Overview of Alarms 11/2006
HMI alarms
2-676
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
120020 PCU fan monitoring CPU fan
Definitions: Low fan speed of CPU fan.
Interface bit DB10.DB103.4 is being set.
Remedy: Switch off the PCU, let it cool off and have the function of the CPU fan of PCU module checked by
qualified service personnel (fan problem).
Spare part description: Manual Operator Components SINUMERIK
840D/840Di/810D section PCU 50 V3 spare parts, replacement of device fan.
120021 PCU fan monitoring housing fan 1
Definitions: Low fan speed of PCU casing fan 1.
Interface bit DB10.DB103.4 is being set.
Remedy: Switch off the PCU, let it cool off and have the function of casing fan 1 of PCU module checked by
qualified service personnel (fan problem).
Spare part description: Manual Operator Components SINUMERIK
840D/840Di/810D section PCU 50 V3 spare parts, replacement of device fan.
120022 PCU fan monitoring housing fan 2
Definitions: Low fan speed of PCU casing fan 2.
Interface bit DB10.DB103.4 is being set.
Remedy: Switch off the PCU, let it cool off and have the function of casing fan 2 of PCU module checked by
qualified service personnel (fan problem).
Spare part description: Manual Operator Components SINUMERIK
840D/840Di/810D section PCU 50 V3 spare parts, replacement of device fan.
120029 PCU: fatal hard disk error
Definitions: A high number of write/read errors was found on the hard disk.
This indicates a hardware failure to come soon (S.M.A.R.T error).
Interface bit DB10.DB103.3 is being set.
Remedy: Back up the PCU data and have the hard disk replaced by qualified service personnel.
Spare part description: Manual Operator Components SINUMERIK
840D/840Di/810D section PCU 50 V3 spare parts.
Hard disk replacement: Installation & Start-Up Guide HMI SINUMERIK
840D/840Di/810D section Installation variants/data backup.
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