Light curtain C version

Light curtain C version

  • Safety light curtain for escalators
  • automatic release after emergency stop (EN 115)
  • TÜV-tested, up to 99 light barriers
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More safety on escalators: robust sensor, signalling and lighting technology – compliant with EN 115.

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Made in GermanyEN 115 compliantISO 9001 (TÜV NORD)made in Hildesheim
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The modules of this version are screwed onto cables of different lengths. This results in chains of 9, 10 or 11 transmitters and receivers, which are connected to each other by means of connection modules to form standby circuits with up to 99
light barriers. An inactive end module on the transmitter or receiver side forms the end in each case.

  • Original RUDOLPH design
  • For new installations, we recommend the e-version

The composition of complete standby circuits is shown in the table below.

Light barriers /
Stairs		 Cable sections Modules / Section Connection modules
Adapter + n + End
1. 2. 3. 4. 5. 6. 7.
36 4 9 9 9 9 A + 3 + E
37 4 9 9 9 10 A + 3 + E
38 4 9 9 10 10 A + 3 + E
39 4 9 10 10 10 A + 3 + E
40 4 10 10 10 10 A + 3 + E
41 4 10 10 10 11 A + 3 + E
42 4 10 10 11 11 A + 3 + E
43 4 10 11 11 11 A + 3 + E
44 4 11 11 11 11 A + 3 + E
45 5 9 9 9 9 9 A + 4 + E
46 5 9 9 9 9 10 A + 4 + E
47 5 9 9 9 10 10 A + 4 + E
48 5 9 9 10 10 10 A + 4 + E
49 5 9 10 10 10 10 A + 4 + E
50 5 10 10 10 10 10 A + 4 + E
51 5 10 10 10 10 11 A + 4 + E
52 5 10 10 10 11 11 A + 4 + E
53 5 10 10 11 11 11 A + 4 + E
54 5 10 11 11 11 11 A + 4 + E
55 5 11 11 11 11 11 A + 4 + E
56 6 9 9 9 9 10 10 A + 5 + E
57 6 9 9 9 10 10 10 A + 5 + E
58 6 9 9 10 10 10 10 A + 5 + E
59 6 9 10 10 10 10 10 A + 5 + E
60 6 10 10 10 10 10 10 A + 5 + E
61 6 10 10 10 10 10 11 A + 5 + E
62 6 10 10 10 10 11 11 A + 5 + E
63 6 10 10 10 11 11 11 A + 5 + E
64 6 10 10 11 11 11 11 A + 5 + E
65 6 10 10 11 11 11 11 A + 5 + E
66 6 11 11 11 11 11 11 A + 5 + E
67 7 9 9 9 10 10 10 10 A + 6 + E
68 7 9 9 10 10 10 10 10 A + 6 + E
69 7 9 10 10 10 10 10 10 A + 6 + E
70 7 10 10 10 10 10 10 10 A + 6 + E
71 7 10 10 10 10 10 10 11 A + 6 + E
72 7 10 10 10 10 10 11 11 A + 6 + E
73 7 10 10 10 10 11 11 11 A + 6 + E
74 7 10 10 10 11 11 11 11 A + 6 + E
75 7 10 10 11 11 11 11 11 A + 6 + E

Example
For a standby circuit with 58 photocells, 2 chains with 9
modules, 4 chains with 10 modules, 5 connection modules, an adapter cable and an end module for the transmitter and
receiver side are required according to the following table.
The distance between the modules in the base plate must be less than 30 cm, in the curved area only 20 cm!

Areas of application

Railway stations / platforms
Airports
Underground / metro
Shopping centres
Public buildings
Hotels
Office buildings
Trade fairs / congresses
Car parks

Field of use

Automatic restart systems (WBS) are used on escalators and moving walks in public and commercial passenger transport and automatically release the unit again after an emergency stop as soon as nobody is on it any more. The C version is designed for escalators made by Schindler and ThyssenKrupp (Original RUDOLPH design); for new installations we recommend the current E version.

Operating principle

The light curtain uses up to 99 light barriers to create a vertical safety light grid across the escalator. Each light barrier consists of a transmitter module and a receiver module; if a person interrupts a light beam, the TLCU central unit detects the occupancy and withholds the release. The system works independently of ambient light and is self-monitoring and self-configuring according to EN 115:2008 (Cat. 4 / SIL 3).

Installation

  1. Screw the transmitter and receiver modules onto the matching cables (9-module/10-module/11-module) – opposite each other on both sides of the escalator, one stainless steel holder per module.
  2. Connect the module chains via connection modules to form an automatic restart system with up to 99 light barriers.
  3. Fit one inactive end module at the end of each chain.
  4. Connect the transmitter and receiver chains to the TLCU22-04 central unit via the matching adapter cables.
  5. Switch on the system – the light curtain configures itself and shows its status on the central unit.

Maintenance & cleaning

  • Regularly inspect the modules and optical surfaces visually.
  • Clean dirty optics with a soft, lint-free cloth – no aggressive cleaning agents.
  • Check the status display of the central unit; faults are displayed and output.
  • No wearing parts – very low maintenance effort; defective modules can be replaced individually.

Tip for service work

With the external service display (art. no. 80-200231), the status of the central unit can be read conveniently directly at the escalator during service work – it can be positioned optimally via a 4 m cable that can be extended up to 20 m.

Important notes

  • Only use the version that matches the escalator type – C/E version for Schindler and ThyssenKrupp.
  • Align transmitter and receiver exactly opposite each other.
  • One stainless steel holder is required per module.
  • The TLCU22-04 central unit is required for evaluation.
  • Work on the system only by trained personnel and when de-energised.

Technical data

Parameter Value
Standard EN 115:2008
Safety level Cat. 4 / SIL 3 (EN 61508, EN 954-1)
Testing TÜV type-examined
Protection class IP67
Temperature range −20 … +65 °C
Design Original RUDOLPH
Light barriers max. 99 per escalator side (approx. 30 m)
Module connection Cables (9-module/10-module/11-module) + connection modules
End module inactive
Evaluation Central unit TLCU22-04

Additional information

Flyer
Operating instructions

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