Grundfos DDA 7.5-16 User Manual

English (GB)
35
6.16 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. 37 Inputs/Outputs menu
6.16.1 Relay outputs
The pump can switch two external signals using
installed relays. The relays are switched by
potential-free pulses. The connection diagram of the
relays is shown in section 4.3 Electrical connection.
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
5Hz.
TM04 1152 1110
Warning
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

Grundfos DDA 7.5-16 Specifications

General

Max Flow Rate	7.5 l/h
Max Pressure	16 bar
Protection Class	IP65
Operating Temperature	0°C to +45°C
Analogue Control	4-20 mA
Pulse Control	Yes
Level Control	Yes
Power Supply	100-240 V, 50/60 Hz
Material	Stainless Steel