En
gl
is
h (
G
B)
30
7.5
Analog output
Fig. 34
Configure analog output
The analog output of the pump is parametrised in the
"
Setup
>
Analog output
" menu. The following
settings are possible:
* Output signal is based on motor speed and pump
status (target flow).
** Signal has same analog scaling as the current
analog input signal. See
Wiring diagram see section
7.6
SlowMode
When the "
SlowMode
" function is enabled, the
pump slows down the suction stroke. The function is
enabled in the "
Setup
>
SlowMode
" menu and is
used to prevent cavitation in the following cases:
•
for dosing media with a high viscosity
•
for degassing dosing media
•
for long inlet lines
•
for large suction lift.
In the "
Setup
>
SlowMode
" menu, the speed of the
suction stroke can be reduced to 50 % or 25 %.
Fig. 35
SlowMode
menu
TM
06
70
94
29
16
Setting
Description of output
signal
Variant
FC
M
AR
Output =
Input
Analog feedback signal
(not for master-slave
application). The analog
input signal is mapped
1:1 to the analog output.
X
X
Actual
flow
**
Current actual flow
• 0/4 mA = 0 %
• 20 mA = 100 %
see section
X
X*
Backpre
ssure
Backpressure, measured
in the dosing head
• 0/4 mA = 0 bar
• 20 mA = Max.
operating pressure
see section
X
Bus
control
Enabled by command in
Bus control, see section
X
X
In all operation modes, the analog output
has a range of 4-20 mA. Exception:
Operation mode 0-20 mA. Here, the
analog output range is 0-20 mA.
Output = Input
Actual flow
Backpressure
Bus control
❑
❑
❑
Analog out
Enabling the '
SlowMode
' function reduces
the maximum dosing flow of the pump to
the set percentage value!
TM
06 709
4 291
6
Off
SlowMode (50% max.)
SlowMode (25% max.)
❑
❑
SlowMode
