2TLC172287M0201 Rev B 6 www.abb.com/jokabsafety
2015-09-17
2 Overview
2.1 General description
The Orion1 Base light curtains are Active Opto-electronic Protective Devices (AOPDs) that are used to protect
working areas that, in presence of machines, robots, and automatic systems in general, can become hazardous for
operators that can get in touch, even accidentally, with moving parts.
The Orion1 Base light curtains are Type 4 intrinsic safety systems used as accident-prevention protection devices and
are manufactured in accordance with the international standards in force for safety, in particular:
Safety of machinery – Electro-sensitive protective equipment
– Part 1: General requirements and tests
Safety of machinery – Electro-sensitive protective equipment
– Part 2: Particular requirements for equipment using active opto-
electronic protective devices (AOPDs)
Safety of machinery – Safety-related parts of control systems
– Part 1: General principles for design
Functional safety of electrical/electronic/programmable electronic
safety-related systems
– Part 1: General requirements
Functional safety of electrical/electronic/programmable electronic
safety-related systems
– Part 2: Requirements for electrical/electronic/programmable
electronic safety-related systems
Functional safety of electrical/electronic/programmable electronic
safety-related systems
– Part 3: Software requirements
Functional safety of electrical/electronic/programmable electronic
safety-related systems
– Part 4: Definitions and abbreviations
Safety of machinery – Functional safety of safety-related electrical,
electronic and programmable electronic control systems
The device, consisting of one transmitter and one receiver housed inside strong aluminium profiles, generates infrared
beams and detects any opaque object interrupting a beam. The 2 units are composed by one or several transmitting
and receiving modules.
The transmitter and the receiver are equipped with the command and control functions. The receiver checks the
control operations and safety actions.
The synchronisation between the transmitter and the receiver takes place optically, i.e. no electrical connection
between the two units is required.
The microprocessors guarantee the check and the management of the beams that are sent and received and the
microprocessors inform the operator about the general conditions of the AOPD, including errors, via LEDs (see
paragraph 8 – “Diagnostic functions”).
The connections are made through a M12 connector located in the lower side of the profile.
During installation, a display facilitates the alignment of both units (see paragraph 6 – “Alignment procedure”).
As soon as an object, a limb or the operator’s body accidentally interrupts one or several of the infrared beams sent by
the transmitter, the OSSD outputs switch off and block the Machine Primary Control Element, MPCE (if correctly
connected to the OSSD outputs).