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2
TIMER FUNCTIONS
Timer-to-Close (TTC): The TTC is an adjustable setting that can be set to automatically close the
door after a specified period of time (Figure 1).
Timer-to-Close (TTC) with Pre-Warning: The TTC is an adjustable setting that can be set to
automatically close the door after a specified period of time. Pre-Warning is a separate adjustable
setting that will activate an auxiliary device for a specified period of time before the door starts to
close (Figure 2).
INTRODUCTION
TTC
starts
FIGURE 1: TIMER-TO-CLOSE (TTC)
Door starts
to close
EXAMPLE: TTC set
to 45 seconds.
FIGURE 2: TIMER-TO-CLOSE (TTC)
WITH PRE-WARNING
EXAMPLE: TTC set
to 45 seconds and
Pre-Warning set
to 15 seconds.
TTC
starts
Pre-Warning starts
Stage 1
Stage 2
Door starts
to close
WARNINGS
To prevent possible SERIOUS INJURY or DEATH from
electrocution, disconnect electric power to operator BEFORE
installing.
ALL electrical connections MUST be made by a qualified
individual.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING WARNING
WARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIA ADVERTENCIA
To prevent possible PROPERTY DAMAGE, ACCIDENTAL
ENTRAPMENT, SEVERE INJURY, or DEATH:
• Disconnect power to the operator and fully open or close the
door BEFORE installing ANY entrapment protection devices.
• LiftMaster Monitored Entrapment Protection (LMEP) devices
MUST be installed for all wiring types except constant
pressure to close. However, LiftMaster Monitored Entrapment
Protection (LMEP) devices are recommended for constant
pressure to close.
• LiftMaster Monitored Entrapment Protection (LMEP) devices
MUST be installed when a radio is used.
• LiftMaster Commercial Door Operators require that ONLY
LiftMaster Monitored Entrapment Protection (LMEP) devices
be installed. Installing devices other than LiftMaster Monitored
Entrapment Protection (LMEP) devices will void the warranty.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING WARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIA ADVERTENCIA
APPLICATION
For use with Logic 4 Industrial Duty and Heavy Industrial Duty Operators.
When installed in a Logic 4 (L4) operator, the Timer Light Status Option Card (TLS1CARD) provides special functionality to control
auxiliary devices such as lights, bells, horns, horn/strobes, etc. at various door positions. The TLS1CARD also provides special timer
functions that are described in more detail on the following pages.
NOTE: Only one TLS1CARD can be used within the Logic 4 operator however it can be used in conjunction with other option cards such
as the AUXCARD, FDRCARD, or CPS3.
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