Oldham MX 43, User Manual

Page: 23 / 67

4 – The MX43 Central Unit 23
(relay, indicator, buzzer) is carried out per the following table:
Event Message
screen Alarm relay
(normal) Alarm relay
(buzzer)
Alarm relay
(normal) LED alarm Internal
buzzer
Appearance AL(1,2,3)
and inverse
video of
detector
Activated Activated Blinking light Activated
Release
activated AL(1,2,3)
and inverse
video of the
detector Activated in
the presence
of an event
Deactivated Fixed light if
an event is
present Deactivated
AL(1,2,3)
and inverse
video of the
detector
Deactivated
if the event
disappears Deactivated Off if an
event
disapears
Disappearan
ce Normal
display Deactivated
(1) Deactivated Off (1) Deactivated
(1)
(1): compulsory after manual release.
Table 3: Manual alarm deletion.
Internal relays and buzzers
The operating mode of relays and optional visual and sound alarms (Figure 9,
F and G) is configured over the COM43 application.
■ Relays: 5 alarm relays (R1 to R5) are common to all the lines.
■ The internal buzzer is common to all the alarms of all the lines: it is
activated on the appearance of an event (failure or alarm). The common
failure relay is active in parallel. The sound frequency of the internal buzzer
differs in accordance with the alarm threshold. High alarm thresholds have
a faster sound frequency, thus making it possible to distinguish the alarm
level. The internal buzzer can be deactivated by the internal programming
menu or the COM43 application.
Note: The failure relay cannot be programmed via the COM43 application, but
is activated on the occurence of a failure.
Name Plate
The name plate is attached on the right side of the MX43. It contains the
following information:
■ Function and type of equipment.
■ Precautions of use.
■ Alternative voltage supply, frequency, rating of protective fuse, nominal
power.
■ Continuous voltage supply, frequency, rating of protective fuse, nominal
power.
■ Symbol of destruction and danger.
■ Product reference and serial number, manufacturer logo.
■ Version: 4 or 8 lines.