Danfoss VLT FC Series, Service Manual

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Alarm word and extended status word
Bit
Hex Dec Alarm word Warning word Extended status word
0 00000001 1 Brake check Brake check Ramping
1 00000002 2 Pwr. card temp Pwr. card temp AMA running
2 00000004 4 Ground fault Ground fault Start CW/CCW
3 00000008 8 Ctrl. card temp Ctrl. card temp Slow down
4 00000010 16 Ctrl. word TO Ctrl. word TO Catch up
5 00000020 32 Overcurrent Overcurrent Feedback high
6 00000040 64 Torque limit Torque limit Feedback low
7 00000080 128 Motor Th over Motor Th over Output current high
8 00000100 256 Motor ETR over Motor ETR over Output current low
9 00000200 512 Inverter overld. Inverter overld. Output freq high
10 00000400 1024 DC under volt DC under volt Output freq low
11 00000800 2048 DC over volt DC over volt Brake check ok
12 00001000 4096 Short circuit DC voltage low Braking max
13 00002000 8192 Inrush fault DC voltage high Braking
14 00004000 16384 Mains ph. loss Mains ph. loss Out of speed range
15 00008000 32768 AMA not OK No motor OVC active
16 00010000 65536 Live zero error Live zero error –
17 00020000 131072 Internal fault 10 V low –
18 00040000 262144 Brake overload Brake overload –
19 00080000 524288 U phase loss Brake resistor –
20 00100000 1048576 V phase loss Brake IGBT –
21 00200000 2097152 W phase loss Speed limit –
22 00400000 4194304 Fieldbus fault Fieldbus fault –
23 00800000 8388608 24 V supply low 24 V supply low –
24 01000000 16777216 Mains failure Mains failure –
25 02000000 33554432 1.8 V Supply low Current limit –
26 04000000 67108864 Brake resistor Low temp –
27 08000000 134217728 Brake IGBT Voltage limit –
28 10000000 268435456 Option change Unused –
29 20000000 536870912 Drive initialized Unused –
30 40000000 1073741824 Safe Torque Off Unused –
Table 6.4 Description of Alarm Word, Warning Word, and Extended Status Word
The alarm words, warning words, and extended status words can be read via fieldbus or optional fieldbus for diagnosis.
Also, refer to
parameter 16-90 Alarm Word , parameter 16-92 Warning Word , and parameter 16-94 Ext. Status Word .
Bit Hex Dec Alarm word 2 Warning word 2
0 00000001 1 – Start Delayed
1 00000002 2 – Stop Delayed
9 00000200 512 Discharge Temperature High Discharge Temperature High
10 00000400 1024 Start Limit –
11 00000800 2048 Speed Limit –
Table 6.5 Description of Alarm Word 2 and Warning Word 2
Troubleshooting Service Guide
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