Precision II Operation and Maintenance Manual C
3-36
996-0255 rev. b
SHUTTER INTLK
RESET KEYSWITCH
NEW BATTERY
SHOT COUNT 0
The following is a list of interlock interruptions sensed by the CU601C:
From Laser Bench From Cooling Group
Shutter Water flow
Dye Water temp.
Laser Head Water level
Traps
Traps are internally generated microprocessor interrupts.
A trap indicates that something has gone wrong with the
operation of the CU601C. The traps that can occur are
listed as follows:
• Illegal instruction
• Bus error
• Address error
• Spurious interrupt.
If you see any of these traps being reported to the remote box, try reset-
ting the CU601C by turning the front panel keyswitch OFF then ON.
Usually this corrects the problem. If it does not, contact Continuum for
service.
6. Maintenance
New Battery
The CU601C uses a battery to backup the CMOS memory
on the microprocessor board. This battery is a type “C”
size 3.6V lithium and should have a lifespan of five years.
Care should be taken when handling lithium batteries.
Read warnings on battery case. The battery is located in
the CU601C chassis and is easily removed from its holder.
If replacement is necessary, replace with same type or
equivalent. Make sure of proper polarity when inserting
into the battery holder. Alkaline batteries may not be used
because they only supply 1.5 volts. The CU601C will
detect a battery voltage failure or if a new battery has been
installed. If this occurs the remote box will go through the
six second countdown, beep six times and display: