Banner EZ-SCREEN Low-Profile Safety Light Curtain Systems - Manual (Page 40)

38
P/N 133487
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
38
P/N 140044 rev. E
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN LP
Instruction Manual
Installation and Alignment
External Device Monitoring Hookup
If not connected previously, it is again strongly recommended
that one normally closed, forced-guided monitoring contact
of each FSD and MPCE be wired as shown in the monitoring
circuit (see Figures 3-24 and 3-26). Pins 2 and 3 of the receiver
connector provide connection for the external device monitoring
input. External device monitoring (EDM) must be wired in
one of three configurations described below and this wiring
configuration must agree with the receiver’s EDM DIP switch
settings (see Section 4.2).
One-Channel Monitoring: This is a series connection of closed
monitor contacts that are forced-guided (mechanically linked)
from each device controlled by the EZ-SCREEN LP. The monitor
contacts must be closed before the EZ-SCREEN LP can be
reset and the OSSDs can turn ON. After a reset is executed
and the safety outputs (OSSDs) turn ON, the status of the
monitor contacts are no longer monitored and may change state.
However, the monitor contacts must be closed within
250 milliseconds of the OSSD outputs going from ON to OFF.
See Figure 3-19.
Refer to Figure 3-26 for 1-channel EDM hookup. Connect the
monitor contacts between +24V dc and EDM1 (pin 3). Leave
EDM2 (pin 2) open (no connection), unless using the Auxiliary
Output feature (Section 3.5.5). Set the configuration DIP switch
to the 1-channel EDM position, per Section 4.2.
Two-Channel Monitoring: This is an independent connection
of closed monitor contacts that are forced-guided (mechanically
linked) from each device controlled by the EZ-SCREEN LP. The
monitor contacts must be closed before the EZ-SCREEN LP can
be reset and the OSSDs can turn ON. Regardless of the state of
the OSSDs, the monitor contacts may change state (either both
open, or both closed). If the monitor contacts remain in opposite
states for more than 250 milliseconds, a lockout will occur.
Refer to Figures 3-24 or 3-26 for 2-channel EDM hookup.
Connect the monitor contacts as shown between +24V dc and
EDM1 (pin 3) and between +24V dc and EDM2 (pin 2). Set the
configuration DIP switch to the 2-channel EDM position, per
Section 4.2.
No Monitoring: Use this configuration initially, in order to
perform the initial checkout; see Section 3.6. If the application
does not require the EDM function, it is the user’s responsibility
to ensure that this configuration does not create a hazardous
situation.
Refer to Figure 3-25 for “no monitoring” hookup. To configure
the EZ-SCREEN LP for no monitoring, connect or jumper EDM1
(pin 3) to EDM2 (pin 2) using the supplied wire-nut. Set the
configuration DIP switch to the 2-channel EDM position, per
Section 4.2.
An alternate method to configure no monitoring is to set the
configuration DIP switch to the 1-channel EDM position, per
Section 4.2, and connect EDM1 (pin 3) to +24V dc. This method
allows the use of the auxiliary output (see Section 3.5.5) in
applications that do not require the EDM function.
3.5.4 Remote Test Input
An emitter connection is provided (Test) for the connection of an
external remote test switch (typically a normally open contact
held closed). Opening this switch “turns OFF” the emitter,
simulating an interruption of the light beams; all OSSD outputs
will turn OFF. This input is used in conjunction with the emitter
Test/Reset DIP switch. See Sections 2.7.2, 4.2, and Figure 3-23.
3.5.5 Auxiliary (OSSD Follow/Fault) Output
EZ-SCREEN LP receivers have an auxiliary status output that
provides a PNP current-sourcing output (250 mA max.) that
mirrors the state of the OSSDs or indicates a lockout (ON =
Fault). The output is on pin 2 (orange/black wire) when the
EDM configuration DIP switch is set to the 1-channel monitoring
position, per Section 4.2. See the 1-channel EDM circuit on
Figure 3-26 for hookup information.
To use the auxiliary output in an application configured for no
monitoring, set the configuration DIP switch to the 1-channel
monitoring position, per Section 4.2, and connect EDM1 (pin 3)
to +24V dc (see Section 3.5.3).
The emitter also has a Fault output that can be enabled to
indicate the emitter lockout status (see Section 4.2 Fault).
3.6 Preparing for System Operation
After the initial trip test has been accomplished, and the OSSD
safety outputs and EDM connections have been made to the
machine to be controlled, the EZ-SCREEN LP is ready for testing
in combination with the guarded machine.
The operation of the EZ-SCREEN LP with the guarded machine
must be verified before the combined EZ-SCREEN LP and
machine may be put into service. To do this, a Qualified Person
must perform the Commissioning Checkout Procedure
described in Section 6.2.
3.7 Sensor “Swapability” and Emitter Hookup
Figure 3-22 illustrates a hookup option that provides sensor
interchangeability (or “swapability”) – the ability to install either
sensor at either QD connection. This allows the emitter and
receiver positions to be easily swapped, similar to a popular
feature of Banner MACHINE-GUARD ™ , MINI-SCREEN ® and
MICRO-SCREEN ® safety light screens, providing advantages
during installation, wiring, and troubleshooting.
To use this option, connect all emitter wires in parallel (color-
for-color) to the receiver cable via individual wires or the CSB..
splitter cordset.