Unit Features; Function Description - Pilz PIT si1.2 Operating Manual

PIT si1.2

Unit features

} Muting lamp in accordance with EN 61496
}
2 semiconductor outputs for function monitoring
}
Scope of supply:
– Muting lamp including bulb
– Mounting bracket
– 2 screws

Function description

In muting mode, the operator must be made aware of the hazard that results from the sus-
pension of the safety function. The muting lamp is designed for this purpose. It illuminates
as soon as muting mode is started.
Two semiconductor outputs enable the function of the lamp to be monitored.
} Normal mode:
If the lamp is not operated, both outputs are low. If the lamp is operated and illuminated
(muting mode active), both outputs are high.
}
Error during operation
If an error occurs or the lamp is faulty, at least one of the two output signals changes to
low.
Recommendation: To increase the availability of the plant, you can use a second muting
lamp. If one of the muting lamps fails (e. g. faulty bulb), the second muting lamp takes over
its function.
Operating Manual PIT si1.2
21039-EN-05
| 6