Owner's manual

Chapter 6 –Troubleshooting and Fault Information
6-8
Table 6.B Bulletin 1305 Fault Descriptions (cont.)
Fault Name & Number Fault Description Action to Take
Undervolt Fault DC Bus voltage fell below the minimum value. [Line Loss
al pr eerspr r ed u
Monitor the incoming AC line for low voltage or line power
errup
U
nder
v
ol
t F
a
u
l
t
F4
DC B
us
v
oltag
e
f
e
ll b
e
low th
e
minim
u
m
v
al
ue
. [
L
i
ne
Lo
ss
Fault] parameter is programmed to “U Volt Run”.
M
onito
r
th
e
incoming AC lin
e
fo
r
low
v
oltag
e
o
r
lin
e
p
ow
er
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.