Bit Hex Dec Alarm Word Alarm Word 2 Warning Word Warning
Word 2
Extended
Status Word
17 00020000 131072 Internal Fault (A38) KTY error 10V Low (W1) KTY Warn Password Timelock
number of allowed
password trials
exceeded - timelock
active
18 00040000 262144 Brake Overload
(A26)
Fans error Brake Overload (W26) Fans Warn Password Protection
0-61 =
ALL_NO_ACCESS OR
BUS_NO_ACCESS OR
BUS_READONLY
19 00080000 524288 U phase Loss (A30) ECB error Brake Resistor (W25) ECB Warn Reference High
reference > 4-55
20 00100000 1048576 V phase Loss (A31) reserved Brake IGBT (W27) reserved Reference Low
reference < 4-54
21 00200000 2097152 W phase Loss (A32) reserved Speed Limit (W49) reserved Local Reference
reference site =
REMOTE -> auto on
pressed & active
22 00400000 4194304 Fieldbus Fault (A34) reserved Fieldbus Fault (W34) reserved Protection Mode
23 00800000 8388608 24 V Supply Low
(A47)
reserved 24V Supply Low (W47) reserved Unused
24 01000000 16777216 Mains Failure (A36) reserved Mains Failure (W36) reserved Unused
25 02000000 33554432 1.8V Supply Low
(A48)
reserved Current Limit (W59) reserved Unused
26 04000000 67108864 Brake Resistor (A25) reserved Low Temp (W66) reserved Unused
27 08000000 134217728 Brake IGBT (A27) reserved Voltage Limit (W64) reserved Unused
28 10000000 268435456 Option Change
(A67)
reserved Encoder loss (W90) reserved Unused
29 20000000 536870912 Drive
Initialized(A80)
Feedback Fault
(A61, A90)
Feedback Fault (W61,
W90)
Unused
30 40000000 1073741824 Safe Stop (A68) PTC 1 Safe Stop
(A71)
Safe Stop (W68) PTC 1 Safe
Stop (W71)
Unused
31 80000000 2147483648 Mech. brake low
(A63)
Dangerous Failure
(A72)
Extended Status Word Unused
Table 7.3 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 16-94 Ext. Status Word.
WARNING 1, 10 Volts low
The control card voltage is below 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Max. 15 mA or minimum 590 Ω.
This condition can be caused by a short in a connected
potentiometer or improper wiring of the potentiometer.
Troubleshooting
Remove the wiring from terminal 50. If the warning clears,
the problem is with the customer wiring. If the warning
does not clear, replace the control card.
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed by the
user in 6-01 Live Zero Timeout Function. The signal on one
of the analog inputs is less than 50% of the minimum
value programmed for that input. Broken wiring or faulty
device sending the signal can cause this condition.
Troubleshooting
Check connections on all the analog input
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common. MCB 101 terminals
11 and 12 for signals, terminal 10 common. MCB
109 terminals 1, 3, 5 for signals, terminals 2, 4, 6
common).
Check that the frequency converter programming
and switch settings match the analog signal type.
Perform Input Terminal Signal Test.
WARNING/ALARM 3, No motor
No motor has been connected to the output of the
frequency converter.
Troubleshooting
Operating Instructions VLT
®
CDS302 and CDS303
146 MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
77
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