6-8 REMOTE/AUTOMATED CONTROL
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A Run Fault occurs when the discharge fails to start or goes out. It also oc-
curs if the operating parameters are out of range for more than 30 seconds.
When a run fault occurs, the Auto Controller reverts to Standby and a help
code or error message is displayed on the front panel of the Auto Control-
ler. Use the help codes and error messages de
fi
ned in Diagnostics section
7 of this manual to determine the cause of the Run Fault. The help code or
error message is cleared when the remote enable pin 36 is released from
common pin 7 or 8.
The Beam Good function gives a real time check of the operating param-
eters. If the operating parameters are in range, the two Beam Good pins
are shorted together. If the operating parameters are out of range, then the
beam good pins are open.
Table 6-5. Run Fault and Beam Good pin descriptions.
Pin
Number
Description
7
Common.
8
Common.
23
Beam Good 1. Shorted to pin 24 when the operating parameters are in
range.
24
Beam Good 2. Shorted to pin 23 when the operating parameters are in
range.
19
Run Fault. Outputs 5 volts when a run fault occurs, otherwise it outputs 0
volts. Referenced to common pins 7 or 8.
6.2.6 Description of the DB-37 pins
The DB-37 pin analog/digital interface has been described above by sort-
ing out the various remote operating options. Table 6-6 below is provided
as a reference with a description of all the pins. The descriptions provided
below are brief; see the detailed descriptions above to understand the full
functionality.
Table 6-6. Pin descriptions for the female DB-37 connector on the Auto
Controller.
