![Siemens SINAMICS V50 Operating Instructions Manual Download Page 71](http://html.mh-extra.com/html/siemens/sinamics-v50/sinamics-v50_operating-instructions-manual_385614071.webp)
Fault information and trouble shooting
70
SINAMICS V50 converter
Operating Instructions, 04/2022, FW V1.0, A5E44777205B AB
Trip
code
Trip Type
Possible causes
Solutions
Uu1
Bus Under voltage
during running
1. Power grid low
voltage
1. Check the input power
source.
OC1
Over current in
Acceleration
1. Acceleration time
too short
2. Power grid low
voltage
3. Drive power rating
too small
1. Increase the acceleration
time.
2. Check the input power
source.
3. Choose drive with higher
capacity.
OC2
Over current in
Deceleration
1. Deceleration time
too short
2. Large load inertia
3. Drive power rating
too small
1. Increase the deceleration
time.
2. Add suitable brake
devices.
3. Choose higher capacity
drive
OC3
Over current at
constant-speed
1. Abnormal load
mutation
2. Power grid low
voltage
3. Drive power rating
too small
4. Encoder sudden
offline in closed-loop
vector control
1. Check the load
2. Check the input power
source.
3. Choose higher capacity
drive
4. Check the encoder and its
wiring.
Ou1
Over Voltage in
Acceleration
1.Acceleration time too
short
2.Power supply
abnormal
1. Increase the acceleration
time
2. Check the input power
source.
Ou2
Over voltage in
deceleration
1.Deceleration time
too short
2.Large load inertia
1. Increase the deceleration
time
2. Add suitable brake
devices.
Ou3
Over voltage in
constant speed
1. Power supply
abnormal
2. Large load inertia
1. Check the input power
source.
2. Add suitable braking
devices.
Summary of Contents for SINAMICS V50
Page 1: ...SIEMENS ...