Siemens SINAMICS G120D - Page 318

Alarms, faults and system messages
11.6 List of alarms and faults
Converter with control units CU250D-2
318 Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
Number
Cause
Remedy
F07485 Fixed stop is not reached In a traversing block with the FIXED STOP task the end position was
reached without detecting a fixed stop. Remedy:
• Check the traversing block and locate the target position further into
the workpiece.
• Check the "fixed stop reached" control signal (p2637).
• Reduce the maximum following error window to detect the fixed stop
(p2634).
A07486 Intermediate stop missing Connect a "1" signal at the binector input "no intermediate
stop/intermediate stop" (BI: p2640) and re-start motion.
A07487 Reject traversing task missing Connect a "1" signal at the binector input "do not reject traversing
task/reject traversing task" (BI: p2641) and re-start motion.
F07488 Relative positioning not possible
In the mode "direct setpoint input/MDI", for the continuous transfer (p2649
= 1), relative positioning was selected (BI: p2648 = 0 signal). Correct the
selection.
A07489 Reference point offset outside
window
For the function "flying referencing", the difference between the measured
position at the measuring probe and the reference point coordinate is
outside the parameterized window. Remedy:
• Check the mechanical system.
• Check the parameterization of the window (p2602).
F07490 Enable signal withdrawn while
traversing
Set the enable signals.
F07491 STOP cam, minus actuated
Leave the STOP cam minus in the positive traversing direction and retract
the axis to the valid traversing range.
F07492 STOP cam, plus actuated Leave the STOP cam plus in the negative traversing direction and retract
the axis to the valid traversing range.
F07493 Overflow of the value range for the
position actual value
The value range (-2147483648 ... 2147483647) for representing the
position actual value was exceeded. Remedy:
If necessary reduce the traversing range or position resolution (p2506).
A07495 Reference function interrupted An activated reference function (reference mark search or measuring
probe evaluation) was interrupted. Possible causes:
• Encoder fault
• Reference mark search and measuring probe evaluation
simultaneously activated (BI: p2508 and BI: p2509 = 1 signal).
• Activated reference function (reference mark search or measuring
probe evaluation) was de-activated (BI: p2508 and BI: p2509 = 0
signal).
A07496 Enable is not possible It is not possible to enable the basic positioner as at least one signal is
missing. Causes:
• EPOS enable missing (BI: p2656).
• Position actual value, valid feedback signal missing (BI: p2658).
F07499 Reversing cam approached with
the incorrect traversing direction
Check the wiring of the reversing cam (BI: p2613, BI: p2614).
F07503 STOP cam approached with the
incorrect traversing direction
Check the wiring of the STOP cam (BI: p2569, BI: p2570).
A07505 Fixed stop task for U/f/SLVC
operation not possible
Change the open-loop/closed-loop control mode (p1300).