Introduction; Gantry - Philips CARDIOMD Service Manual

Introduction

3.1 Introduction

This section provides detailed information on the functionality of the CardioMD system.

3.2 Gantry

The CardioMD Gantry is based on a pillar design supporting the detectors. The gantry pillar has a
rotation gear on which the detectors are mounted. The pillar features vertical detector movement.
Together with a horizontal movement of the entire pillar and the ability to rotate the detector,
circular and non-circular orbits around a patient can be achieved.
Figure 3.1 gives an overview of the CardioMD gantry for Series III systems, Figure 3.2 illustrates
the same for Series I and II systems.
III
LED
Handset
FireWire
Ethernet
E-Stop
115 V
AC
Ethernet
EKG
115 V
AC
Figure 3.1 Gantry schematic block diagram, CardioMD Series III systems
On Series III CardioMD systems, the acquisition PC is connected to the gantry internally (power
III
supply, IEEE 1394 FireWire communication, LAN connection). The hand controller plugs into a
panel on the acquisition PC stand. A connector panel on the rear of the table console allows the
connection of:
•
An ECG gate (power supply output, R-wave input)
•
A local area network (RJ45 connector).
3-2 CardioMD Service Manual
E-Stop
Safety Board
Handset
E-Stop
inputs
LED
PC STAND
INTERFACE
115 V
AC
REAR PANEL
115 V
AC
To Ethernet
Ultimitate motion limit
switches
(X, Y, Rotate)
EKG
Firewire
Collision
24 V
Handset
AC PSU 55 V
180 V 55 V 24 V
Motor Motor Motor
Stop
To Detector
CANbus
Y Drive
I/O
180 V
Control
CHA Amplifier
Position
Control
CHB Amplifier
Position
55 V
X Drive
HSSI CANbus
Position
Position
CHB
Position
ENC
180 V
Control
I/O
CHA Amplifier
Position
In
I/O Control
Out
24 V
I/O
Table Drive
1MAN0158-H11 04-2005 CSIP Level 1
Absolute
Position
Encoder
Y-Position
Motor & Gear
X-Position
Motor & Gear
Absolute
Position
Encoder
Rotate Drive
Absolute
Position
Encoder
Rotate Position
Motor & Gear
Table
Motor
Mid-position
switch