PHOTO
Photoelectric emitter-receiver switch
A photoelectric emitter-receiver device uses an optical path to determine a switching output.
Schematic
IEC · RX
IEC photoelectric receiver: normally closed receiver 2 wire
Photoelectric receiver form: Normally Closed Receiver 2 wire.
In plain English
What does IEC photoelectric receiver: normally closed receiver 2 wire mean?
A photoelectric receiver evaluates light arriving from an associated emitter and provides the documented electrical response. This entry identifies the normally closed receiver 2 wire form in the publisher's IEC-context family.
A simple example
An object crossing a conveyor beam can change the receiver output. The receiver tag should identify its optical partner and the controller input receiving its signal. The normally-closed designation starts with a conducting output or closed contact in the documented reference condition; operation changes that state. The two-connection interface must be read with the load and supply arrangement. Leakage current and minimum load can matter where a powered device is connected in series with an input.
What the drawings help you do
Normally-open and normally-closed labels describe the documented electrical output form. They do not by themselves establish light-on or dark-on operation; confirm that setting with the device data.
This particular reference
Photoelectric receiver form: Normally Closed Receiver 2 wire. This entry adds the normally closed receiver 2 wire detail to the broader photoelectric receiver family. Normally-open and normally-closed labels describe the documented electrical output form. They do not by themselves establish light-on or dark-on operation; confirm that setting with the device data.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Terminal
- An identified point where a conductor connects.
- Signal
- Electrical information passed between devices, rather than necessarily the main power supply.
Read the source: Autodesk IEC-60617 Symbol Preview: Photoelectric Receiver Switches
IEC · Normally Closed Receiver 2 wire
Autodesk IEC-60617 Symbol Preview: Photoelectric Receiver Switches, HPE12PE2 / VPE12PE2. This identifies the publisher's library context; exact IEC graphics and database identities are not asserted.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · RX
What it represents
A photoelectric receiver evaluates light arriving from an associated emitter and provides the documented electrical response. This entry identifies the normally closed receiver 2 wire form in the publisher's IEC-context family.
An object crossing a conveyor beam can change the receiver output. The receiver tag should identify its optical partner and the controller input receiving its signal. The normally-closed designation starts with a conducting output or closed contact in the documented reference condition; operation changes that state. The two-connection interface must be read with the load and supply arrangement. Leakage current and minimum load can matter where a powered device is connected in series with an input.
Normally-open and normally-closed labels describe the documented electrical output form. They do not by themselves establish light-on or dark-on operation; confirm that setting with the device data.
How to read it
- The normally-closed designation starts with a conducting output or closed contact in the documented reference condition; operation changes that state.
- The two-connection interface must be read with the load and supply arrangement. Leakage current and minimum load can matter where a powered device is connected in series with an input.
- Normally-open and normally-closed labels describe the documented electrical output form. They do not by themselves establish light-on or dark-on operation; confirm that setting with the device data.
Information to show or reference
- Identify the target, sensing mode and expected normal condition.
- Label supply, output and connector pins from the actual device diagram.
- Reference output circuit type, operating range and controller input.
A distinction that matters
This entry adds the normally closed receiver 2 wire detail to the broader photoelectric receiver family. Normally-open and normally-closed labels describe the documented electrical output form. They do not by themselves establish light-on or dark-on operation; confirm that setting with the device data.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEC-60617 Symbol Preview: Photoelectric Receiver Switches
Public Photoelectric Receiver Switches table explicitly lists HPE12PE2 / VPE12PE2 with this operating or connection form. Vendor graphics are linked, not copied.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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