Daikin UATYA-B, Operation Manual

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Service manual Daikin R32 Rooftops UATYA-B
ESIE21-02 – 2021.03
4.2.8 Power supply alarm
The controller is designed to control either the phase sequence or min. and max. power voltage monitoring through a digital
input. The type of monitoring process is selected at the factory and it is set in parameter “CF17” (0 = phase sequence or
min./max. voltage; 1 = min./max. Voltage or blackout).
Phase sequence or min./max. voltage alarm
Alarm code AL55
Reason for activation When the corresponding digital input is open.
Reset Cut off and restore power to the controller.
Reset mode Always automatic
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
All devices Operation is inhibited.
Min./Max. voltage alarm - Blackout
Alarm code AL201
Reason for activation When the corresponding digital input is open.
Reset Upon closing of the digital input, after the delay set in parameter “CO30”
Reset mode Always automatic
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
All devices All outputs are disabled.
Fast Restart alarms
Alarm code AL191 Max. number of fast starts in 1 hour achieved
Reason for activation As soon as the number of start-ups set in parameter “PAL33” is achieved.
Reset One hour after alarm “AL201” causing the activation has tripped.
Reset mode Automatic only
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
All devices All outputs are disabled.
Alarm code AL192 Max. number of fast starts in twenty-four hours achieved
Reason for activation As soon as the number of start-ups set in parameter “PAL33” is achieved.
Reset One hour after alarm “AL201” causing the activation has tripped.
Reset mode Automatic only
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
All devices All outputs are disabled.
4 Alarms