Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

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

Alarm 4001

Siemens 4001 - Axis defined for more than one channel via machine data

In the channel-specific MD20070 $MC_AXCONF_MACHAX_USED [CHn, AXm]=x (n. channel number, m. channel axis number, x. machine axis number), several channels were assigned to a machine axis without having a master channel defined for this axis. - Control reaction: NC not ready. Mode group not ready, also effective for single axes. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

4001

Siemens 4001 - Axis defined for more than one channel via machine data

Axis defined for more than one channel via machine data

In the channel-specific MD20070 $MC_AXCONF_MACHAX_USED [CHn, AXm]=x (n. channel number, m. channel axis number, x. machine axis number), several channels were assigned to a machine axis without having a master channel defined for this axis. - Control reaction: NC not ready. Mode group not ready, also effective for single axes. 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

  • In the channel-specific MD20070 $MC_AXCONF_MACHAX_USED [CHn, AXm]=x (n ... channel number, m ... channel axis number, x ... machine axis number), several channels were assigned to a machine axis without having a master channel defined for this axis.
  • -

Troubleshooting Steps

  1. 1Please inform the authorized personnel/service department.
  2. 2In the axis-specific MD30550 $MA_AXCONF_ASSIGN_MASTER_CHAN [AXm]=n (m ... machine axis number, n ... channel number), a master axis was set for the axes that are supposed to be alternately assigned by the NC program to one or the other channel.
  3. 3Switch control OFF - ON. Continuation: Alarms

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Always verify with your machine manual or a certified technician before performing service procedures.