Sinumerik Alarm 10203 Channel %1 NC start without reference point
%1 = Channel number
NC start has been activated in the MDA or AUTOMATIC mode and at least one axis that needs to be referenced has not reached its reference point.
– Alarm display.
– Interface signals are set.
Please inform the authorized personnel/service department. Via the channel-specific MD 20700: REFP_NC_START_LOCK (NC Start without reference point) you can decide whether the axis must be referenced before NC Start or not. The start of referencing can be enabled channel-specific or axis-specific.
• Channel-specific reference point approach: The rising edge of the interface signal “acti- vate referencing” (DB 21 – 28, DBX 1.0) starts an automatic sequence which starts the axes of the channel in the same sequence as specified in the axis-specific MD 34110 REFP_CYCLE_NR (axis sequence channel-specific referencing). 0: The axis does not participate in channel-specific referencing, but it must be referenced for NC Start, -1: The axis does not participate in channel-specific referencing, but it need not be referenced for NC Start, 1- 8: Starting sequence for the channel-specific referencing (simultaneous start at the same no.), 1 – 31: CPU type
• Axis-specific referencing: Press the direction key that corresponds to the approach direction in the axis-specific MD 34010 REFP_CAM_MDIR_IS_MINUS (reference point approach in minus direction).
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens