Bus Signal; Priority Of Settings - Grundfos TPE2 D Manual Del Usuario

19. Bus signal

The pump supports serial communication via an RS-485 input.
The communication is carried out according to the Grundfos
GENIbus protocol and enables connection to a other pumps as
well as a building management system or another external control
system.
Via a bus signal, you can remote-set pump operating parameters,
such as setpoint and operating mode. At the same time, the pump
can, via the bus, provide status information about important
parameters, such as actual value of control parameter, input
power and fault indications.
Contact Grundfos for further information.
If you use a bus signal, the number of settings
available via Grundfos Go are reduced.

20. Priority of settings

You can always set the pump to stop by pressing
pump control panel. When the pump is not in Stop mode, you can
always stop the pump by continuously pressing
you can set the pump to maximum speed by continuously
pressing . You can always set the pump to operation at
maximum speed or to stop with Grundfos GO.
If two or more functions are enabled at the same time, the pump
will operate according to the function with the highest priority.
Example
If you have set the pump to maximum speed via the digital input,
the pump control panel or Grundfos GO can only set the pump to
Manual or Stop.
The priority of the settings appears from the table below.
Priority Start-stop button
1 Stop
2
3
4
5
6
7
8
9
10
11
12
13
14
15
* "Stop" and "Max. speed" settings made with Grundfos GO or on the motor control panel can be overruled by another operating-mode
command sent from a bus, for example "Start". If the bus communication is interrupted, the motor resumes its previous operating mode,
for example "Stop", selected with Grundfos GO or on the motor control panel.
on the
. Furthermore,
Grundfos GO or control panel on the
motor
Stop*
Manual
"Max. speed"*/
"User-defined speed"
"Min. speed"
"Start"
Digital input Bus communication
Stop
"User-defined
speed"
Stop
"Max. speed"
"Min. speed"
"Start"
"Max. speed"
"Min. speed"
"Start"
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