Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-60 minutes

Alarm 61412

Siemens 840D 61412 - Channel block: channel basic frame not present

The alarm is triggerd by the following cycles: CYCLE997, CYCLE119 Remedy: Set MD 28081>0, $P_CHBFRMASK>0

Siemens SINUMERIKServo/AxisIntermediate30-60 minutes

61412

Siemens 840D 61412 - Channel block: channel basic frame not present

Channel block: channel basic frame not present

The alarm is triggerd by the following cycles: CYCLE997, CYCLE119 Remedy: Set MD 28081>0, $P_CHBFRMASK>0

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • MD 28081 (Channel Basic Frame Mask) not set or set to zero
  • $P_CHBFRMASK parameter not configured or set to zero
  • CYCLE997 or CYCLE119 executed without proper channel frame initialization
  • Missing or incomplete machine data configuration for channel basic frame
  • Channel frame data corrupted or not loaded during startup sequence

Troubleshooting Steps

  1. 1Verify MD 28081 is set to a value greater than 0 using diagnostic/parameter editor in Siemens software
  2. 2Check $P_CHBFRMASK parameter value in the part program or machine data; confirm it is greater than 0
  3. 3Review the sequence of CYCLE997 or CYCLE119 calls to ensure they execute only after channel frame is established
  4. 4Perform a complete machine data backup and reload to ensure all frame-related parameters are properly initialized
  5. 5Reset the control and perform a full startup sequence with frame initialization enabled; monitor alarm log for reoccurrence

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