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7.4 User HMI
When the PLC is powered up, the HMI application starts up
automatically with a delay of 10 seconds. During the launch of the
application, a startup screen with the Grundfos logo is displayed.
After startup the user screen is displayed.
The user screen comprises several elements:
Fig. 13 User screen
Pos. Description
Function
[Service]
B1
Opens the service menu screen
button
[Start/Stop/
Used to start/stop the system and to
B2
Reset] button
reset alarms
Main page
S1
Shows the status of the modules
content
S2
Grundfos Eye
Shows the status of the system
GRM
S3
connectivity
Shows the status of GRM connectivity
status symbol
The function of each element is described in the following
subsections.
7.4.1 [Service] button
When the service button is pressed, the service menu screen
pops up:
S4
S5
S6
B5
Fig. 14 Service menu screen
Pos. Description
B3
Closes the service menu screen.
Activates the sleep function. See section:
B4
function.
Login button for certified service staff to log in to the
B5
service menu.
If the user is not able to rectify the cause of an alarm,
S4
certified service staff must be called.
S5
Shows the last five tasks performed by the system
S6
Shows the active alarm / warning codes of the system
B3
B4
7.4.2 Sleep
7.4.2 Sleep function
The sleep function must be used, when the system is stopped for
longer time periods e.g. for external maintenance or holiday. See
also section:
10. Taking the system out of
Depending on the installed modules, different internal cleaning
sequences are automatically performed before the system stops
and switches into semi-automatic mode.
The cleaning sequence consists of up to three steps:
1.
Backwash of GAC filter
2.
Backwash of UF membrane
3.
Backwash of self-cleaning prefilter
If a module is not installed, the respective sequence is skipped.
While the cleaning sequence is running, button (B4) is flashing
green. When the sequence is completed, the button stays green.
The system remains in semi-automatic mode, until the user
presses the [Start] button again.
7.4.3 Grundfos Eye
The Grundfos Eye shows the current status of the system:
Grundfos Eye
Description
status
If the system is idle without alarm and warning,
the Grundfos Eye is idle in green colour.
If the system is running without any warning or
alarm, the Grundfos Eye is rotating in green
colour.
If the system is idle with warning, the Grundfos
Eye is idle in yellow colour.
If the system is running with any warning and
without alarm, the Grundfos Eye is rotating in
yellow colour.
If the system is in alarm state, the Grundfos
Eye is flashing in red colour.
7.4.4 [Start/Stop/Reset] button
The system can only be stopped, if no internal
cleaning task is running.
If an internal cleaning task is running and the [Stop]
button is pressed, a message is displayed, telling the
Note
user that the system cannot be stopped at the
moment. To stop the system, wait until the internal
cleaning task is completed and press the [Stop]
button again.
Active
Button
system
Description
status
Start the production. Once the
Stopped
production is started, "Start" label will
change into "Stop" label.
Stop the production. Once the
Running
production is stopped, "Stop" label will
change into "Start" label.
If the system is in alarm state, press
this button to reset the alarm after its
cause was remedied.
If the same alarm occurs and is reset
Stopped
3 times in a row, it is no longer
possible for the user to reset it.
Certified service staff must be called in
this case to reset the alarm.
operation.
27
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