Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 56)

54
P/N 133487
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
54
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
7. Cascadeable EZ-SCREEN †
7.1 Overview of Cascading
EZ-SCREEN emitters and receivers are also available in
cascadeable models. These models can be used as stand-
alone light screens, or can be cascaded up to four systems; see
Figure 7-1. The cascaded sensor pairs can be any length, any
number of beams, or have different resolutions
(i.e., 14 mm and 30 mm), as long as each emitter matches
its own receiver.
NOTE: EZ-SCREEN SLS models (with Inverted Display) can
be used as the end sensor pair. EZ-SCREEN Grid/
Point systems and PICO-GUARD systems can not be
interfaced with the Cascade Input.
The control reliability, installation and alignment, electrical
interface to the guarded machine, initial checkout, periodic
checkout, troubleshooting and maintenance features of
cascadeable models are functionally identical to those of the
standard models.
Electrical connections are made through M12 (or Euro-style)
quick-disconnects. The emitter has an 8-pin connector for power
and ground. Optional 5-pin emitters with Remote Test function
are available; see note at right.
The receiver has an 8-pin connector for power, ground, reset,
EDM #1 and #2, and OSSD #1 and #2. All systems in a cascade
are activating the same set of OSSD outputs, which are the
OSSDs of the master receiver.
NOTE: In a cascaded system, all receivers are connected
together, and all emitters are connected together.
7.1.1 System Components and Specifications
A stand-alone cascadeable EZ-SCREEN system includes a
compatible emitter and receiver (equal length and resolution;
available separately or in pairs), a terminator plug for the
receiver and two single-ended (machine interface) cables.
A multiple-light screen cascaded EZ-SCREEN system includes
compatible emitter/receiver pairs (up to four), a terminator plug
for the last receiver in the cascade, two single-ended cables to
interface with the machine and provide power to the system, and
pairs of double-ended (sensor interface) cables to interconnect
the emitters and the receivers in the cascade.
The terminator plug must be used on the receiver in a stand-
alone system, and on the last receiver in a multiple-system
cascade or, a QDE2R4-8..D cable interfaced with an E-stop or
other hard contacts (see Sections 7.8 and 7.9).
Available single-ended, double-ended, and splitter cables are
listed in Section 2.3. Cable lengths are limited – for both the
power cables and the interconnect cables; see Section 7.4 for
more information.
Important Note about Remote Test in Cascaded Emitters
If a cascaded system requires the Remote Test function (see
Section 1.4.4), then all emitters in the cascade must be 5-pin
emitter models (model SLSCE..-..Q5); the interconnection
between these cascaded emitters can only be accomplished
using 5-pin DEE2R-5..D cables.
7.1.2 Receiver Display
In Run mode, the 7-segment display will show:
Clear condition
Latch Output operation “ L ”
Trip Output operation “ – ”
Blocked condition Number of blocked beams
CSSI Input OFF or open “ |– – –| ” Solid (not flashing)
(e.g., “upstream” receiver
is blocked or in lockout)
See Section 5.1.1 if any indication is flashing.
† U.S. Patent(s) issued or pending
Figure 7-1. Multiple cascaded light screens used to guard two
areas of one machine
Power press cross-section
Receivers only, shown
with EZA-MBK-21 “L”
mounting bracket