En
gl
is
h (
G
B)
38
7.18
Inputs/Outputs
In the "
Setup
>
Inputs/Outputs
" menu, you can
configure the two outputs "
Relay 1
+
Relay 2
" and the
signal inputs "
External stop
", "
Empty signal
" and
"
Low-level signal
".
Fig. 40
Inputs/Outputs
menu
7.18.1 Relay outputs
The pump can switch two external signals using
installed relays. The relay outputs are potential-free.
The connection diagram of the relays is shown in
section
. Both relays can be
allocated with the following signals:
* Factory
setting
** The correct transmission of incoming pulses can
only be guaranteed up to a pulse frequency of 5
Hz.
TM0
6
71
12
29
16
When time or date is changed in
"
Time+date
" menu, timer dosing and timer
relay output functions (Relay 2) are
stopped!
Timer dosing and timer relay output
functions must be restarted manually!
Changing time or date can cause increase
or decrease in concentration!
In/Output
Relay 1
Relay 2
External stop
Empty signal
Low-level signal
>
>
NO
NO
NO
Relay 1
signal
Relay 2
signal
Description
Alarm
*
Alarm
Display red, pump
stopped (e.g. empty
signal, etc.)
Warning
*
Warning
Display yellow, pump is
running (e.g. low-level
signal, etc.)
Stroke
signal
Stroke
signal
Each full stroke
Pump
dosing
Pump
dosing
*
Pump running and dosing
Pulse
input
**
Pulse
input
**
Each incoming pulse
from pulse input
Bus
control
Bus
control
Activated by a command
in the bus communication
Timer
Cycle
See following sections
Timer
Week
See following sections
Contact type
NO
*
NO
*
Normally open contact
NC
NC
Normally closed contact
Continuous operation of the relays on a
high frequency reduces the relay lifetime
significantly.
