MA-AL-T272-01-01 Manual TUL272 eng rev1
Rev.1 Page 3 of 4
ALTERNING POWER SUPPLY TERMINALS
L
line connection ( 230 Vac)
land protection connection
N
neutral connection
Check and adjustments
P1 e P2 check are calibrated from factory and
must not be modified by operators
. Tampering of
these checks will cause guarantee loss.
FRONT PANEL SIGNALS
- Low Battery
:
-
check tension lower than 22 Vdc
- Battery OK:
- tension between 22 Vdc and 29 Vdc
- Overloaded Battery:
- tension higher than 29 Vdc
- Power Supply:
- line tension 230 Vac
- Failure:
- General failure pilot lamp: light up in case of:
Low battery
– Overloaded battery – Tension absence 230 Vac –
Fuse failure
– Battery charge loss
Control circuit connection (placed behind frontal panel)
See Pict. 2
“Tension absence” Relay – Terminals 10 – 11 – 12 (working with SELV tension)
Output relay for tension absence with programmable delays of activation:
Jumper on
JP1
to get a 15 seconds delay
Jumper on
J1
to get a 15 minutes delay
Jumper on
J2
to get a 60 minutes delay
Jumper on
J3
to get a 120 minutes delay
Jumper on
J4
to get a 240 minutes delay
NOTE
:
Without any jumper connected, the “Tension absence “ relay will be never activated.
“Failure signaling” relays – Terminals 4 – 5 – 6 (working with SELV tension)
Output relay for failure signaling, activated in case of:
Low Battery (tension lower than 22 Vdc)
Overloaded Battery (tension higher than 29 Vdc)
MAINTENANCE
In order to avoid power supply unit malfunctions, periodic and preventive maintenance must be
executed by qualified staff. Maintenance is recommended each 6 months. During all check
operations, there is the possibility of alarms, so coordination with control central is suggested.
- Check connection status of power supply line 230 Vac.
- Check connection status of alarm lines and relative screening.
- Check connections to battery. They must be not oxidized and well fastened.
- Check output tension on load (see Electrical Specifications)
