Analog Output; Slowmode - Grundfos SMART Digital XL DDA 60-10 Installation And Operating Instructions Manual

7.5 Analog output

Analog out
Output = Input
Actual flow
Backpressure
Bus control
Fig. 34 Configure analog output
The analog output of the pump is parametrised in the
"Setup > Analog output" menu. The following
settings are possible:
Description of output
Setting
signal
Analog feedback signal
(not for master-slave
Output =
application). The analog
Input
input signal is mapped
1:1 to the analog output.
Current actual flow
• 0/4 mA = 0 %
Actual
• 20 mA = 100 %
flow**
see section 7.10 Flow
measurement
Backpressure, measured
in the dosing head
• 0/4 mA = 0 bar
Backpre
• 20 mA = Max.
ssure
operating pressure
see section 7.9
monitoring
Enabled by command in
Bus
Bus control, see section
control
7.17 Bus communication
* 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
connection.
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.
30
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Variant
X X
X X*
X
Pressure
X X
7.4.3 Analog 0/4-20 mA.
5.3 Electrical

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 %.
Enabling the 'SlowMode' function reduces
the maximum dosing flow of the pump to
the set percentage value!
SlowMode
Off
SlowMode (50% max.)
SlowMode (25% max.)
SlowMode menu
Fig. 35
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