Daikin ACS320 - Fault Tracing; Safety; Alarm and Fault Indications; How to Reset

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What This Chapter Contains
The chapter tells how to reset faults and view fault history. It also lists all alarm and fault messages including the
possible cause and corrective actions.
Safety
WARNING
Only qualied electricians are allowed to maintain the drive.
Read the safety instructions in chapter Safety on page 4
before you work on the drive.
Alarm and Fault Indications
Fault is indicated with a red LED. See section LEDs on page
101.
An alarm or fault message on the panel display indicates
abnormal drive status. Using the information given in this
chapter most alarm and fault causes can be identied and
corrected. If not, contact an Daikin representative.
The four digit code number in parenthesis after the fault is for
the eldbus communication. (See chapter Fieldbus control with
embedded eldbus on page 90.)
How to Reset
The drive can be reset either by pressing the keypad key
(Basic Control Panel) or (Assistant Control Panel), through
digital input or eldbus, or by switching the supply voltage off
for a while. The source for the fault reset signal is selected by
parameter 1604 FAULT RESET SEL. When the fault has been
removed, the motor can be restarted.
Fault History
When a fault is detected, it is stored in the Fault History. The
latest faults are stored together with the time stamp.
Parameters 0401 LAST FAULT, 0412 PREVIOUS FAULT 1
and 0413 PREVIOUS FAULT 2 store the most recent faults.
Parameters 0404…0409 show drive operation data at the time
the latest fault occurred. The Assistant Control Panel provides
additional information about the fault history.
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