin
M12x1
(A-coded)
Assignments
Connection Cable colour*
2
DIG OUT 1
(24 V out)
24 V
0 V
White
WH
1
GND
Brown
BN
Tab. 21: Connection socket 1
* Applies to cable colours from Lutz-Jesco GmbH. No liability is accepted
for cables from other manufacturers.
9.2.1.2 Release input
Using the Release input, it is possible to start or stop the dosing pump ex-
ternally. The contact is open when not switched. 24 V DC are applied to
pin 4. Connection with an external switch enables closure of the contact,
thus withholding clearance.
n
Closer NO
n
I
max
(with 24 V) = 3 mA
n
Switching level high > 15 V DC
Pin
M12x1
(A-coded)
Assignments
Connection Cable colour*
3
DIG IN 1
IN
24 V
Blue
BU
4
24 V DC OUT
Black
BK
Tab. 22: Release input
* Applies to cable colours from Lutz-Jesco GmbH. No liability is accepted
for cables from other manufacturers.
