System Power Emergency Off - Etx; Introduction - Brainlab ExacTrac Planning Manual

System Power Emergency OFF - ETX

8.3 System Power Emergency OFF - ETX
8.3.1

Introduction

A system power emergency OFF can additionally be installed, if local authorities request
ExacTrac to completely shut the system down during an "emergency OFF". In this case, the
ExacTrac system will immediately power down whenever an emergency button is pushed.
It is mandatory to install one of the two emergency STOP options listed above in addition
to the system power emergency OFF circuit.
The system power emergency OFF ensures that in the case of an emergency OFF not only
motion and X-ray related risks are stopped, but also that the system is completely separated from
the mains voltage.
The entire power supply of the ExacTrac System (computer cabinet (1.0) and X-ray generator
cabinet (2.0a)) shall be connected to the emergency OFF circuit. In this way, the ExacTrac
system will be immediately powered down whenever an emergency button is pushed.
You or your contractor will be responsible for designing and providing the system power
emergency OFF circuit and buttons.
The following image shows an example circuit for system power emergency OFF interlock:
ExacTrac Cabinet
84
1-phase - mains power supply rails - 3-phase
X-Ray Generator
Cabinet 1 (master)
Building Installation
Emergency off circuit
X-Ray Generator
Cabinet 2 (slave)
Figure 38
Site Planning Manual Rev. 1.0 ExacTrac Ver. 6.x