2-6
Gendex GXCB-500
TM
Service Manual
G990710 30 June 2008
System Safety Devices
Emergency Stops
This manual contains instructions for safe operation of this dental X-
ray System. In the event of an emergency (any moving component
collides with any parts of the equipment or items in the environment,
or that could cause physical injury to the Patient), the Operator and/
or Patient should utilize the Emergency Stop buttons to turn off the
power to all moving parts in order for the Patient to be safely
removed from the machine.
Warning System
The System is equipped with provisions for warning lights and/or
audible alarms when X-ray power is energized.
An externally powered Warning System can be connected to the
cable provided which is capable of 250 volts, 50/60 hertz, and 2.5
amps. When X-ray power is energized the warning system is also
energized.
Interlock System
This System is equipped with provisions for an Interlock Circuit
which, when opened, will turn off X-ray power. This is a low voltage
circuit, 12 volts DC. To use the Interlock Circuit disconnect the
factory installed Shorting Plug. Connect the supplied Interlock
Cable to the scanner. Connect door switches (NO/COM terminals)
and/or emergency stop switches (NC/COM terminals) in series
between the other end of the Interlock Cable wires.
Multiple door switches and/or emergency stop switches can be
connected as long as the devices are connected in series. The entire
circuit must be a closed loop when all of the doors are closed and/or
emergency stop switches are in their normally closed state.
Whenever the door switch or switches are opened or emergency stop
button(s) pressed the X-ray power will be turned off. X-ray power
cannot be turned on when the interlock circuit is open.
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