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Preventive Maintainance 
3ADW000195R0501 DCS800 Service Manual e e
9 years preventive maintenance 
  Following additional actions have to take place: 
  Replace the power interface board SDCS-PIN-4 of units D1 to D4. 
 
 
 
  SDCS-PIN-4 
 
  The SDCS-PIN-4 is located between the heat sink and the electronic tray. It 
operates continuously, because it supplies the drive electronics even when the 
armature current is switched-off. Therefore all its components are exposed to 
hot conditions. 
Additionally the electrolytic capacitors on the SDCS-PIN-4 are aging. The 
SDCS-PIN-4 also is equipped with several capacitors which are sensitive to 
high ambient temperature. 
Where used: 
 
DCS800-S0x-0020, …, DCS800-S0x-1000  D1 to D4 
 
Aging of the electronic card result in: 
1.  Damage other devices 
2.  Trip the drive and cause break-down time 
  Replace the power supply board SDCS-POW-4 of units D5 to D7 and DCS800-
R (Rebuild- and Upgrade Kits). 
 
 
 
  SDCS-POW-4