Elektro-Automatik PSI 9000 DT Series, Руководство по эксплуатации

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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
ea1974@elektroautomatik.de
PSI 9000 DT Series
3.6 Alarms and monitoring
3.6.1 Definition of terms
There is a clear distinction between device alarms (see „3.3. Alarm conditions“ ), caused by the overvoltage protec-
tion or overheating protection, and user defined events such as OVD (overvoltage detection). Whilst device alarms
serve to protect the device and the connected load by instantly switching off the DC output, user defined events
can either switch off the DC output (Action = ALARM) or simply give an acoustic signal to make the user aware.
The actions driven by user-defined events can be selected:
Action Impact Example
NONE
The user-defined event is disabled.
SIGNAL
On reaching the condition which triggers the event, the action SIGNAL will
show a text message in the status area of the display.
WARNING
On reaching the condition which triggers the event, the action WARNING
will show a text message in the status area of the display and pop up an
additional warning message.
ALARM
On reaching the condition which triggers the event, the action ALARM will
show a text message in the status area of the display with an additional alarm
pop-up, and additionally emit an acoustic signal (if activated). Furthermore
the DC output is switched off. Certain device alarms are also signalled to
the analog interface or can be queried via the digital interface.
3.6.2 Device alarm and event handling
A device alarm incident will usually lead to DC output switch-off. Alarms have to be acknowledged (see below),
which can only happen if the cause of the alarm isn’t persistent anymore, but not all of them require the acknowl-
edgement BEFORE the device can continue its operation. Such alarms are OT and the PF alarm. The user can
define the condition of the DC output for these two alarms, so that the device could also automatically continue to
work like before the alarm. The alarm indication would then remain in the display until the user confirms.
► How to acknowledge an alarm in the display (during manual control)
1.
If the alarm is indicated as a pop-up, tap OK.
2.
If the alarm has already been acknowledged, but is still displayed in the status area,
then first tap the status area to display the pop-up again, then acknowledge with
OK.
In order to acknowledge an alarm during analog remote control, see
„3.5.4.5. Overview of the D-Sub15 socket“
.
To acknowledge in digital remote, refer to the external documentation “Programming ModBus & SCPI”.
These device alarms are configurable:
Alarm Meaning Description Range Indication
OVP
O ver V oltage
P rotection
Triggers an alarm if the DC output voltage reaches the
defined threshold. The DC output will be switched off.
0 V...1.1*U
Nom
Display, analog
IF, digital IF
OCP
O ver C urrent
P rotection
Triggers an alarm if the DC output current reaches the
defined threshold. The DC output will be switched off.
0 A...1.1*I
Nom
Display, digital
IF
OPP
O ver P ower
P rotection
Triggers an alarm if the DC output power reaches the
defined threshold. The DC output will be switched off.
0 W...1.1*P
Nom
Display, digital
IF