Danfoss VLT Active Front End AFE 302 Operating Instructions Manual page 69

How to Programme
Alarm Word Extended Status Word
Bit Hex Dec Alarm Word
31 80000000 2147483648
Table 6.8 Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status words can be read out via serial bus or optional fieldbus for diagnose.
See also parameter 16-94 Ext. Status Word.
WARNING 1, 10 Volts low
The 10 V voltage from terminal 50 on the control card is
below 10 V.
Remove some of the load from terminal 50, as the 10V
supply is overloaded. Max. 15 mA or minimum 590 Ω.
WARNING 5, DC-link voltage high
The DC bus voltage is higher than the overvoltage limit of
the control system. The AFE is still active.
WARNING 6, DC link voltage low
The DC bus voltage is below the undervoltage limit of the
control system. The AFE is still active.
WARNING/ALARM 7, DC over voltage
If the DC bus voltage exceeds the limit, the AFE trips after
a time.
Undervoltage
Voltage warning low
Voltage warning high
Overvoltage
The voltages stated are the DC bus voltage of the AFE with a
tolerance of ± 5%.
Table 6.9 Alarm/Warning Limits
WARNING/ALARM 8, DC under voltage
If the DC bus voltage drops below the "voltage warning
low" limit (see Table 6.9), the frequency converter checks if
24 V backup supply is connected.
If no 24 V backup supply is connected, the frequency
converter trips after a given time (depending on the unit).
To check whether the supply voltage matches the AFE, see
chapter 5.1 General Specifications.
WARNING/ALARM 9, Inverter overloaded
The AFE is about to cut out because of an overload (too
high current for too long). The counter for electronic,
thermal protection gives a warning at 98% and trips at
100%, while giving an alarm. The AFE cannot be until the
counter is below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
WARNING/ALARM 13, Over Current
The peak current limit (approx. 200% of the rated current)
is exceeded. The warning will last approx. 8-12 s, then the
AFE trips and issues an alarm.
MG33X402
Operating Instructions
Alarm Word 2 Warning Word
Extended Status Word
ALARM 14, Earth fault
There is a discharge from the output phases to earth. Turn
off the AFE and remove the earth fault.
ALARM 15, Incomplete hardware
A fitted option is not handled by the present control board
(hardware or software).
ALARM 16, Short-circuit
There is short-circuiting in the outout phases.
Turn off the AFE and remove the short-circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the AFE.
The warning will only be active when 8-04 Control Word
Timeout Function is NOT set to OFF.
Parameter 8-03 Control Word Timeout Time could possibly
be increased.
3 x 525-690 V
WARNING/ALARM 21, Parameter error
[V DC]
The parameter is out of range. The parameter number is
553
reported in LCP. The affected parameter must be set to a
585
valid value.
1084
WARNING 23, Internal fan fault
1130
The fan warning function is an extra protection function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor (set to [0] Disabled).
WARNING 24, External fan fault
The fan warning function is an extra protection function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor (set to [0] Disabled).
ALARM 29, Heat sink temperature
The temperature of the AFE heat sink has exeeded the
limit.
P400; 110 °C
P800/PIM2: 95 °C
The temperature fault is cannot be reset untill the
temperature of the heat sink has dropped th a safe level.
P400: 95 °C
P800/PIM2: 80 °C
ALARM 33, Inrush fault
Too many power ups have occured within a short time
period. See the chapter General Specifications for the
allowed number of power ups within one minute.
WARNING/ALARM 34, Fieldbus communication fault
The fieldbus on the communication option card is not
working correctly. Please check parameters associated with
the module and make sure module is properly inserted in
Danfoss A/S © Rev. 05/2014 All rights reserved.
Warning Extended
Word 2 Status Word
6 6
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