Service manual

SERVICE MANUAL TNC 415B/425
Page 5
Issue: 20.08.95
2.1 Causes of Minor Error Messages
OPERATING PARAMETERS ERASED
- With new and exchange controls, the machine parameters are always erased
- Defective buffer batteries, accumulator or capacitor
- RAM error on the processor board
- Software exchanged
LIMIT SWITCH <AXIS>
- "Manual" Operating Mode
The preset software limit switch has been reached during traverse with the axis address keys.
- "Automatic" Operating Mode
The calculated position of the current block is beyond the software limit switch range or beyond the
additional limit (set with the MOD function <AXIS LIMIT>). The positioning is not performed.
Machine Parameters for the Software Limit Switches
X+ X- Y+ Y- Z+ Z-
Default setting
Activation via PLC
1)
Activation via PLC
1)
910.0
911.0
912.0
920.0
921.0
922.0
910.1
911.1
912.1
920.1
921.1
922.1
910.2
911.2
912.2
920.2
921.2
922.2
IV+ IV- V+ V-
Default setting
Activation via PLC
1)
Activation via PLC
1)
910.3
911.3
912.3
920.3
921.3
922.3
910.4
911.4
912.4
920.4
921.4
922.4
1)
PLC markers M 2816 and M 2817
POWER INTERRUPTED
- After a reset signal of the power supply (e.g. line voltage drops)
- Important machine parameters may have been changed:
e.g. MP 210, MP 410.3, MP 730, MP 3240.1, MP 7210, MP 7310
POSITIONING ERROR
- The servo lag monitor set in the machine parameters 1410.X or 1710.X has responded.
(Check the run-in behaviour of the axis; readjust, if necessary.)
PLC PROGRAM NOT TRANSLATED
- After editing, the PLC program must be compiled (translated) anew.