Allen-Bradley 2-D Uživatelský manuál Strana 133

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Troubleshooting and Fault Information
6-8
Table 6.B 1305 Fault Descriptions (continued)
Fault Name & Number Fault Description Action to Take
Undervolt Fault
F4
DC Bus voltage fell below the minimum value. [Line Loss
at]arame er i r ramme ”.
Monitor the incoming AC line for low voltage or line power
i err i .
Und
er
vol
t
F
a
ul
t
F4
DC Bus volt
a
g
e
f
e
ll b
e
lo
w
th
e
mi
n
im
u
m
v
a
lu
e.
[
Lin
e
Loss
Fault] parameter is programmed to “U Volt Run”.
M
on
i
to
r
th
e
i
nco
mi
ng AC l
i
n
e
fo
r
lo
w
volt
a
g
e
o
r
l
i
n
e
po
wer
interruption.
UV Short Fault
F41
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
UW Short Fault
F42
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
VW Short Fault
F43
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
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