tau K123M Notice D'installation page 18

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 com-
pleted.
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.
LED - DL3
The LED, besides indicating that the power supply is connected, also signals errors with a series
of pre-defined flashes:
• steady light:
• 1 flash:
Check the mains power supply, charge the battery, replace the battery;
• 2 flashes:
Disable phototest (dip-switch 6 OFF), check operation and connection of photocells;
• 3 flashes:
Check the thermal-magnetic circuit breaker (upstream from system), check the fuses;
• 4 flashes:
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 flashes:
Check wiring, check encoder through TEST-ENCODER (optional);
Check wiring, check that the motor rotates freely when powered directly by battery, check
fuse F2;
• 6 flashes:
Make sure there are no obstacles across the path of the gate and that it slides smoothly;
• 7 flashes:
Execute memorization procedure.
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 ma-
noeuvre, the control unit will switch to slow-down mode as it searches for the closing travel limit.
To reset, the gate must execute a complete opening and closing cycle, otherwise the travel limit
search phase will start again each time the safety devices are activated.
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normal operation;
buffer battery voltage lower than 11.3 Vdc;
phototest error;
power failure;
max current limit exceeded;
absence of encoder signal / no motor signal;
presence of obstacle after 5 failed attempts to close;
no memorization procedure has been executed;
K123M CHARACTERISTICS
K123M