HEIDENHAIN TNC 306 Service Manual - Manual (Page 7)

SERVICE MANUAL TNC 306/360
Page 5
HEIDENHAIN Service
2.1 Causes of Minor Error Messages
OPERATING PARAMETERS ERASED
- With new and exchange controls, the machine parameters are always erased.
- Software replaced with different version (see section. 15.1)
- Buffer batteries and accumulator defective
- RAM error on PROCESSOR board
LIMIT SWITCH
- "Manual" operating mode:
The pre-determined software limit switch or the additional limit in the auxiliary
operating modes has been reached during traverse with the direction keys.
- "Automatic" operating mode:
The calculated position of the current block is beyond the software limit switch
range or beyond the additional limit. No positioning takes place.
Machine Parameters for Software Limit Switches
X+ X- Y+ Y-
Default setting
Selection via M2816, M2817
Selection via M2816, M2817 910.0
911.0
912.0 920.0
921.0
922.0 910.1
911.1
912.1 920.1
921.1
922.1
Z+ Z- IV+ IV-
Default setting
Selection via M2816, M2817
Selection via M2816, M2817 910.2
911.2
912.2 920.2
921.2
922.2 910.3
911.3
912.3 920.3
921.3
922.3
POWER INTERRUPTED
- After a reset signal at the power supply (e.g. line voltage drops)
- Important machine parameters may have been altered,
e.g. MP 10, MP 210, MP 1390, MP 4010, MP 7210 etc.
- For further causes see section 15.1 and 17.4
POSITIONING ERROR
- The position monitoring system set in the machine parameters 1410 or 1710 has
responded. (Check the approach behaviour of the axis and readjust, if necessary.)
EMERGENCY STOP
-The EMERGENCY STOP loop has been interrupted (see section 17.4).
-The PLC editor program has been translated