Detecting Errors On The Composite Power Supply Pba - Oce 3121 Technical & Service Manual

3 Detecting errors on the composite power supply PBA

The composite power supply PBA has a self diagnostic function for errors in
the output of the PBA and its communication with the DC controller PBA.
The errors are indicated by the flashing frequency of LED100 on the DC con-
troller PBA (See the table below). At the same time, the control panel displays
an error code.
Deterioration of the scanning lamp is also checked by this detection mecha-
nism. (In this case you need to replace the lamp to clear the error)
Status indications by flashing LED
Pattern
0.5 seconds ON, 0.5 seconds
OFF
2 seconds ON, 2 seconds
OFF
3 seconds ON, 3 seconds
OFF
5 seconds ON, 5 seconds
OFF
10 TSM Océ 3121/3122
VR1
LED100
Message Description
Normal The composite power supply PBA
is functioning in a normal manner.
Excess cur- An excess current has been
rent detected. Or, an error in the load
relation of +24VR or +24VU out-
puts.
Low-voltage The difference between the set-
control error ting for +24VR output and the
in stand-by control value in stand-by is larger
than specified. Upon detection,
error data is sent to the DC con-
troller PBA. "E803"will be indi-
cated on the control panel.
Error in the A communication error: DC con-
communica- trol PBA to composite power sup-
tion with the ply PBA. The communication
DC controller data was not renewed within 8
PBA seconds. LED100 may fail to
flash. E191 is logged.
Trouble shooting