Siemens SINUMERIK 808D Manual de serviço - Página 17
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Service case
of hardware
fault
If the fault is ： Press the axis + (or axis-) key, screen coordinates
Case2
change but the machine does not move.
Check whether the PPU is in the program test
state.
1. Whether the indicator light of the
"Program test" key on MCP is on (it should not
be on).
2. Whether the "PRT" indicator on the PPU
screen is activated (it should not be activated).
Check whether the settings of machine data
MD30350
are correct.
1. Feed axis MD30130=2 / MD30240=3
2. MD30350=0
If the fault is ： Press the axis + (or axis-) key, the machine can
Case3
move until the hardware limit switch alarm appears.
Check whether the machine deceleration switches and their related
connections are broken.
If the fault is ： Press the axis + (or axis-) key, the machine is always
Case4
moving in the opposite direction.
Check whether the machine deceleration switches can bounce.
Check whether the machine deceleration switches and their related
connections
are broken.
808D turning and milling
MD30130/MD30240/
page 17
If the fault is ： Press the axis + (or axis-) key, the machine moves
Case5
only a short distance.
Check whether the settings of machine data
machine deceleration switches are not available when 34000=0).
If the fault is ： Press the axis + (or axis-) key, the machine alarm
Case6
20002 appears after exiting the slowdown switch.
Check whether the machine approaching switch and its related connections
are damaged.
Check whether the settings of machine data
Check whether the encoder corresponding to the feed axis and its related
connections are damaged.
If the fault is ： Press the axis + (or axis-) key, the start point and
Case7
automatic processing program are running normally, but the
system does not respond when returning to the reference point.
Check whether the settings of machine data
cannot return to the reference point when 30200=0).
MD34000
are correct (the
MD34060
are correct.
MD30200
are correct (it
Service guide