Handleiding
Je bekijkt pagina 41 van 78
D-EOMAC01905-23_01EN- 41/78
5 ALARMS AND TROUBLESHOOTING
The UC protects the unit and the components from operating in abnormal conditions. Protections can be divided in
preventions and alarms. Alarms can then be divided in pump-down and rapid stop alarms. Pump-down alarms are activated
when the system or sub-system can perform a normal shutdown despite the abnormal running conditions. Rapid stop
alarms are activated when the abnormal running conditions require an immediate stop of the whole system or sub-system
to prevent potential damages.
The UC displays the active alarms in a dedicated page and keep an history of the last 50 entries divided between alarms
and acknowledges occurred. Time and date for each alarm event and of each alarm acknowledge are stored.
The UC also stores alarm snapshot of each alarm occurred. Each item contains a snapshot of the running conditions right
before the alarm has occurred. Different sets of snapshots are programmed corresponding to unit alarms and circuit alarms
holding different information to help the failure diagnosis.
In the following sections it will also be indicated how each alarm can be cleared between local HMI, Network (by any of the
high-level interfaces Modbus, Bacnet or Lon) or if the specific alarm will clear automatically. The following symbols are
used:
Allowed
Not allowed
Not foreseen
5.1 Unit Alerts
5.1.1 Bad Current Limit Input
This alarm is generated when the Flexible Current Limit option has been enabled and the input to the controller is out of
the admitted range.
Symptom
Cause
Solution
Unit status is Run.
Bell icon is moving on controller’s
display.
Flexible Current Limit function cannot
be used.
String in the alarm list:
BadCurrentLimitInput
String in the alarm log:
± BadCurrentLimitInput
String in the alarm snapshot
BadCurrentLimitInput
Flexible current limit input out of
range.
For this warning out of range is a
signal less than 3mA or more than
21mA.
Check for values of input signal to the
unit controller. It has to be in the
allowed mA range.
Check for electrical shielding of
wirings.
Check for right value of the unit’s
controller output in case input signal is
into allowed range.
Reset
Notes
Local HMI
Network
Auto
Automatically clears when the signal
returns in the allowed range.
5.1.2 Option1BoardCommFail – Optional board 1 communication fail
This alarm is generated in case of communication problems with the AC module.
Symptom
Cause
Solution
Unit status is Off.
All circuits are stopped immediately.
Bell icon is moving on controller’s
display.
String in the alarm list:
Option1BoardCommFail
String in the alarm log:
± Option1BoardCommFail
String in the alarm snapshot
Option1BoardCommFail
Module has no power supply
Check the power supply from the
connector on the side of the module.
Check if LEDs are both green.
Check if the connector on the side is
tightly inserted in the module
Led Off
Check if power supply is ok but LEDs
are both off. In this case replace the
module
BUS or BSP Led are red
Check if module’s address is correct
referring to the wiring diagram.
If BSP LED is solid red replace the
module.
BSP error.
Reset
Local HMI
Network
Auto
5.1.3 Bad Leaving Water Temperature Reset Input
This alarm is generated when the Setpoint Reset option has been enabled and the input to the controller is out of the
admitted range.
Bekijk gratis de handleiding van Daikin EWAH670TZXRB2, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWAH670TZXRB2 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11657 MB |
