6RL SERIES OPERATION MANUAL
SECTION 6: FRONT PANEL OPERATION
Entire Contents Copyright
2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 87 of 204
6.6
Alarms and Monitoring
6.6.1
Definition of Terms
There is a clear distinction between unit alarms (section 6.6, “Alarms and Monitoring”, page
87) such as overvoltage protection or overheating protection, and user defined events such
as OVD (overvoltage detection). Whereas unit alarms serve to protect the unit by initially
switching off the DC Input, user defined events can switch off the DC Input (Action =
ALARM), but can also simply give an audible signal to make the user aware. Available action
settings are shown in the table below.
Action
Impact
Example
NONE
User defined event is disabled
SIGNAL
On reaching the condition that triggers the event, the
action SIGNAL will show a text message in the status
area of the display.
WARNING
On reaching the condition that 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 Input is switched off. Certain unit
alarms are available on the analog interface or can be
queried via the digital interface.
Table 6-4: Alarm Signals
6.6.2
Unit Alarm and Event Handling
A unit alarm incident will usually lead to the DC Input being switched off and the appearance
of a pop-up in the middle of the display. Also, if activated, an audible signal is generated to
make the user aware of the alarm condition. An alarm must always be acknowledged before
the output can be re-enabled.
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, and then acknowledge with OK.
In order to acknowledge an alarm during analog remote control, see section 6.6.2, “Unit
Alarm and Event Handling” on page 87. To acknowledge in digital remote operation mode,
refer to the programming sections 7.9, 7.10 “ModBus” and 7.12 SCPI”.
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