Siemens SINAMICS V90 Operating Instructions Manual page 331

Alarm
A1045: Configuring data
invalid
A1920: Drive Bus: Receive
setpoints after To
A1932: Drive Bus clock cycle
synchronization missing for
DSC
A5000: Drive heat sink over-
temperature
A7012: Motor temperature
model 1/3 overtemperature
A7441: LR: Save the position
offset of the absolute encoder
adjustment
A7454: LR: Position value
preprocessing does not have
a valid encoder
A7455: EPOS: Maximum
velocity limited
A7456: EPOS: Setpoint ve-
locity limited
A7461: EPOS: Reference
point not set
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2015, A5E36037884
Cause
An error was detected when evaluating the
parameter files saved in the non-volatile
memory. Because of this, under certain
circumstances, several of the saved pa-
rameter values were not able to be ac-
cepted.
Output data of Drive Bus master (set-
points) received at the incorrect instant in
time within the Drive Bus clock cycle.
There is no clock synchronization or clock
synchronous sign of life and DSC is se-
lected.
Note:
DSC: Dynamic Servo Control
The alarm threshold for overtemperature at
the inverter heat sink has been reached.
If the temperature of the heat sink increas-
es by an additional 5 K, then fault F30004
is initiated.
The motor temperature model 1/3 identi-
fied that the alarm threshold was exceed-
ed.
The status of the absolute encoder ad-
justment has changed.
In order to permanently save the deter-
mined position offset (p2525) it must be
saved.
The parameter configuration of encoder is
incorrect.
The maximum velocity (p2571) is too high
to correctly calculate the modulo correc-
tion.
Within the sampling time for positioning,
with the maximum velocity, a maximum of
the half modulo length must be moved
through. p2571 was limited to this value.
The actual setpoint velocity is greater than
the parameterized maximum velocity and
is therefore limited.
When starting a traversing block/direct
setpoint input, a reference point is not set.
11.2 List of faults and alarms
Remedy
Save the parameterization in SINAMICS V-
ASSISTANT using the "Copy RAM to ROM"
function or on the BOP. This overwrites the
incorrect parameter files in the non-volatile
memory – and the alarm is withdrawn.
Check bus configuration.
•
Check parameters for clock cycle syn-
•
chronization (ensure To > Tdx).
Note:
To: Time of setpoint acceptance
Tdx: Data exchange time
Set clock synchronization across the bus
configuration and transfer clock synchronous
sign-of-life.
Check the following:
Is the surrounding temperature within the
•
defined limit values?
Have the load conditions and the load
•
duty cycle been appropriately dimen-
sioned?
Has the cooling failed?
•
Check the motor load and reduce it if
•
required.
Check the motor surrounding tempera-
•
ture.
Not necessary. This alarm automatically dis-
appears after the offset has been saved.
Default the drive and re-configure the param-
eters.
Reduce the maximum velocity (p2571).
Decrease the actual setpoint velocity.
Reference the system (search for reference,
flying referencing, set reference point).
Diagnostics
331