General Design Features; Environmental; Power Limiting; Ground Fault Detection - Siemens FC2005 Installation, Operation And Maintenance Manual

GENERAL DESIGN FEATURES

Environmental

The FC2005 panels and subassemblies are suitable for use in a dry, indoor or protected
location.

Power Limiting

The AC power connection, battery wiring and four system status relays are not power limited.
All other circuits leaving the control panel meet the requirements for power limited circuits
when installed in accordance with the National Electrical Code and local requirements.

Ground Fault Detection

The control panel provides system ground fault detection. Main board ground fault event is
annunciated as a trouble condition on the system. In addition, the addressable circuit and
serial interface circuit have their own ground detection circuitry and indicator.
System- NAC (+) Ground Fault Threshold <20 kΩ
System- NAC (-) Ground Fault Threshold <20 kΩ
System- Auxiliary Power (+) Ground Fault Threshold <5 kΩ
System- Auxiliary Power (-) Ground Fault Threshold <5 kΩ
System- City Tie (+) Ground Fault Threshold <5 kΩ
System- City Tie (-) Ground Fault Threshold <5 kΩ
SLC grounding detection threshold
SLC (+) – Ground <5 kΩ
SLC (-) – Ground <5 kΩ

NAC Operation

The notification appliance circuits are controlled by the system microprocessor in accordance
with the site-specific system configuration.
The notification appliance circuits can operate audible and visual notification appliances. Each
NAC can provide any of five software-generated codes or continuous operation to audible
notification appliances. Also, each NAC supports synchronization of visual notification
appliances.
Silence Inhibit - The control panel may be programmed to inhibit silence for up to four minutes
from the first alarm.
All of the NACs are power limited.

Security Features

Multi-level password protection of programming functions prevents unauthorized configuration
changes.
If PAD-5 is added to the system, the panel NAC and PAD-5 NAC will be
synchronized when the panel NAC is set as source and PAD-5 NAC is set as
follower.
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