Nice UST1-FU Instructions D'installation Et D'utilisation page 25

Error/ Description
status
OC1 Short c ircuit o r o verload
OC2 Earth c ontact
OC6 Motor o verload
OH Regulator o vertemperature
OU
Overvoltage i n t he i ntermediate
circuit d uring t he p rocess
(warning)
5F Single-­‐phase e rror
Operation curves with parameter setting assigned
Cause
Short c ircuit
Capacitive c harging c urrent o f
the m otor l ine t oo h igh
Time f or g oing i nto f ull s peed ( C12, c 01) t oo
short
Motor l ine d amaged
Fault i nside t he m otor
Overload f requent a nd l engthy
Motor p hase w ith e arth c ontact
Capacitive c harging c urrent o f
the m otor l ine t oo h igh
Thermal m otor o verload d ue t o: u nreliable
continuous c urrent, f requent o r t oo l engthy
acceleration p rocesses
Space i nside t he r egulator t oo h ot
Mains v oltage t oo h igh
Process t ime v ery s hort o r m otor i n
generator m ode
Earth c ontact m otor s ide
Loss o f t he m ains p hase
OPERATION CURVES
(UST1FU)
Poti2
(FU)
C 1 2
(UST1FU)
Poti3
(FU)
C 1 2
(X5)
P8
(FU)
(UST1FU)
C 1 3
Poti1
(X5)
P9
(FU)
(UST1FU)
C 1 3
Poti1
Remedy
Look f or t he c ause o f t he s hort c ircuit,
check t he l ine
Use a s horter m otor l ine w ith l ower
charging c urrent
Increase t he t ime f or g oing i nto f ull
speed
Check t he s izing o f t he r egulator
Check t he m otor l ine
Check t he m otor
Check t he s izing o f t he r egulator
Check t he m otor/motor l ine
Use a s horter m otor l ine w ith l ower
charging c urrent
Check t he s ize o f t he r egulator
Check t he s etting o f c 20
Reduce t he l oad o f t he r egulator
Improve c ooling
Check t he m ains v oltage
Increase t he p rocess t ime o r u se t he
option f or d ynamic b raking
Check t he m otor/motor l ine ( Separate
the m otor f rom t he r egulator )
Check t he m ains v oltage
English – 9