ENMET MX-52 - Manual (Page 37)

MX52 C ONTROL ENMET Corporation
33
Continued from previous page
An LED does not light up even
though the corresponding threshold
is exceeded and the buzzer and relay
are actuated.
Faulty LED. Perform a general test on the LEDs
by pressing the TEST switch on
the keypad (Figure 10) and, if the
LED still does not light up, the
programming must be modified by
using the “Unit programming”
menu (buzzer connected).
An alarm is triggered, the LED lights
up and the relay is actuated but there
is no audio alarm.
The buzzer switch is not correctly
positioned.
Position the buzzer switch correctly
(item F, Figure 10).
The buzzer is not programmed as “in
service”.
If the audio alarm is wanted, the
programming must be modified by
using the “unit programming” menu
(buzzer connected?).
The audio alarm stops after 30 s
although alarms are still actuated.
The buzzer is programmed to operate
for 30 seconds only.
If the buzzer is to be sounded as
long as the alarms are actuated, the
programming must be modified by
using the “Unit programming
menu” (continuous buzzer?).
An alarm is triggered but the
auxiliary devices are not actuated.
The relays are faulty. Short-circuit or open the relay
contact (as applicable) on the MX52
terminal block (Figure 12) and, if
the auxiliary devices operate
normally, the corresponding
channel board must be repaired by
an approved technician.
Faulty electrical connections. Short-circuit or open the relay
contact (as applicable) on the MX52
terminal block (Figure 12) and, if
the auxiliary devices still do not
work, the connections must be
checked on the MX52 connector
and on the auxiliary devices.
Remote acknowledgement is
impossible.
Faulty electric connections. Check the connections on the MX52
connector (item B, Figure 9) and on
the pushbutton switch.
The pushbutton switch is faulty. Replace the pushbutton switch.