Fault Displays; Lc Display - Baer DLX User Manual

13

Fault Displays

Should the DLX notice an internal fault, then these are stored as alarm
messages and shown on the display. Two fault classes and one information
class are differentiated:
Warnings (operational faults / alarm 1) are non critical faults that can be
removed on site and cleared manually using the main menu item „Main
menu – Erase alarms". Warnings are indicated by a blinking LED "AL1" on
the front panel. Exceptions to this rule are the warnings:
• 03/01 – power failure
• 03/02 – power dip
• 06/xx – Data memory: data erased
• 8E/xx – Energy register overflow
where the LED "AL1" will be automatically cleared after the end of the reg-
istration period (Tm1/MP1).
•
Device faults (hardware faults / alarm 2) are critical faults that can only be
removed by the manufacturer. This requires opening of the certification seal
and afterwards the device needs to be re-certified, if relevant regulations
exist. These error messages can only be cleared when programming of the
unit is enabled. Device faults are indicated by a blinking LED „AL2" on the
front panel.
•
Information messages are used to indicate changes of conditions to the
user that happen during normal operation. These are not alarms. The in-
formation message will be stored as a spontaneous event, but does not
cause a fault display. The light emitting diodes „AL1" and „AL2" are not in-
fluenced.
Note: All warnings and device faults are stored in device status for each complet-
ed registration period (see appendix A, SCTM Protocol). Warnings 03/02
(power dip) don't stored in the device status (from version 1.04.03 up).
13.1

LC display

Use the menu item Main menu item "Show Alarms" (see page 60) to dis-
play all warnings and device faults that have occurred. The DLX uses line 3
and 4 to display relevant information.
Figure 49, Main menu item "Display alarms"
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