36
5
610.592A
Rev.
1
UDEVAC-500
1. AC Power indicator.
Green
AC power supply is currently operating normally.
Yellow
AC power supply has a problem.
2. DC 24V indicator.
Green
Backup power supply is working normally.
Yellow
Failure of the backup power supply.
Off C
omputer does not have a backup power supply connected.
Note:
In the rear configuration DIP switches (second switch on the SLA-500M and sixth switch on the
SLA-500S), if they are up they activate the supervision of the backup power supply, and downwards
they deactivate the supervision of the power supply backup.
3. Communication indicator between the control equipment and the expansion equipment.
Green
Connection of the devices is normal.
Yellow
That the physical connection fails or is not connected or configured.
Off
No logical or physical connection between the control equipment and the expansions
4. Fault indicator.
Yellow
System failure, press
FAULT ACK
to silence the alarm tone, although the LED will continue to flash.
Verify source of failure to restore system to normal mode.
Off
System is working properly, unless the monitoring function is disabled.
5. Emergency microphone indicator.
Green
Microphone is working
Yellow
Microphone has been disconnected or is faulty
Off
Microphone is OK, but not working.
6. Indicator test buttons.
Press this button to turn on all LED indicators to check that all indicator LEDs are working, including the SLA-
500M control unit, the SLA-500S expansion modules, and the PZ-500 and PZ-500F remote microphones.
7. Emergency button.
Red blinking
System is in emergency mode.
Off
System is in normal mode.
Front panel
1
2
3
4
5
6
18
19
7
9
10
12
13
14
15
16
17
11
8
21
23
22
20
