17
TAU
Srl
K122M
TL
TCA
FR
-
+
-
+
-
+
ON
1
2
3
4
5
6
7
8
9
10
CN1
TL
TCA
FR
-
+
-
+
-
+
ON
1234
5
6
789
10
Dip-switches
off:
function disconnected;
8 on:
the memorization function is enabled for self-learning of the travel;
off:
leave the dip-switch in this position when the memorization procedure has been
completed.
Clock function:
A timer can be connected to the open-close pushbutton in order to keep the gate open at certain
times during the day, after which it reverts to automatic closing.
K122M CHARACTERISTICS
LED - DL3
The LED, besides indicating that the power supply is connected, also signals errors with a series of
pre-defi ned fl ashes:
• steady light:
normal operation;
• 1 fl ash:
buffer battery voltage lower than 11.3 Vdc;
Check the mains power supply, charge the battery, replace the battery;
• 2 fl ashes:
phototest error;
Disable phototest (dip-switch 6 OFF), check operation and connection of photocells;
• 3 fl ashes:
power failure;
Check the thermal-magnetic circuit breaker (upstream from system), check the fuses;
• 4 fl ashes:
max current limit exceeded;
Gearmotor has exceeded absorption limits, check for obstacles across the path of the gate,
check the current absorption of the motor when loadless and under load;
• 5 fl ashes:
absence of encoder signal;
Check wiring, check encoder through TEST-ENCODER (optional)
• 6 fl ashes:
presence of obstacle after 5 failed attempts to close;
Make sure there are no obstacles across the path of the gate and that it slides smoothly;
• 7 fl ashes:
no memorization procedure has been executed;
Execute memorization procedure.
• 8 fl ashes:
max no. of programmed manoeuvres has been exceeded (optional).
Reset manoeuvre counter
N.B.: The microprocessor version installed in your control panel is not enabled for manoeuvre
counting.
Multiple errors are signalled by a 2-second pause between signals. Errors will continue to be signalled
until a complete opening and closing manoeuvre is executed.
If the safety devices are activated 5 consecutive times during the same opening or closing manoeuvre,
