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English (US)
19. Bus signal
The motor enables serial communication via an RS-485 input.
The communication is carried out according to the Grundfos
GENIbus protocol and enables connection to a building
management system or another external control system.
Via a bus signal, you can remote-set motor operating parameters,
such as setpoint and operating mode. At the same time, the
motor 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.
20. Priority of settings
You can always set he motor to operation at maximum speed or
to stop with the Grundfos GO Remote.
If you enable two or more functions at the same time, the motor
will operate according to the function with the highest priority.
Example: If, via the digital input, the motor has been set to
maximum speed, the motor control panel or the Grundfos GO
Remote can only set the motor to "Manual" or "Stop".
The priority of the settings appears from the table below:
* If the bus communication is interrupted, the motor will resume its previous operating mode, for example "Stop", selected with the
Grundfos GO Remote or on the motor control panel.
If you use a bus signal, the number of settings
available via the Grundfos GO Remote will be
reduced.
Priority Start/stop button
Grundfos GO Remote or
control panel on motor
Digital input Bus communication
1 Stop
2 Stop*
3 Manual
4 Max. speed*
5 Stop
6 Stop
7 Max. speed
8 Min. speed
9 Start
10 Max. speed
11 Min. speed
12 Min. speed
13 Start
14 Start
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