Siemens SINAMICS V90 Operating Instructions Manual page 276

Diagnostics
12.1 List of faults and alarms
Fault
F1911: PROFIdrive: Clock
cycle synchronous operation
clock cycle failure
Message class: Communica-
tion to the higher-level con-
troller faulted (9)
Reaction: OFF1
Acknowledgement:
IMMEDIATELY
F1912: PROFIdrive: Clock
cycle synchronous operation
sign-of-life failure
Message class: Communica-
tion to the higher-level con-
troller faulted (9)
Reaction: OFF1
Acknowledgement:
IMMEDIATELY
F7011: Motor overtempera-
ture
Message class: Motor over-
load (8)
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F7085: Open-loop/closed-
loop control parameters
changed
Message class: Error in the
parameteriza-
tion/configuration/commission
ing procedure (18)
Reaction: NONE
Acknowledgement:
IMMEDIATELY
276
Cause
The global control telegram to synchronize
the clock cycles has failed - for several DP
clock cycles or has violated the time grid
specified in the parameterizing telegram
over several consecutive DP clock cycles
(refer to the bus cycle time, Tdp and
Tpllw).
The maximum permissible number of er-
rors in the controller sign-of-life (clock
synchronous operation) has been exceed-
ed in cyclic operation.
Motor overloaded
•
Motor surrounding temperature too
•
high
Wire breakage or sensor not connected
•
Motor temperature model incorrectly
•
parameterized
Open-loop/closed-loop control parameters
have had to be changed for the following
reasons:
As a result of other parameters, they
•
have exceeded the dynamic limits.
They cannot be used due to the fact
•
that the hardware detected not having
certain features.
Remedy
Check the physical bus configuration
•
(cable, connector, terminating resistor,
shielding, etc.).
Check whether communication was briefly
•
or permanently interrupted.
Check the bus and controller for utilization
•
level (e.g. bus cycle time Tdp was set too
short).
Physically check the bus (cables, con-
•
nectors, terminating resistor, shielding,
etc).
Correct the interconnection of the control-
•
ler sign-of-life.
Check whether the controller correctly
•
sends the sign-of-life (e.g. create a trace
with STW2.12...STW2.15 and trigger sig-
nal ZSW1.3).
Check the permissible telegram failure
•
rate (p0925).
Check the bus and controller for utilization
•
level (e.g. bus cycle time was set too
short).
Reduce the motor load.
•
Check the surrounding temperature and
•
the motor ventilation.
Check the wiring and the connection.
•
Check the motor temperature model pa-
•
rameters.
It is not necessary to change the parameters
as they have already been correctly limited.
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2017, A5E37208830-003