TST
Assembly instructions
LGB
FEIG ELECTRONIC GmbH
Page 7 of 26
TST_LGB_Assembly_instructions_rev5_EN.docx
1
General description and intended use
The door-line light curtain TST LGB described below, is a protection device for power operated doors and
gates in the EN 12978 purposes, or a non-contact safety device (BWS Typ 2) in accordance with
EN 61496-2.
ATTENTION
When utilized in accordance with the assembly instructions, the TST LGB may be used as exclusive
safety device (protection level E) as indicated by EN 12453 on doors and gates with automatic opera-
tion and operation by not-instructed persons.
These assembly instructions describe the sole use of the TST LGB as exclusive protection device (protection
level E) on the door in the system with a door controllers of FEIG ELECTRONIC GmbH.
When applied in accordance with the intended use, the TST LGB monitors the range below the door`s edge
of motor-operated, industrial or commercial doors and thus protects persons and objects against the door
starting.
Motor
Position encoder
TST
LGBE
TST LGBS
Door
controller
Door
Figure 1: Light curtain in door system
The TST LGB transmission and receiving unit form a light curtain lattice system, as the TST LGB
sends IR impulses, which are received and assessed by the TST LGB receiver.
TST LGB transmitter and receiver are installed in opposite sides of the door frame.
An interface also connects the TST LGB receiver to the door controller and a position detector.
The interface of the door controller configures the parameters, diagnoses and tests the TST LGB.
On basis of position data returned by a position detector mounted onto the door
’s shaft, the TST LGB can
determine the position of the door`s edge.
With the aid of this information, the door movement is extremely safe, precise and protected from being ma-
nipulated.
