DIAGNOSTICS 7-7
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Copyright © 2010 by Kaufman & Robinson, Inc., 1306 Blue Spruce Drive, Unit A, Fort Collins, CO 80524
Tel: 970-495-0187, Fax: 970-484-9350, Internet: www.ionsources.com
Help Code
or Error
Message
Description
Possible Causes
and Corrective
Action
HLP 1
Current Latch – A high
current was encountered.
Power supply latched off to
prevent a failure.
Switch off the power until the
display is dark and then switch the
power back on to reset
HLP 2
Thermal Failure.
Open or shorted thermistor
detected. Contact KRI.
HLP 7
RS-485 Serial
Communication Lost.
HLP 7 is displayed.
Communication for remote RS-
485 communication was detected
and then lost.
Check connection of the RS-485
cables.
Make sure Auto Controller has in-
put power and is turned on.
HLP 8
RS-232 Interface Serial
Common Error.
High
current
fl
owing in the
ground connection of the
serial interface between
the unit and the PC.
Shows up only in remote
RS-232 operation. Display
says HLP 8 for 5 seconds.
Informational display only. No
action taken on unit operation.
Unit recovers from error condition
if the problem goes away.
Make sure all of the equipment
has adequate grounding.
Hot
Thermal Overload – In-
ternal temperature in the
power supply is too hot.
Power supply is in STAND-
BY.
Leave the power supply turned
on until the Hot message is
cleared.
Make sure there is no blockage of
the vents on the rear panel.
Ambient temperature is too high.
Reduce ambient temperature
below 40°C.
Not Rdy
Not Ready. – Discharge
Power supply is in
STANDBY.
Insuf
fi
cient line voltage. Fault will
clear itself when the power sup-
plies receive suf
fi
cient line volt-
age.
