Overview of NC errors TwinCAT 17 Version: 1.1 Error(Hex) Error(Dec) Error type Description 4253 16979 Monitoring "Reference cam became free too soon" During the referencing process for an axis it is moved in the direction of the referencing cam, and is only stopped again when the cam signal is reached. After the axis has then also physically stopped, the referencing cam must remain occupied until the axis subsequently starts back down from the cam in the normal way.
4254 16980 Monitoring "Clearance monitoring between activation of the hardware latch and appearance of the sync pulse" When the clearance monitoring is active, a check is kept on whether the number of increments between activation of the hardware latch and occurrence of the sync pulse (zero pulse) has become smaller than a pre-set value. This error is generated when that happens. (See parameters for the incremental encoder) 4255 16981 Memory "No memory available" The dynamic memory allocation for the set value generator, the SVB table or the SAF table has failed.
4256 16982 Monitoring "The table slave axis has no active table" Although the table slave axis has tables, none of the tables is designated as active. If this occurs during the run time the whole master/slave group is stopped by a run time error. 4257 16983 Function "Function not allowed" The requested function or the requested task is not logically allowed. An example for such an error message would be "set an actual position" for an absolute encoder (M3000, KL5001, etc.). 4258 16984 Function "Stopping compensation not allowed" It is not possible to stop the compensation, since compensation is already in the stopping phase.
4259 16985 Function "Slave table is being used" The slave table cannot be activated, because it is currently being used. 425A 16986 Function "Master or slave axis is processing a job (e.g. positioning command) while coupling is requested" A master/slave coupling of a certain slave type (e.g. linear coupling) cannot be executed. he master or intended slave axis is not in stand still state and is executing a job (e.g. positioning) at the same time as the coupling request received. For this couple type this is not allowed.
425B 16987 Parameter "Slave (start) parameter is incorrect" One of the slave start/coupling parameters is not allowed (Coupling factor is zero, the master position scaling of an cam is zero, etc.). 425C 16988 Parameter "Slave type is incorrect" The slave type does not match up to the (SVB) start type. 425D 16989 Function "Axis stop is already active" The axis stop/Estop is not initiated, because the stop/estop is already active. 425E 16990 Function "Maximum number of tables per slavegenerator reached" The maximum number of tables per slave generator is reached (e.g. "MC MultiCamIn" is limited to 4 _ tables).