Banner EZ-SCREEN SLS, Инструкция по эксплуатации

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May 22, 2023
EZ-SCREEN SLS Safety Light Curtain Instruction Manual
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WARNING:
The hazard must be accessible only through the sensing field
Incorrect system installation could result in serious injury or death.
The installation of the EZ-SCREEN SLS must prevent any individual from reaching around, under,
over or through the defined area and into the hazard without being detected.
See OSHA CFR 1910.217, ANSI B11.19, and/or ISO 14119, ISO 14120 and ISO 13857 for infor-
mation on determining safety distances and safe opening sizes for your guarding device. Mechani-
cal barriers (for example, hard (fixed) guarding) or supplemental safeguarding might be required to
comply with these requirements.
The following general requirements and considerations apply to the installation of interlocked gates and guards for the pur-
pose of safeguarding. Refer to the relevant regulations to be sure to comply with all necessary requirements.
Hazards guarded by the interlocked guard must be prevented from operating until the guard is closed. A Stop command must
be issued to the guarded machine if the guard opens while the hazard is present. Closing the guard must not, by itself, initiate
hazardous motion; a separate procedure must be required to initiate the motion. The safety switches must not be used as a
mechanical or end-of-travel stop.
The guard must be located at an adequate distance from the danger zone (so the hazard has time to stop before the guard is
opened sufficiently to provide access to the hazard), and it must open either laterally or away from the hazard, not into the
safeguarded area. Depending on the application, an interlocked gate or door should not be able to close by itself and activate
the interlocking circuitry. In addition, the installation must prevent personnel from reaching over, under, around, or through the
guard to the hazard. Any openings in the guard must not allow access to the hazard (see ANSI B11.19 or the appropriate
standard). The guard must be strong enough and designed to protect personnel and contain hazards within the guarded
area, which may be ejected, dropped, or emitted by the machine.
The safety switches and actuators used with the cascaded system must be designed and installed so that they cannot be
easily defeated. They must be mounted securely, so that their physical position cannot shift, using reliable fasteners that re-
quire a tool to remove. Mounting slots in the housings are for initial adjustment only; final mounting holes must be used for
permanent location.
Two individually mounted safety interlock switches are recommended for each guard to meet safety category 4, per ISO
13849-1, and must satisfy several requirements. Each switch must provide at minimum, one normally closed (N/C) electrical-
ly isolated contact to interface with the Cascade input.
The contacts must be of positive-opening design, with one or more normally closed contacts rated for safety. Positive-open-
ing operation causes the switch to be forced open, without the use of springs, when the switch actuator is disengaged or
moved from its home position. Mount the switches to move/disengage the actuator from its home position and open the nor-
mally closed contact when the guard opens.
Interlock Guarding Requirements
8.8.1
Positive-Opening Interlocking Safety Switches
8.8.2
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