Light Curtains
 
How it Works The Merlin light curtain is a solid-state electro-optical switch intended for use as a control device on production machine. Merlin produces and checks an invisible network of closely spaced, pulsed, infrared light beams between separate transmitter and receiver columns. As long as conditions are normal and all beams are received, the output relay contacts remain closed. If any beam is not found they open, thereby stopping the machine and protecting the operator.
Description The standard MERLIN consists of a control and a set of columns (one transmitter and one receiver) and a set of interconnecting cables. The MERLIN will also accept multiple sets of columns per control box to protect more than one side. Thus, the benefit of reducing the cost for an application like guarding straight-side presses, etc.
Features and Advantages
- Class 4 safety system
- User friendly controls and instructions
- Replaceable columns
- Storage of 3200 blanking patterns
- English language readouts
- Diagnostic message display
- Dual-checking captive contact safety relays and dual microprocessors
- Intelligent controller
- Available 0.5 inch beam spacing or 1 inch beam spacing
- Sizes ranging from 6 inches to 96 inches
- Numerous programmable features
- Modular construction
- Misaligned beams or obstruction indication
- Several blanking features
- Programmable beam blank out system with job storage memory.
- Up to 16 steps per job can be programmed for different beam blank out patterns to follow the shape of the part.
- Up to 243 jobs can be stored in nonvolatile memory.
- A learn mode allows for easy job creation.
- Blanking limits allow the user to set a window where blanking is allowed.
- A floating beam function allows for up to 3 beams on 1/2 “ units and 1 beam on 1” units to be blocked without a shutdown.
- Limits for the floating function allow the user to set a window where floating beams are allowed.
- A 40 character vacuum florescent display guides the user and provides English language messages.
- A 16 key membrane keypad is used for set up and control.
- A password system allows for the supervision of the blanking features.
- Beam indicator display that shows any blocked beams.
- Built in muting for the non-hazardous portion of the cycle.
- Built in trouble shooting aids.
- Built in strobe light immunity.
- Captive contact safety relays for machine control.
- Modular construction with thin optical columns.
| MERLIN units are designed to meet |
|
EN 50100 EC 61496 OSHA 1910.217 ANSI B11.19.1990 Most automotive standards |
| Certified to |
|
CSA 22.2 EC Electromagnetic Compatibility Directive | |