Descriptions Of Warnings And Alarms - Danfoss VLT AutomationDrive EZ FC 321 Programming Manual

VLT® AutomationDrive EZ FC 321
Programming Guide
Bit Hex Dec
18 00040000 262144
19 00080000 524288
20 00100000 1048576
21 00200000 2097152
22 00400000 4194304
23 00800000 8388608
24 01000000 16777216
25 02000000 33554432
26 04000000 67108864
27 08000000 134217728
28 10000000 268435456
29 20000000 536870912
30 40000000 1073741824
31 80000000 2147483648
The alarm words, warning words and extended status words can be read out via a serial bus or optional fieldbus for diagnostics. See
also parameter 16-94 Ext. Status Word.

5.2 Descriptions of Warnings and Alarms

Depending on settings, FC 301/302 is able to give warnings or trigger alarms. In the Programming Guide for VLT® AutomationDrive
FC 301/302, a full list of all warnings and alarms can be found. Below, an extract of most common alarms and warnings can be
found.
Danfoss A/S © 2021.08
Alarm word Alarm word
2
Brake overload Fans error
(A26)
U phase loss ECB error
(A30)
V phase loss Hoist me-
(A31) chanical
brake (A22)
W phase loss Reserved
(A32)
Fieldbus fault Reserved
(A34)
24 V supply Reserved
low (A47)
Mains failure Reserved
(A36)
1.8 V supply Current limit
low (A48) (A59)
Brake resistor Motor rotat-
(A25) ing unex-
pectedly
(A122)
Brake IGBT Reserved
(A27)
Option change Reserved
(A67)
Drive initial- Encoder loss
ized (A80) (A90)
Safe stop (A68) PTC thermis-
tor (A74)
Mech. brake Dangerous
low (A63 failure (A72)
Warning word Warning
word 2
Brake overload Fans warn
(W26)
Brake resistor ECB warn
(W25)
Brake IGBT Hoist me-
(W27) chanical
brake (W22)
Speed limit Reserved
(W49)
Fieldbus fault Reserved
(W34)
24 V supply Reserved
low (W47)
Mains failure Reserved
(W36)
Current limit Power Limit
(W59) Motor
Low temp Power Limit
(W66) Generator
Voltage limit Reserved
(W64)
Encoder loss Reserved
(W90)
Output freq. BackEMF
lim. (W62) too high
Safe stop PTC ther-
(W68) mistor
(W74)
Extended sta-
tus word
AU373327181955en-000101 / 130R1208 | 355
Troubleshooting
Extended status word
Password protection
0-61 = ALL_NO_ACCESS OR
BUS_NO_ACCESS OR
BUS_READONLY
Reference high
reference >parameter 4-55
Warning Reference High
Reference low
reference <parameter 4-54
Warning Reference Low
Local reference
reference site = REMOTE ->
auto on pressed & active
Protection mode notification
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Protection mode