SCANNER SAFETY AND LOCAL CONTROLS
6510020335
65
Table. 14.
Radiation Shutter Status Indicator Summary
Radiation Light Status
System Status
Red
Green
Off
Off
Not a normal operating condition, assume shutter(s) may be open
Troubleshoot green light circuit to ensure no shutters are open
Occurs when there is no power to the scanner or heads
On
Off
Any of the nuclear or X-ray shutters have been commanded to open, and at least
one shutter has opened to interrupt the green light circuit.
Off
On
The green light indicates that all sensor shutters are closed and the green light
circuit is complete, for example, continuity through all green light indicators and
sensor shutter microswitches.
On
On
One or more sensors have been commanded to open a shutter, but they cannot.
Therefore, the hardwired Green light circuit is continuous, and the Red-light
indicator is ON to indicate a sensor desired state, for example, shutter open.
The green light indicates physical state of shutter and circuit integrity.
The red radiation lights are driven by software and network commands to open a radiation
shutter. The red light indicates the control system intent for shutter state.
In certain scenarios, it may be that the physical state of a shutter and the control system
intended state are in conflict and show both red and green indicators at the same time.
This may happen, for instance, when air pressure is not available to activate an air-
powered shutter, the shutter microswitch will stay closed maintaining the green light on,
but the red light will also be lit indicating that the software is commanding the shutter to
open.
If both red and green lights are off, confirm that no shutters are open before assuming
that the system is safe to work on.
Содержание Experion MX
Страница 1: ...Experion MX RELEASE 702 1 Operators Guide 6510020335 Rev 02 May 2019 ...
Страница 7: ...6510020335 7 8 NOTICES 168 ...
Страница 20: ...SCANNER SAFETY AND LOCAL CONTROLS 6510020335 20 Fig 15 Cable End Voltage Zones ...
Страница 21: ...SCANNER SAFETY AND LOCAL CONTROLS 6510020335 21 Fig 16 Distant End Voltage Zones ...
Страница 124: ...PROCESS INFORMATION DISPLAYS 6510020335 124 Fig 105 Profile Display ...
Страница 159: ...PROCESS INFORMATION DISPLAYS 6510020335 159 Fig 148 Precision Platform 4000 01 Scanner ...
Страница 160: ...PROCESS INFORMATION DISPLAYS 6510020335 160 Fig 149 Precision Platform 4000 20 21 Scanner ...