DIAGNOSTICS 7-1
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7 Diagnostics
The following information is intended to facilitate troubleshooting of the Auto Con-
troller and associated power supplies. This information assumes that the Auto
Controller and power supplies are connected to power and that all interconnects
between power supplies and the ion source cable are made correctly. It is also
assumed that all gas connections are in good condition and that the gas circuit is
complete from the gas bottle to the ion source.
Power must be removed from the Auto Controller and power supplies prior
to performing maintenance.
7.1 Auto Controller
The auto controller front panel display has an additional function of displaying
help codes and error messages. If it becomes necessary to display a help code
or an error message, the Auto Controller may switch to standby mode depend-
ing on the particular code or message. The front panel display will alternate
between displaying “HLP” and a number for the help code. The error messages
will be displayed by alternating two abbreviated words. A description of the help
codes and the error messages is given below in table 7-1 along with possible
corrective action that may need to be taken.
Table 7-1. Help codes and error messages for the Auto Controller.
Help Code
or Error
Message
Description
Possible Causes And
Corrective Action
HLP 7
RS-485 Serial Commu-
nication Lost. - HLP 7 is
displayed when the unit
is in REMOTE and unit is
in STANDBY.
Communication for remote RS-
485 communication was detect-
ed and then lost.
Check connection of the RS-485
cables.
Make sure Auto Controller has
input power and is turned on.
