123
Preventive Maintenance
3ADW000488R0101 DCS880 Service manual e a
9 years preventive maintenance
Following additional actions have to take place:
− Replace the power interface board SDCS-
PIN-H01 of units H1 … H5 (DCS880-S0b-
0020-dd … DCS880-S0b-1190-dd).
− The SDCS-PIN-H01 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-H01 are aging. The SDCS-PIN-
H01 also is equipped with several
capacitors, which are sensitive to high
ambient temperature.
− Aging of the components result in:
− Damage other devices.
− Trip the drive and cause breakdown
time.
− Replace the power supply board SDCS-
POW-H01 of units H6 … H8 (DCS880-S0b-
0900-dd … DCS880-S0b-5200-dd) and
DCS880-R (Rebuild- and Upgrade Kits).
− The SDCS-POW-H01 is located between the
module door on 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-POW-H01 are aging. The SDCS-
POW-H01 also is equipped with several
capacitors which are sensitive to high
ambient temperature.
− Aging of the electronic card result in:
− Damage other devices.
− Trip the drive and cause unexpected
shutdown.
− Replace the flat cables of all units H1 … H8.
Environmental conditions, especially temperature and humidity could cause corrosion on the contact
surfaces and embitterment of the insulation.
− Aging of the flat cables result in:
− Contact problems.
− Flat cable insulation breaks.
To Next Page
Loading...
