KaVo 3D eXam, Operator'S Manual

Page: 17 / 170

k990400 September 19, 2007
Safety Items
2-5
NOTE:
When using this method; ensure that the factory installed
jumpers between terminals 3 & 5 and 4 & 6 are in place. These
jumpers should only be removed when an interlock system is used.
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 jumper between terminals 3 & 5 of the X-Ray
Interlock printed circuit board inside the Lower Control Center and
connect door switches and/or emergency stop switches in series
between terminals 3 & 5. 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.