Siemens Sinamics V90 Operating Instructions Manual page 396

Diagnostics
11.2 List of faults and alarms
Fault
F7484: Fixed stop outside the
monitoring window
Reaction: OFF1 (OFF2,
OFF3)
Acknowledgement:
IMMEDIATELY
F7485: Fixed stop not
reached
Reaction: OFF1 (OFF2,
OFF3)
Acknowledgement:
IMMEDIATELY
F7488: EPOS: Relative posi-
tioning not possible
Reaction: OFF1 (OFF2,
OFF3)
Acknowledgement:
IMMEDIATELY
F7490: Enable signal with-
drawn while traversing
Reaction: OFF1
Acknowledgement:
IMMEDIATELY
F7491: STOP cam minus
reached
Reaction: OFF3
Acknowledgement:
IMMEDIATELY
F7492: STOP cam plus
reached
Reaction: OFF3
Acknowledgement:
IMMEDIATELY
394
Cause
In the "fixed stop reached" state, the axis
has moved outside the defined monitoring
window (p2635).
In a traversing block with the task FIXED
STOP, the end position was reached with-
out detecting a fixed stop.
In the mode "direct setpoint input/MDI", for
continuous transfer relative positioning
was selected.
For a standard assignment, another
•
fault may have occurred as a result of
withdrawing the enable signals.
The drive is in the "switching on inhibit-
•
ed" state (for a standard assignment).
The STOP cam minus was reached.
For a positive traversing direction, the
STOP cam minus was reached, i.e. the
wiring of the STOP cam is incorrect.
The STOP cam plus was reached.
For a negative traversing direction, the
STOP cam plus was reached, i.e. the
wiring of the STOP cam is incorrect.
Remedy
Check the monitoring window (p2635).
•
Check the mechanical system.
•
Check the traversing block and locate the
•
target position further into the workpiece.
Check the "fixed stop reached" control
•
signal.
If required, reduce the maximum following
•
error window to detect the fixed stop
(p2634).
Check the control.
Set the enable signals or check the cause
•
of the fault that first occurred and then re-
sult (for a standard assignment).
Check the assignment to enable the basic
•
positioning function.
Leave the STOP cam minus in the posi-
•
tive traversing direction and return the ax-
is to the valid traversing range.
Check the wiring of the STOP cam.
•
Leave the STOP cam plus in the negative
•
traversing direction and return the axis to
the valid traversing range.
Check the wiring of the STOP cam.
•
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2019, A5E36037884-007