Siemens SIMOTICS S-1FL6 Operating Instructions Manual page 260

Diagnostics
12.2 List of faults and alarms
Fault
F7093: Drive: Test signal
error
Message class: Error in the
parameterization / configura-
tion / commissioning proce-
dure (18)
Reaction: OFF3
Acknowledgement:
IMMEDIATELY
F7220: Drive: Master control
by PLC missing
Message class: Communica-
tion error to the higher-level
control system (9)
Reaction: OFF1
Acknowledgement:
IMMEDIATELY
F7403: Lower DC link voltage
threshold reached
Message class: Infeed faulted
(13)
Reaction: OFF1
Acknowledgement:
IMMEDIATELY
F7404: Upper DC link voltage
threshold reached
Message class: DC link over-
voltage (4)
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F7410: Current controller
output limited
Message class: Application /
technological function faulted
(17)
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
260
Cause
The limit rotation of the motor (p29027) is
inappropriate.
The "master control by PLC" signal was
missing in operation.
Input for "master control by PLC" is
•
incorrect.
The higher-level control has withdrawn
•
the "master control by PLC" signal.
Data transfer via the fieldbus (mas-
•
ter/drive) was interrupted.
The DC link voltage monitoring is active
and the lower DC link voltage threshold
was reached in the "Operation" state.
The DC link voltage monitoring is active
and the upper DC link voltage threshold
was reached in the "Operation" state.
The condition "I_act = 0 and Uq_set_1
longer than 16 ms at its limit" is present
and can be caused by the following:
Motor not connected or motor contactor
•
open.
No DC link voltage present.
•
Motor Module defective.
•
Remedy
Modify the value of parameter p29027.
Check the input for "master control by
•
PLC".
Check the "master control by PLC" signal
•
and, if required, switch in.
Check the data transfer via the fieldbus
•
(master/drive).
Check the line supply voltage.
•
Check the infeed.
•
Reduce the lower DC link threshold.
•
Switch out (disable) the DC link voltage
•
monitoring.
Check the line supply voltage.
•
Check the infeed module or the brake
•
module.
Increase the upper DC link voltage
•
threshold.
Switch out (disable) the DC link voltage
•
monitoring.
Connect the motor or check the motor
•
contactor.
Check the DC link voltage.
•
Check the Motor Module.
•
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E37208830-002