Swegon TAC5F Manuel D'installation page 39

3.3 Alarms
8 different alarms are available:
Type 1: Alarm indicating a fan failure.
This alarm indicates a failure of fan Fx.
This problem is usually caused by the motor. If not, the failure can be caused by an internal cable or by
the TAC5 F circuit.
See 1 in table below.
Type 2: Alarm on the pressure variation (CA and LS with airflow modulation modes only).
This alarm indicates a pre-established pressure level has been reached on fan Fx.
Pressure alarm setup in CA or LS mode
See 2 in table below.
Type 3: Alarm indicating a problem while initializing reference pressure for a pressure alarm.
4 possibilities:
Actual airflow < requested airflow: The requested working point is 'too high' (too much pressure)
-
for the maximal available pressure at the requested airflow for this fan.
- Actual airflow > requested airflow: the nominal airflow requested to initialize the pressure alarm
cannot be reached because the lower limit of the fan's operating zone has been reached.
- Very unstable pressure (pumping).
- Assigned airflow not reached after 3 minutes.
Pa cannot be identified and the fans are stopped.
ref
Press the 'RESET' key on the TAC5 F circuit.
- If it occurs during initializing an alarm pressure 2 options: 1. No action is taken: the control will
operate without pressure alarm 2. Corrective action is taken (change the working point to one
well located in the working zone of the fan, by reducing the pressure system, modifying the
nominal airflow,...) and restart the setup operation.
- If it occurs during initializing of the assignment pressure in CPs mode: A corrective action must
be taken (change the working point to one well located in the working zone of the fan, by
reducing the pressure system, modifying the nominal airflow, ...) and restart the setup operation.
See 3 in table below.
Type 4: Alarm indicating the system cannot fulfill the assignment.
The assignment (keeping certain airflow or a certain pressure constant) cannot be fulfilled because the
upper or lower limit of the fan's working zone has been reached.
See 4 in table below.
Type 5: Alarm indicating a data failure in the control circuit.
Crucial data from the circuit board has been lost. Try a TOTAL RESET of the data using the advanced
setup.
If still not solved send the defect TAC5 F circuit for reprogramming.
See 5 in table below.
Type 6: A Fire Alarm with an external contact connected to a fire detection system (via an
external contact).
After a fire alarm it is necessary to perform a RESET (via the RESET button on the TAC5 F circuit to
return to normal operation).
See 6 in table below. For more details, see §3.3.3.
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