General Information
6
TMC 66
Leuze electronic
DEUTSCH
E
NGLISH
FRANÇAIS
IT
A
LIANO
ESPAÑOL
N
EDERLANDS
Muting
The intentional bypassing of the safety function, e.g. during material transport into the
hazardous area.
Muting sensors
Muting sensors differentiate between persons and transported material. If the muting
sensors are activated simultaneously or in the intended order, the safety function of the
AOPD is bypassed. Material can be brought into the hazardous area without taking the
machine out of operation.
Contactor monitoring
The contactor monitoring checks before every release of the switching outputs if the
succeeding contactors are open. Only then, a new release is possible.
Restart interlock
An equipment which disables the automatic restart of the machine after the sensor part has
reacted during a dangerous part of the machine cycle, a change of the operating mode,
and/or operator mode of the machine.
1.4
Selection of Active Opto-electronic Protective Devices
The following strategy is to be applied (iterative process):
1. Determination of the protected area
2. Determination of the protective function
•
Finger or hand protection
•
Access protection for persons
•
Presence detection
3. Determination of the control category
4. Calculation of the safety distance
Determination of the protected area
Through risk calculation, the following has to be observed:
•
the size of the protective field
•
the access points
•
the hazardous areas
•
Bypassing possibilities