20
POLITEC | INSTALLATION MANUAL - VER.3.1
MANA DT SMA
N.B.: in case of absence of 230Vac power supply, the back-up battery inside the column is
disconnected to avoid its deterioration, when its voltage drops below 10.6V.
1
MW TX or RX circuit
power supply connector
Connection with flat cable to the connector of the MW TX or MW RX
electronic board
2
Battery connector
Connect with red black two-wire cable to the backup battery
3
V-Test jumper
If inserted in position 1-2 it enables the power LEDs to light up, 5V /
9V / 13.8V.Return to the rest position 2-3 after the test.
The 4th LED, called "Mains" is always on when the board is powered
by the transformer, while it is off if the battery intervenes.
4
Jumper 0.5 A battery
Insert the jumper when using batteries of 7 Ah or greater.
N.B.Current limit for battery charging 0.5 A. Without jumper the
current charging limit is 0.25 A
5
Heater fuse
5 A delayed to protect the heating circuits.
6
Circuit fuse
0.8 A delayed to protect the MW TX or RX and IR circuits.
7
Jumper J7
If inserted, the 24Vac output of the power supply is forced to test the
heaters regardless of the temperature detected in the column.
No.
ID
CODE
DESCRIPTION
Terminal
board of 6
1
GND
Power supply negative.
2
T
Battery test.By applying a 12V pulse it is possible to verify that the
battery has an output voltage > 11.4Vdc.
This information is given on terminal "B".
3
B
High impedance output if the voltage supplied by the battery is <
11.4Vdc.120
Ω
output if the battery voltage is > 11.4Vdc.
This information is valid if "T" is active.
4
15
High impedance output if the voltage supplied by the power supply is
<12.4Vdc.
120
Ω
output if the voltage supplied by the power supply is > 12.4Vdc.
5
24
High impedance output if the voltage supplied by the transformer on
the "24Vin" terminals is <18Vac.
120
Ω
output if the voltage supplied by the transformer on the "24Vin"
terminals is > 18Vac.
6
NC
Not connected
