Operation
Operating modes
42
© Lutz-Jesco GmbH 2014
BA-10103-02-V01
Stepper Motor-driven Diaphragm Dosing Pump
MEMDOS SMART LK
Operating instructions
11.2.1.3 Stopping the dosing pump
Press
Stop
.
The system displays the "Stop" signal and
Stop
changes to
Start
. Press
Start
to restart the dosing pump.
Dosing pump has stopped.
i
Pressing
Menu
does not interrupt dosing!
You do not stop the dosing pump until you change to a
different operating mode using the menu.
11.2.2 Pulse input
In the
Pulse input
operating mode, the system regulates the stroke
frequency and the number of strokes in dependence on the number of
pulses and the pulse spacing of the pulse signal that is connected at the
pulse input (see chapter 9.2.2.1 „Pulse input“ on page 31).
11.2.2.1 Selecting the operating mode
1.
Press
Menu
.
2.
Use the or key to choose the
Operating mode
menu item and
press
OK
.
3.
Use the or key to choose the
Pulse input
menu item and press
OK
.
The dosing pump displays the current confi guration of this operating
mode's parameters (Menu 3.31).
Pulse input
1 Impulse = 1 Stroke
Memory = 1 Stroke
Menu Mode
3.31
OK
Setup
Fig. 50: Parameters of the operating mode
4.
Press
OK
.
The dosing pump displays the start screen of
Pulse input
mode.
Pulse input
Menu Reset
Start
Liter
h
0%
0.00
Setup
Fig. 51: Start screen of Pulse input
11.2.2.2 Choosing the pulse input mode
You can choose from the following modes in
Pulse input
operating
mode:
Type
Explanation
Strokes
Transmission and reduction of the number of
pulses compared to the number of strokes
Output
Delivery of a fi xed output per pulse
Water meter
Operation on a contact-type water meter
Tab. 37: Explanation of pulse input modes
i
The system marks the currently active mode by displaying
(On)
after the menu item. In the factory default setting, the
Strokes
mode is preselected:
Strokes (On)
.
1.
Press
Setup
.
The dosing pump displays the current confi guration of this operating
mode's parameters (Menu 3.31).
2.
Press
Mode
.
3.
Use the or key to choose a language and press
OK
.
The dosing pump displays the current confi guration of this operating
mode's parameters (Menu 3.31).
4.
Press
OK
.
The dosing pump displays the start screen of
Pulse input
mode.
11.2.2.3 Pulse input modes
The parameters that you can set are different depending on the mode.
Strokes
The
Strokes
pulse input mode offers the following confi guration options:
Parameter
Explanation
Strokes p.
pulse
Specifi es the required number of strokes that the
dosing pump carries out per pulse. in this
connection, the system determines the stroke
frequency on a dynamic basis based on the time
between the last two pulses.
Stroke frequency = number of strokes/pulse
spacing
Default settings: 1 stroke
Adjustment range: 1 – 999 strokes
Pulses p.
stroke
Specifi es the required number of pulses that
must be connected to the input to trigger a
stroke.
Default setting: 1 pulse
Adjustment range: 1 – 999 impulses
Stroke buffer
The strokes that have still to be executed are
saved in the stroke buffer. If stroke multiplication
is set, the system writes all the strokes belonging
to one pulse into the stroke buffer. With each
pulse, the number of strokes in the accumulator
increases; with each executed stroke, it
decreases. The limit of the stroke buffer must be
raised to save pulse requests that arrive during
execution of the strokes from the previous pulse
request. If the number of requested strokes
exceeds the stroke buffer capacity, the system
issues a "Stroke buffer maximum" message.
Default setting: 1 stroke
Adjustment range: 1 – 999 strokes
Tab. 38: Strokes confi guration type
