Jesco MAGDOS LK, Operating Instructions Manual

Page: 27 / 60

Electrical installation
Description of connection sockets
27
© Lutz-Jesco GmbH 2015
Subject to technical changes.
150225
BA-10221-02-V03
Stepper Motor-driven Diaphragm Dosing Pump
MAGDOS LK
Operating Instructions
9.2.1 Connection socket 1
Connection socket 1 is equipped with an optocupler output and a
switching input.
The optocupler can be configured for stroke feedback or a fault message.
The connections and switch data are listed in the following tables.
Pin M12x1
(A-coded)
Assignments Connection Cable colour*
1 Optocoupler
collector (+)
1
2
Brown BN
2 Optocoupler
emitter (-) White WH
3 Ground (GND)
3
4
Blue BU
4 External On/Off Black BK
Tab. 22: Connection socket 1
* Applies to cable colours of cables from Lutz-Jesco GmbH. No liability is
accepted for cables from other manufacturers.
Pin Function
Optocupler (Pin 1&2) max. 30V DC, max. 5mA
Release input (Pin 3&4) Potential-free contact
Opener NC or closer NO,
Freely programmable
Tab. 23: Technical data connection socket 1
9.2.1.1 Stroke feedback output
At the stroke feedback output, the dosing pump reports back each
executed stroke to the pulse input of another dosing pump. In this way, it
is possible to network several dosing pumps and to trigger synchro nized
dosing strokes.
The stroke feedback output can continue to be used e.g. to evaluate the
signal in a PLC (stroke counting for batch mode).
Fig. 27: Synchronization of several dosing pumps by means of stroke feedback and pulse
control
9.2.1.2 Fault reporting optocupler
The optocupler will notify dosing pump faults upon activation of this
function. The message can be evaluated e.g. with a PLC.
For information on how to set the function of the release input, see 10.6.3
„Set “Alarm output” menu item“ on page 31.
9.2.1.3 Release input
Using the Release input, it is possible to start or stop the dosing pump
externally.
For information on how to set the function of the release input, see 10.6.5
„Set “Release input” menu item“ on page 31.
9.2.2 Connection socket 2
9.2.2.1 Pulse input
The pulse input makes it possible to control the delivery capacity by
means of pulses. The system regulates the delivery capacity by means of
the dosing pump‘s stroke frequency and number of strokes in depend-
ence on the number of pulses and the pulse spacing.
n
Provided potential-free contact
n
For potential-free NO contact, e.g. a contact-type water meter
n
Pulse length min. 4 ms
For information on setting the Pulse input operating mode, see
page 36.
Pin M12x1
(A-coded)
Assignments Connection Cable colour*
1 Pulses
1
3
Brown BN
2 - White WH
3 Ground (GND) Blue BU
4 - - - Black BK
Tab. 24: Connection socket 2
* Applies to cable colours of cables from Lutz-Jesco GmbH. No liability is
accepted for cables from other manufacturers.
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
Programmable NC or NO contact