Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 4003

Siemens 4003 - Axis incorrect assignment of master channel in machine data

For some applications, it is useful to operate an axis in several channels (C axis or spindle on single spindle or double carriage machines). The machine axes which are defined through the channel-specific MD20070 $MC_AXCONF_MACHAX_USED in several channels, must be assigned to a master channel with the axis-specific MD30550 $MA_AXCONF_ASSIGN_MASTER_CHAN. For axes that are activated in one channel only, the number of this channel or zero must be entered as a master channel Control reaction: NC not ready. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

4003

Siemens 4003 - Axis incorrect assignment of master channel in machine data

Axis incorrect assignment of master channel in machine data

For some applications, it is useful to operate an axis in several channels (C axis or spindle on single spindle or double carriage machines). The machine axes which are defined through the channel-specific MD20070 $MC_AXCONF_MACHAX_USED in several channels, must be assigned to a master channel with the axis-specific MD30550 $MA_AXCONF_ASSIGN_MASTER_CHAN. For axes that are activated in one channel only, the number of this channel or zero must be entered as a master channel Control reaction: NC not ready. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

Safety

  • Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.

Common Causes

  • For some applications, it is useful to operate an axis in several channels (C axis or spindle on single spindle or double carriage machines).
  • The machine axes which are defined through the channel-specific MD20070 $MC_AXCONF_MACHAX_USED in several channels, must be assigned to a master channel with the axis-specific MD30550 $MA_AXCONF_ASSIGN_MASTER_CHAN.
  • For axes that are activated in one channel only, the number of this channel or zero must be entered as a master channel

Troubleshooting Steps

  1. 1Please inform the authorized personnel/service department.
  2. 2Modify MD 20070: $MC_AXCONF_MACHAX_USED and/or MD30550: $MA_AXCONF_ASSIGN_MASTER_CHAN.
  3. 3Alarms NCK alarms
  4. 4Switch control OFF - ON

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