Banner EZ-SCREEN Low-Profile Safety Light Curtain Systems - Manual (Page 6)

4
P/N 133487
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
4
P/N 140044 rev. E
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN LP
Instruction Manual
Overview
1.4.6 Reduced Resolution (Floating Blanking)
Reduced Resolution increases the minimum diameter of an
object that the light screen can reliably detect anywhere within
its defined area. Reduced Resolution is generally used to allow
one or more objects (usually workpiece materials) to move
anywhere through the defined area, without tripping the OSSD
safety outputs.
Enabling two-beam Reduced Resolution reduces the overall
minimum object sensitivity, which allows multiple objects to
move through the defined area (see Section 3.4.2). The effect is
that any two consecutive beams (except for the sync beam) can
be blocked, without causing the OSSDs to turn OFF. This is also
called “Multiple-Point Floating Blanking.”
Resolution directly affects the minimum allowable distance
between the defined area of a light screen and the nearest
Figure 1-2. Reduced Resolution
hazard point (separation distance, see Section 3.1.1). The
receiver’s Green status indicator flashes when Reduced
Resolution is enabled. The ignored object size and resultant
Reduced Resolution are listed in Section 3.4.2.
1.4.7 Status Indicators
Status indicators on both the emitter and receiver are clearly
visible on each sensor’s front panel.
• Emitter:
Bi-color red/green Status indicator – shows whether power is
applied, and whether the emitter is in RUN mode, TEST mode,
or Lockout condition.
1-Digit Diagnostic Display – indicates specific error or
configuration conditions.
• Receiver:
Bi-color red/green Zone indicators – show status of a group of
beams:
- aligned and clear (green ON), or
- blocked and/or misaligned (red ON), or
- fixed blanked area (flashing green).
Yellow Reset indicator – shows System status:
- RUN mode (ON) or
- waiting for a reset (flashing).
Bi-color red/green Status indicator – shows System status:
- Reduced Resolution enabled (flashing green),
- outputs are ON or OFF (green ON or red ON), or
- the System is in Lockout condition (flashing red).
1-Digit Diagnostic Display – indicates specific error,
configuration conditions, or total number of blocked beams.
See Sections 4.4 and 5.1 for more information about specific
indicator and Diagnostic Display code meanings.
Figure 1-3. EZ-SCREEN LP emitter and receiver status indicators
Beams of
Defined Area
Workpiece
Press Break
Die
Emitter Receiver
7-Segment
Diagnostic Display
Zone Indicators
(each shows status of approx.
1/8 of the total beams)
Zone 1 Indicator
(indicates beam synchronization status)
Yellow Reset Indicator
Status Indicator (Red/Green)
7-Segment
Diagnostic Display
Status Indicator (Red/Green)