Operation Modes; Manual; Pulse; Change Operation Modes - Grundfos SMART Digital S DDE 6-10 Instrucciones De Instalación Y Funcionamiento

The status LEDs indicate the following operating
statuses and faults:
LED colour Pump status/fault
Green (flashing) stop
Green running
Red-green
standby (external stopped)*
(flashing)
Yellow low-level signal*
Red empty signal, pump stops*
Red (flashing) motor blocked, pump stops
* only DDE-PR/P control variant

6.2 Operation modes

Following operation modes are available:
• Manual, see section
• Pulse*, see section

6.2.2 Pulse

* Applies to DDE-PR/P control variant.

6.2.1 Manual

In this operation mode, the pump doses constantly
the dosing quantity set by the adjustment knob.
The setting range depends on the pump type:
Type
DDE 6-10
DDE 15-4
6.2.2 Pulse
Applies to DDE-PR/P control variant.
In this operation mode, the pump doses the set
dosing volume for each incoming (potential-free)
pulse, e.g. from a water meter. The pump
automatically calculates the optimum stroke
frequency for dosing the set volume per pulse.
The calculation is based on:
• the frequency of external pulses
• the set stroke volume in percent.
The dosing quantity per pulse is set to a value
between 0.1 % and 100 % of the stroke volume using
the adjustment knob.
The setting range depends on the pump type:
Type Setting range [ml/pulse]
DDE 6-10
DDE 15-4
The frequency of incoming pulses is multiplied by the
set dosing volume. If the pump receives more pulses
than it can process at the maximum dosing flow, it
runs at the maximum stroke frequency in continuous
operation. Excess pulses will be ignored.
6.2.1 Manual
Setting range [l/h]
0.0060 - 6
0.0150 - 15
0.0008 - 0.81
0.0016 - 1.58

6.2.3 Change operation modes

Applies to DDE-PR/P control variant.
1. Set adjustment knob to 0 %.
2. Connect mains supply
(see section 4.3 Electrical
3. Hold down the [Operation mode] key for at least
5 seconds.
The new operation mode is saved.

6.3 Inputs/outputs

Applies to DDE-PR/P control variant.

6.3.1 External stop

The pump can be stopped via an external contact,
e.g. from a control room. When activating the
external stop signal, the pump switches from the
operating state "Running" into the operating state
"Standby". According to the selected operation
mode, the respective LED flashes red-green.

6.3.2 Empty and low-level signals

In order to monitor the filling level in the tank, a
dual-level sensor can be connected to the pump.
The pump responds to the signals as follows:
Sensor signal Pump status
• LED lights up in yellow
Low level
• Pump continues running
• LED lights up in red
Empty
• Pump stops
When the tank is filled up again, the pump
Caution
restarts automatically!
connection).
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