7 System Operation
7.1 Security Protocol
Certain procedures for installing, maintaining, and operating the EZ-SCREEN LS must be performed by either Designated
Persons or Qualified Persons.
A Designated Person is identified and designated in writing, by the employer, as being appropriately trained and qualified to
perform system resets and the specified checkout procedures on the EZ-SCREEN LS. The Designated Person is
empowered to:
• Perform manual resets and hold possession of the reset key
• Perform the Daily Checkout Procedure
A Qualified Person, by possession of a recognized degree or certificate of professional training, or by extensive knowledge,
training, and experience, has successfully demonstrated the ability to solve problems relating to the installation of the EZ-
SCREEN LS System and its integration with the guarded machine. In addition to everything for which the Designated
Person is empowered, the Qualified Person is empowered to:
• Install the EZ-SCREEN LS System
• Perform all checkout procedures
• Make changes to the internal configuration settings
• Reset the System following a Lockout condition
7.2 Status Indicators
7.2.1 Emitter
A single bi-color Red/Green Status indicator shows whether power is applied, and whether the emitter is in a Run mode or a
Lockout. A Diagnostic Display indicates a specific error code when the emitter is in Lockout; the display also momentarily
indicates the scan code setting at power-up or when changed.
Table 13: Emitter Status Indicator Operation
Operating Status
Status Indicator
7-Segment Diagnostic Display
Power-up
Red Single Flash
Scan code flashes 3 times - sequentially
or
Run Mode
Green
Lockout
Flashing Red
7.2.2 Receiver
A single bi-color red/green Status indicator shows when the OSSD outputs are On (green) or Off (red), blanking is enabled
(flashing green), or the System is in Lockout status (flashing red). An amber status indicator shows when the system is in
Run mode. The Diagnostic Display indicates the receiver’s trip (–) configuration and displays a specific error code when the
receiver is in Lockout. The Diagnostic Display also momentarily indicates the scan code setting at power-up or when
changed.
Along the length of the exit window are located bi-color red/green Alignment indicators that show whether a section of the
defined area (± 35 mm of indicator) is aligned and clear, blocked and/or misaligned, or has been fixed blanked.
Receiver Status Indicator Operation - Trip Output
Operating Mode
Run Mode
Indicator
Status Indicator
Alignment
Indicators9
7-Segment Diagnostic Display
OSSD Outputs
Power-up
Off
Single-Flash Red
All Single-Flash Red
Scan code flashes 3 times - sequentially
or
Off
9 If beam 1 is blocked, Alignment indicators will be Off, because beam 1 provides the synchronization signal for all the beams.
EZ-SCREEN
®
LS Safety Light Screen
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59