MSA 9010 SIL, Operating Manual

Page: 22 / 76

21
Installation
GB
Model 9010/9020 SIL
Contact MSA for any technical questions. For local MSA contacts go to our website
www.MSAsafety.com.
Supply
Configuration Jumper
Position
Function
Using internal power
supply only
CV18: 1-2
The control unit and connected detectors are supplied from the
main power supply only.
This configuration is used if back up power supply is not
required.
Set Access Code 2: P4 as de-activated (nA)
Set Access Code 2: P5 as activated (A)
Using external 24 VDC
output from internal power
supply
CV18: 1-2
The control unit, connected detectors and possible auxiliary
devices are supplied from the main power supply only.
This configuration is used if back up power supply is not
required.
Set Access Code 2: P4 as activated (A)
Set Access Code 2: P5 as activated (A)
Using external 24 VDC
power supply only
CV18: 2-3
The control unit and connected detectors and possible auxiliary
use an external power supply only.
This configuration is used if back up power supply is not
required.
Set Access Code 2: P4 as activated (A)
Set Access Code 2: P5 as de-activated (nA)
Using internal power
supply with external
24 VDC backup
CV18: 2-3
The control unit and connected detectors use an internal power
supply. If main supply goes off, the control unit will switch over
to external 24 VDC back up automatically
The configuration is used if back up power supply is required
Set Access Code 2: P4 as activated (A)
Set Access Code 2: P5 as activated (A)
Contacts are shown in non-energized state in the two connection diagrams.