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8.0 Troubleshooting
The TAC control board generates and reports 22 types of alarms.
The alarms are subdivided into auto resetting and non-auto resetting alarms. For the latter, a reset will be
necessary once the problem has been resolved.
For each type of alarm, a full text description will be displayed on the user interface depending on the alarm type, together with
a symbol indicating its level:
highest level 3: severe alarm
level 2: warning
information symbol for level 1 and 0: information. Lowest 0 level alarms may be hidden thanks to the parameter «Hide
low level alarms» in Settings/TACtouch setup
-
Activation of alarm output (see point 4.1, figure 2)
-
Activation of pressure alarm output in case of pressure alarm (see point 4.1, figure 3).
-
"Alarm" activated LED's on control board
-
Alarm on user interface
-
Alarm communication with networking modules provided that an optional communication module
(Modbus RTU, MODBUS TCP/IP, and KNX) is installed on the TAC control board.
8.1 TYPE 1: ALARM INDICATING A FAN FAILURE
- Conditions:
- Causes:
• Failure of fan Fx. This problem is usually caused by the fan motor.
If not, the failure may be caused by an internal cable (control or power) or by the TAC circuit.
- Effects:
Code
B.11
B.12
B.13
B.14
ALARM OUTPUT
Alarm Status
Operation and maintenance instructions
Displayed on HMI TACtouch
Text displayed
Fan 1 failure
Fan 2 failure
Fan 3 failure
Fan 4 failure
TAC control board
AL dPa OUTPUT
/
Auto reset: no
LED ALARM
ON
Level
3
3
3
3
Fans
stopped
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