Safety Board - Philips CARDIOMD Service Manual

Gantry
3.2.2

Safety Board

The safety board is located in the rear of the table console. Its primary function is via on-board
relays to cut the motion power when required for safety reasons.
Relays on the board interrupt power to all motions at safety stops (that is, when an E-Stop occurs,
when a motion runaway is detected, etc.). These relays send a stop signal to the main power
supply and to the motion controllers. The motion controllers issue a message causing the
acquisition PC to display a message to the operator.
Furthermore, the safety board acts as a cable distribution point distributing signals.
The hand controller interfaces directly to the safety board. The hand controller Collision Override
button and Stop buttons are hardwired to relays in the safety circuit. The other hand controller
buttons are passed on to inputs on the linear motion controller.
The safety board includes a number of switches and pushbuttons used to calibrate the three
absolute encoders. These are indicated in Figure 3.8 on page 3-9.
3-8 CardioMD Service Manual
1MAN0158-H11 04-2005 CSIP Level 1