DSC - Outputs
Page 27 of 80
when the backup NFU system is available. See drawing 5.4 DSC Backup
NFU Simplified Schematic.
See also: 1.3.6
Backup NFU System
Specifications
Signal Type:................................. Dry contact
Maximum Switching Capacity ...... 10 Amps
Connector: ...................................5.08mm pitch screw terminals
Installation
The Backup NFU status contact will be open whenever the backup NFU
system engaged and closed whenever the main control system is in use.
Commissioning
There are no specific commissioning procedures associated with this
connection.
1.4.6 General Alarm Contact
Description
The DSC contains a normally closed dry contact for connection to a
general alarm system. This dry contact will be closed when the DSC is
operating normally with no existing fault conditions. When a fault is
detected by the DSC, this dry contact will open. The contact will also
open if there is a failure in the power supply to the DSC.
Specifications
Signal Type:................................. Dry contact
Maximum Switching Capacity ...... 0.5 Amps
Connector: ...................................5.08mm pitch screw terminals
Installation
General alarm dry contact is closed when the DSC is operating normally
with no existing fault conditions.
Doc No.: MAN01504, 20-02-06 DSC 100 & MCP 100 Manual
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