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Appendix: Emergency Mode
Emergency mode with the Lighting
Automation System
Overview
Electrical and construction codes typically require that
certain circuits of lights be dedicated as emergency
circuits in a commercial, occupied building. One
method to accomplish this is to use battery powered
fluorescent ballasts that turn lamps on when normal
power is lost. This is discussed in Lutron Application
Note #50.
Other methods utilize a feature of the lighting
zone controller. When the connection between the link
common (LINK COM) and emergency (EMERG)
terminals is opened, the lights on that lighting zone
controller will be locked at a user-settable emergency
light level. A normally closed dry contact closure from
another system can apply this emergency mode to a
single lighting zone controller or lighting zone controller
panel, a specific link of lighting zone controllers or
lighting zone controller panels, or the entire system,
depending on where the contact closure is placed.
Setting the Emergency Light Level
The emergency light level is configured in the Digital
microWATT or eLumen software. It can be set from low
end to 100% of maximum light. A high light level is
typically used to provide necessary egress for the
building occupants. Follow the instructions in the
corresponding Software Reference Guide to set this
level.
Requirements
• A UL 1008 listed automatic emergency transfer switch
(provided by others) ahead/upstream from any lighting
zone controllers or lighting zone controller panels
designated for emergency.
• An emergency power supply.
• A dry, normally closed, contact closure from a building
automation system, or security or fire alarm system.
See the GRAFIK Systems Centralized Lighting Control
System Installation and Maintenance Guide for
information on using the emergency mode of lighting
zone controllers with the override mode of GRAFIK
power panels.
30
Installation Guide for Lighting Zone Controllers
This page applies to:
Small
Std.
Panel
Panel
LZC1
R
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