The MicroGuard® safety light curtain utilizes the diverse redundancy design concept. This gives the safety light system a higher level of redundancy and control reliability. The two microprocessors are of different design, and the microprocessor or parallel programs are run and made up from different instruction sets written by different programmers.
The MicroGuard® safety light curtain self-checks every 20 milliseconds. Self-checking is the ability to electronically verify that all of the systems' critical internal circuit components and their redundant counterparts or back-ups are operating properly.
Extra
Safe Design
Provides tow methods of cross monitoring design. One utilizes two microprocessors
and two captive contact relays and the other uses four watchdog timers
monitoring the system and the captive contact relays.
External Diagnostic
Message Display
Standard on all MicroGuard® safety light curtains is the "External
Diagnostic Message Display"
Extensive
Testing
The MicroGuard® safety light curtain incorporates extensive testing
and burn-in to establish a high degree of product reliability and safety.
Redundant
Captive Contact Safety Relays
Redundant relays assure safety if an output relay should fail. The MicroGuard®
utilizes safety relays which have force-guided contacts. This is a configuration
where the contacts are mechanically locked together so that if one set
of contacts weld, the other contacts cannot change state. If one should
fail, code "Relay Fault" will be displayed on the diagnostic
message display. The complete guarding system consists of two miniature
pylons with a controller for system diagnostics and wiring interface.
Alphanumeric
Plain English Messages
Scrolling message display shows status and fault codes of the unit. This
is an excellent safety and maintenance feature which is unparalleled in
the machine guarding industry for enhancing machine utilization.
Control
Reliable System
Critical components of the MicroGuard® are duplicated so that a single
component failure will not cause an unsafe condition. If a component does
fail, the units' self-checking circuitry recognizes the situation and
initiates a safe stop of the machine. The fault is then displayed on the
message display.
Powerful Infrared
Light Source
The MicroGuard® safety light curtain utilizes powerful, safe, and
predictable infrared light as its sensing source. This gives the system
greater reliability and enhances machine utilization by minimizing nuisance
trips and shutdowns caused by dirt, coolants, lubrication mists and machine
oils. The MicroGuard® is highly immune to EMI, RFI, and ambient light
conditions and are unaffected by strobe lights and weld flash generated
light sources.
Standard
System Features
for Metal Box and DIN-rail Controllers
Pylons:
- Heavy duty aluminum extrusions NEMA IV (IP 65)
- Replaceable infrared lens cover (acrylic)
- Sealed bulkhead positive locking circular connectors
- Mounting brackets supplied standard
- Emitter Pylon - red/green/yellow status indicators
- Optional Polycarbonate tube which will encase the pylons for high impact protection. (Pictured at right)
Cables:
- Shielded PVC 22 AWG cables with quick disconnects and strain relief fittings
- Emitter cable - 20' (6.1m) supplied standard for the Metal Box Controller Module and 22' (6.7m) supplied standard for the DIN-rail Controller Module
- Receiver cable - 8' (2.44m) supplied standard for the Metal box Controller Module and 22' (6.7m) supplied standard for the DIN-rail Controller Module
- External Alphanumeric Diagnostic & Status Message Display
- Infrared Light Source: Solid state light emitting diodes
- Beam Spacing: 1/2" (13mm) or 1" (25mm)
- Minimum
Object Sensitivity:
1/2" (12.7mm) beam spacing is .55" (14mm)
1" (25.4mm) beam spacing is 1.18" (30mm) - Response Time: <30 milliseconds (all sizes)
- Scanning Frequency: 5.9 Khz
- Temperature Range: 32° to 120° F (0° to -51° C)
- Shock tested to withstand high vibration applications per UL991
- Self-Checking every 20 milliseconds
- Scanning Distance: All units are supplied standard with a 20' (6.1m) scanning capability. Extended range units are available, consult your representative or the factory. Scanning distances must be specified 50' (15.24m) maximum.
- Complete Guarding System Supplied: Transmitter and receiver pylons, controller, mounting brackets, connectors and cables, installation and operation manual.
- CSA Approved, UL Listed, and CE Certified
- Two-Year Warranty
- Patented #5, 243, 183
- Category 4 Safety Device per EN954
- DeviceNet™ Fieldbus Network Compatible (optional)
For detailed technical information on the MicroGuard® Safety Light Curtain and other Pinnacle Systems safety products download Installation Manuals.
To speak to a sales representative in the United States, please call (800) 569-7697.
Request a catalog
or price quote online or send an e-mail.
All products are manufactured to meet or exceed all applicable OSHA and ANSI standards and are made in the U.S.A.
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our PDF
MicroGuard® Brochure
