Philips CARDIOMD Service Manual page 119

Test Terminal
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP22
TP23
TP24
1MAN0158-H11 04-2005 CSIP Level 1
Description
+24 V DC power input
Return (reference) for the +24 V DC power input
+24 V DC if vertical and horizontal ultimate stop switches are OK and if multifuse MP3
on the safety board is not blown. Otherwise the voltage reading is 0 V DC
+24 V DC if rotational ultimate stop switches are OK and if multifuse MP3 on the safety
board is not blown. Otherwise the voltage reading is 0 V DC
+24 V DC if multifuse MP3 is OK. If the fuse is blown, the voltage reading is 0 V DC
+24 V DC if the table (gantry) E-Stop is not engaged and multifuse MP4 on the safety
board is not blown. Otherwise the voltage reading is 0 V DC
+24 V DC if the remote E-Stop (next to the acquisition PC) is not engaged and multifuse
MP4 on the safety board is not blown. Otherwise the voltage reading is 0 V DC
+24 V DC if the collision circuit (pads or covers) is not detecting a collision and
multifuse MP2 on the safety board is not blown. Otherwise the voltage reading is 0 V DC
+24 V DC during normal operation. Signal goes to approx. 0 V DC when one of the stop
buttons is pressed (E-Stop or hand controller Stop). After activation of the hand
controller Collision Override button, the signal once again goes to +24 V DC
Not to be used by Service
Status of table position switch. A transition from 0 to +4 V DC or from +4 to 0 V DC
indicates that the table is passing its center position as used for patient load positioning
0 V DC. If +12 to 16 V DC is measured, the master motion controller has issued a
Runaway fault
0 V DC. If +12 to 16 V DC is measured, the slave motion controller has issued a
Runaway fault
Approx. 0 V DC indicates that the table is moving inwards. +24 V DC indicates that the
table is not moving inwards
Approx. 0 V DC indicates that the table is moving outwards. +24 V DC indicates that the
table is not moving outwards
Hand controller LED drive signal. If +24 V DC the hand controller LED is off. If approx.
0 V DC the hand controller LED is on
+ 5 V DC. Internally generated and used voltage
Return (reference) for TP19 and TP 20
Motion controller + 5 V used internally on the safety board
Master motion controller burst clock output to read positions from the three absolute
encoders. Signal transition between approx. 0 and +5 V
Return (reference) for the +24 V DC power input
Return (reference) for the +24 V DC power input
Return (reference) for the +24 V DC power input
0 V DC during normal operation. If +12 to 16 V DC, one of the motion controllers has
issued a Runway fault
Diagnostics
CardioMD Service Manual 5-15