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SECTION 15
Glossary
Automatic Start
Upon completion of power-up, the ESPE will enter the
MACHINE RUN state as soon as the detection zone is
clear of opaque objects of the specified size.
Detection Zone
The IR light sensing area of the ESPE. When a specified
test piece enters this area then the ESPE must detect its
presence and set its safety outputs to the OFF-state.
Electro-Sensitive
Protective Equipment
(ESPE)
An assembly of devices and/or components working
together for protective tripping or presence sensing pur-
poses and comprising as a minimum:
• a sensing device
• controlling/monitoring devices
• output signal switching devices
LOCKOUT condition
When the ESPE detects a fault, it transitions to this state.
The OSSD will be held to the OFF-state and the ESPE
will not attempt to leave this state without performing a
comprehensive power up self-test. A power-up self test
will be initiated by either cycling the ESPE power or by a
Start signal transition.
MACHINE RUN
When the ESPE is in this state, the two OSSD are both
active. In this state the Green GUARD LED is on, the red
BREAK LED is off and the Yellow INTERLOCK LED is off.
MACHINE STOP
When the ESPE is in this state, the two OSSD are both
inactive. In this state the Green GUARD LED is off, the
Red BREAK LED is on.
OFF-STATE
The state in which the output circuit is interrupted and
does not permit the flow of current.
ON-STATE
The state in which the output circuit is completed and per-
mits the flow of current.
Output Signal Switching
Device (OSSD)
The safety output of the ESPE that is used to enable and
disable the guarded machine.
Response Time
The maximum amount of time required for the ESPE to
set its OSSD outputs to the OFF-state once the detection
zone is blocked by an opaque object of the specified size.
Start/Restart INTER-
LOCK
The ESPE will go into the INTERLOCK state upon com-
pletion of power-up and during zone violations which
causes a transition to the BREAK state. A Start signal
transition must occur before returning to MACHINE RUN
following any transition to MACHINE STOP.
F06E-EN-03A+F3S-TGR-CL_K+OperManual.book Seite 60 Dienstag, 4. Oktober 2011 1:32 13