12
Event to remote relays (23)
The following events can be assigned to remote 1-64 relays by using ENGINEER’S menu 23.
4-20 direct chan fail
4-20 direct chan hialarm
4-20 direct chan loalarm
4-20 direct chan oralarm
CAN chan fail
CAN chan hialarm
CAN chan loalarm
CAN chan oralarm
COMM fail alarm
Main power fail
CAN bus fail
Battery / Standby fail
Pressing SELECT (3) moves to each of these event groups and using UP (1) and DOWN
(5), the channel can be chosen and the + (4) and - (2) buttons decide which relay is to be
operated. Note that it is possible to not drive any relay which is the default and this is
indicated on the LCD as relay O.
Pressing DIM (6) at this point allows relay patterns to be entered which will be output to
the external relays if this event occurs.
Pressing SELECT (3) eventually returns to the ENGINEERS menu after saving the
selections and these relays will now energise when the event occurs.
Dimming the LED’s (11)
The LED’s on the main processor board and the LCD display are normally bright but can
be dimmed to give a more acceptable level of illumination in subdued control room
conditions.
The DIM (6) button on the main panel when pressed will toggle the brightness between
maximum and dimmed for both. The level to which dimming occurs can be set via the
User Menu number 11. This shows the current brightness setting and then using the UP
(1) and DOWN (5) buttons a new dim level can be set and this is shown on the LCD and
on the LEDs themselves. This dim value is stored in none volatile memory for future use
and subsequent power ups. In addition to dimming the LED’s, the LCD backlight is also
dimmed and to enable a balance between LCD brightness and LED brightness, a pot on
the main PCB (RV2) allows LCD backlight adjustment. If a repeater is connected to the
main panel then the dim levels are also activated using the same buttons on the repeater.
Mute the buzzer
When an alarm or fault condition occurs the buzzer on the main processor board will
sound. By pressing the ACCEPT button (1) on the front panel, the buzzer will become
silent. Note: even if the key lock terminal is active to prevent button entry, the mute
function will still silence the buzzer. A jumper near the buzzer on the PCB allows the
buzzer to be isolated, this jumper should normally be fitted.
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