Siemens SIMOCODE pro C System Manual page 300

Commissioning, service, troubleshooting
13.4 Troubleshooting
Event Description
(alphabetical)
Dry-running An error was detected in the
protection – measured value acquisition of
error the active power of the pump
motor or the teach-in process
was interrupted with a timeout.
The pump motor was switched
off.
Possible causes:
Timeout during teach-in
•
process
Unbalance in voltage or
•
current of at least 30%
Fault in current/voltage
•
measuring module
Overload The motor feeder has been
overloaded.
Overload and There is a load unbalance on the
unbalance motor feeder phases. Possible
causes:
Phase failure
•
Fault in the motor windings.
•
Prewarning The motor feeder is in overload
overload operation. If this condition
(I > 115 %) continues to persist, the motor
feeder will trip within a short
period of time due to overload.
Warning level The power factor cos phi has
cos phi < undershot the warning level.
Possible cause: The motor is
being operated without a load.
Warning The maximum current has
level I< undershot the warning level.
undershot
Warning The maximum current has
level I> overshot the warning level.
overshot
Warning The active power of the motor
level P< has undershot the warning level.
undershot
Warning The active power of the motor
level P> has overshot the warning level.
overshot
300
Troubleshooting
1. Repeat the teach-in
process.
2. Check the power
supply.
3. Check the
current/voltage
measuring module;
replace the defective
component.
Please check the motor
and the application that is
being driven by the motor.
The motor can be
switched on again after
the cooling down period
has expired or after an
emergency start.
Check the motor feeder
and the motor. The motor
can be switched on again
after the cooling down
period has expired or after
an emergency start.
Please check the motor
and the application that is
being driven by the motor.
Please check the
application that is being
driven by the motor.
Please check the
application that is being
driven by the motor.
Please check the
application that is being
driven by the motor.
Please check the
application that is being
driven by the motor.
Please check the
application that is being
driven by the motor.
System Manual, 05/2019, A5E40507475002A/RS-AD/004
Acknowledgment / Contactor
fault rectification control
Reset, auto-reset Tripped
Reset, auto-reset Tripped
Error
No.
1)
26
27
SIMOCODE pro