Fiessler ESPE Type 4, Руководство по эксплуатации

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Start interlock
Subsequent to commissioning and/or a power interruption, the start interlock prevents a "re-release". A re-release is only possible
once the protective field has been interrupted and reactivated.
Response time
The time period between penetration of the protective field and the switching process.
EPSE Type 4
The ULVT... safety light barriers comprise photo-electric guards. These devices are characterized by the fact that when the
protective field generated by the transmitter and receiver is interrupted, a hazardous movement is interrupted or prevented.
One-cycle (two-cycle operating mode)
Subsequent to one (two) penetrations, the machine automatically performs an operating cycle and then waits for a maximum 30
seconds for one (two) penetrations.
If the time period exceeds 30 seconds, the restart interlock is activated.
Installation range
(Fig. 30/1)
The minimum and/or maximum permissible distance between the transmitter and
receiver. The permissible installation range is specified on the ULVT receiver.
Obstacle size
(Fig. 30/1)
The obstacle size indicates the minimum obstacle diameter that will definitely interrupt a
hazardous movement through the safety light barriers.
The following obstacle sizes are provided by the beam distances for the ULVT... safety
light barriers:
Muting
Temporary and safe bridging of the ULVT safety light barriers during a material
movement, e.g. into and out of a manufacturing cell, or in high-bay storage. Reliable
differentiation between man and material flow is ensured.
Overrrun
The section of hazardous movement which occurs after penetration of the protective field.
Overrrun traverse
(Fig. 30/2)
The path traversed during the run-on period (e.g. path of a ram, path of a point on a roller surface).
Overrrun period
Duration of the run-on period.
Protective field height
(Fig. 30/1)
Height of the protective field generated by the transmitter and receiver.
Safety mode
When the protective field is interrupted, the switching outputs are blocked, then
automatically released subsequent to re-release of the protective field.
Self-monitoring
The automatic response of the photo-electric guard in the event of an internal
malfunction.
Safe distance (Fig. 30/2)
The minimum distance S between safety light barrier and the nearest hazardous area, required in order to prevent injuries. In
order to establish the minimum safe distance, the formulas from standard EN 999, the machine-specific C standards and the
effective ZH guidelines are to be used.
Safety category 4
The ULVT safety light barriers belong to safety category 4 as per EN 945-1 and IEC 61496 / EN 61496.
Devices of safety category 4 comprise self-monitoring photo-electric guards and represent the highest safety class for photo-
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FIESSLER
E L E K T R O N I K
Min. / max. installation range 0,3m / 7 m 0,3m / 24 m
min. obstacle size 14 mm 30 mm
min./max. protective field height 100 mm / 1900 mm 100 mm / 1900 mm
S
Nachlaufweg
der Maschine
8 Terminology
protective field height
Installation range
Obstacle size
Fig. 30/2 Safe distance and overrun traverse
Fig. 30/1 Installation range, obstacle size,
protective field height
BA - ULVT
overrun
traverse