HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 8)

31-o
Kundendienst
SERVICE MANUAL
01.09.1995
Page
5
2.1. Causes of Minor Error Messages
OPERATING PARAMETERS ERASED
With new and exchange controls, the machine parameters are always erased.
Software exchanged with different software versions.
Defective buffer batteries, accumulator or capacitor
RAM error on the processor board
LIMIT SWITCH X+
“Manual” operating mode:
The preset
software limit switch has been reached during traverse with the directional 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 MOD function
The positioning is not
performed.
Machine Parameters for the Software Limit Switches
Default setting
Activation via PLC
Activation via PLC
x+ Y+ z+
910.0 920.0 910.1 920.1 910.2 920.2
911 .o 921 .o 911.1 921.1 911.2 921.2
912.0 922.0 912.1 922.1 912.2 922.2
IV+ v +
Default setting 910.3 920.3 910.4 920.4
Activation via PLC 911.3 921.3 911.4 921.4
Activation via PLC 912.3 922.3 912.4 922.4
POWER INTERRUPTED
After a reset signal of the power supply (e.g. line voltage drops)
Important machine parameters may have been changed;
e.g. MP410.3, MP730, MP3240.1. MP7210. MP7310
POSITIONING ERROR
The servo lag monitor set in the machine parameters MP1410 or has responded.
(Check the run-in of the axis; readjust, if necessary)
PLC PROGRAM NOT TRANSLATED
After editing, the PLC program must be compiled (translated) anew. Use the soft key
or switch off the control!