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7. Operation
7.1 Display and control elements
P1
+A2
ISO1
Fig. 12 Display and control elements
Pos. Description
P1
HMI touchscreen
+A2
Control cabinet
ISO1 Main breaker
7.2 Main breaker
The main breaker (ISO1) is a two-way electrical device. It will be
either in ON position or in OFF position. It is used to switch on
and off the system.
See also section:
6.7 Power
management.
7.2.1 OFF position
When the main breaker (ISO1) is in OFF position, the external AC
power supply (P2) to the inverter (TB1) and the AC output from
the inverter to the control cabinet (+A2) are isolated. In case a
UPS is used, the external AC power supply (P2) to the UPS and
the AC output from the UPS to the control cabinet (+A2) are
isolated. As a result, all electrical components are in OFF state.
The main breaker should be switched to the OFF
Caution
position in case of emergency and before performing
electrical maintenance of the system.
The DC power supply between solar panels (GC),
inverter (TB1) and batteries (GB) remains
Note
unaffected, when the main breaker is switched ON or
OFF.
7.2.2 ON position
Switch the main breaker (ISO1) to the ON position. This will
power up the system. The PLC has a booting time of 10 seconds.
Subsequently the HMI application starts. If a GRM module is
installed, the GRM interface application starts as well. The GRM
interface application is always running in the background of the
HMI application.
Wait at least 2 minutes before operating the system
Note
from the HMI. See fig. 12, pos. P1.
7.3 Operational modes
The AQpure water treatment system has two operational modes:
•
Automatic mode
•
Semi-automatic mode
These two operational modes are mutually exclusive. The system
can either be in automatic mode or in semi-automatic mode. The
system stores the active operational mode as persistent data. If
the system is in semi-automatic mode and the power to the PLC
is toggled, the system starts up in semi-automatic mode and vice
versa. The two operational modes are described in the following
sections.
26
See section
7.4 User HMI
7.2 Main breaker
7.3.1 Automatic mode
The automatic mode is activated, when the system is started via
the [Start] button at the HMI. In automatic mode the system runs
autonomously without human intervention. A supervision function
monitors the system and detects failures. See section:
7.5 Warnings and
alarms.
7.3.2 Semi-automatic mode
The semi-automatic mode is activated, when the system is
stopped via the [Stop] button at the HMI. In this mode the user
can perform maintenance tasks, which do not require to switch off
the power supply before execution. See section:
Service menu
Only certified service staff is allowed to enter the
Caution
service menu.
After login to the service menu with the service password,
individual tasks can be started via the HMI.
Supervisions that monitor and protect the system against
maloperation remain active in semi-automatic mode, unless
manual control has been activated.
8.
Maintenance.
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