•
on page 42)
•
FSD interfacing (see
on page 42)
•
MPCE/EDM (see
Machine Primary Control Elements and EDM Input
•
on page 12)
•
Scan Code Select (see
on page 45)
WARNING:
•
Risk of electric shock
•
Use extreme caution to avoid electrical shock. Serious injury or death could result.
•
Always disconnect power from the safety system (for example, device, module, interfacing, etc.),
guarded machine, and/or the machine being controlled before making any connections or
replacing any component. Lockout/tagout procedures might be required. Refer to OSHA
29CFR1910.147, ANSI Z244-1, or the applicable standard for controlling hazardous energy.
•
Make no more connections to the device or system than are described in this manual. Electrical
installation and wiring must be made by a Qualified Person
4
and must comply with the applicable
electrical standards and wiring codes, such as the NEC (National Electrical Code), NFPA 79, or
IEC 60204-1, and all applicable local standards and codes.
6.4.1 OSSD Output Connections
Refer to the output specifications in the
on page 16 and these warnings before making OSSD output
connections and interfacing the EZ-SCREEN LS Basic to the machine.
WARNING:
•
Interfacing both output signal switching devices (OSSD)
•
Failure to follow these instructions could result in serious injury or death.
•
Unless the same degree of safety is maintained, never wire an intermediate device(s) (PLC, PES,
PC) between the safety module outputs and the master stop control element it switches such that
a failure causes a loss of the safety stop command or the failure allows the safety function to be
suspended, overridden, or defeated.
•
Connect both OSSD outputs to the machine control so that the machine’s safety-related control
system interrupts the circuit to the machine primary control element(s), resulting in a non-
hazardous condition.
WARNING:
•
OSSD Interfacing
•
Failure to properly interface the OSSD Outputs to the guarded machine could result in serious
injury or death.
•
To ensure proper operation, the Banner device output parameters and machine input parameters
must be considered when interfacing the Banner device OSSD outputs to machine inputs. Design
machine control circuitry so that all of the following are true:
The maximum load resistance value is not exceeded.
The maximum specified OSSD OFF-state voltage does not result in an ON condition.
6.4.2 FSD Interfacing Connections
Final switching devices (FSDs) take many forms. The most common are forced-guided devices, mechanically linked relays,
or interface modules. The mechanical linkage between the contacts allows the device to be monitored by the external device
monitoring (EDM) circuit for certain failures.
Depending on the application, the use of FSDs can facilitate controlling voltage and current that differs from the OSSD
outputs of the EZ-SCREEN LS Basic. FSDs can also be used to control an additional number of hazards by creating multiple
safety stop circuits.
4
A person who, by possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training and
experience, has successfully demonstrated the ability to solve problems relating to the subject matter and work.
EZ-SCREEN
®
LS Basic Safety Light Curtain
42
www.bannerengineering.com - Tel: + 1 888 373 6767
