tau K123M Installationsanleitung Seite 17

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.
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)
6 flashes:
•
Make sure there are no obstacles across the path of the gate and that it slides smoothly;
7 flashes:
•
Execute memorization procedure.
8 flashes:
•
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,
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.
normal operation;
buffer battery voltage lower than 11.3 Vdc;
phototest error;
power failure;
max current limit exceeded;
absence of encoder signal;
presence of obstacle after 5 failed attempts to close;
no memorization procedure has been executed;
max no. of programmed manoeuvres has been exceeded (optional).
K123M CHARACTERISTICS