Bus Signal; Priority Of Settings - Grundfos TPE 1000 Serie Notice D'installation Et De Fonctionnement

15. 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, it is possible to 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.
If a bus signal is used, the number of settings
Note
Note
available via the Grundfos GO Remote will be
reduced.

16. Priority of settings

The motor can always be set to operation at max. speed or to
stop with the Grundfos GO Remote.
If two or more functions are enabled 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 max.
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:
Priority Start/stop button
Stop
1
2
3
4
5
6
7
8
9
10
11
12
13
14
* If the bus communication is interrupted, the motor will resume its previous operating mode, for example "Stop", selected on the motor
control panel or with the Grundfos GO Remote.
30
Control panel on motor or
Grundfos GO Remote
Stop*
Manual
Max. speed*
Min. speed
Start
Digital input Bus communication
Stop
Max. speed
Min. speed
Max. speed
Min. speed
Start
Stop
Start