PHOTO
Photoelectric emitter-receiver switch
A photoelectric emitter-receiver device uses an optical path to determine a switching output.
Schematic
IEC · TX
IEC combined photoelectric sensor: normally closed emitter-receiver - DC driven
Combined photoelectric sensor form: Normally Closed Emitter-Receiver - DC Driven.
In plain English
What does IEC combined photoelectric sensor: normally closed emitter-receiver - DC driven mean?
A combined photoelectric sensor contains an emitter and a receiver within the same documented sensing unit. This entry identifies the normally closed emitter-receiver - dc driven form in the publisher's IEC-context family.
A simple example
A reflective sensing arrangement can detect a passing object or a change in returned light and send the result to a control input. The normally-closed designation starts with a conducting output or closed contact in the documented reference condition; operation changes that state. This is the DC-supplied form. Preserve supply polarity and confirm the output circuit type from the device wiring diagram.
What the drawings help you do
The combined housing does not establish whether a reflector or the target returns the light. Sensing mode, light-on or dark-on selection and pin functions need the selected product diagram.
This particular reference
Combined photoelectric sensor form: Normally Closed Emitter-Receiver - DC Driven. This entry adds the normally closed emitter-receiver - dc driven detail to the broader combined photoelectric sensor family. The combined housing does not establish whether a reflector or the target returns the light. Sensing mode, light-on or dark-on selection and pin functions need the selected product diagram.
- DC
- Direct current: electricity flowing in one direction.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Signal
- Electrical information passed between devices, rather than necessarily the main power supply.
Read the source: AutoCAD Electrical: Photoelectric emitter/receiver switches
IEC · Normally Closed Emitter-Receiver - DC Driven
Autodesk IEC-60617 Symbol Preview: Photoelectric Emitter/Receiver Switches, HPE12B16 / VPE12B16. 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 · TX
What it represents
A combined photoelectric sensor contains an emitter and a receiver within the same documented sensing unit. This entry identifies the normally closed emitter-receiver - dc driven form in the publisher's IEC-context family.
A reflective sensing arrangement can detect a passing object or a change in returned light and send the result to a control input. The normally-closed designation starts with a conducting output or closed contact in the documented reference condition; operation changes that state. This is the DC-supplied form. Preserve supply polarity and confirm the output circuit type from the device wiring diagram.
The combined housing does not establish whether a reflector or the target returns the light. Sensing mode, light-on or dark-on selection and pin functions need the selected product diagram.
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.
- This is the DC-supplied form. Preserve supply polarity and confirm the output circuit type from the device wiring diagram.
- The combined housing does not establish whether a reflector or the target returns the light. Sensing mode, light-on or dark-on selection and pin functions need the selected product diagram.
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 emitter-receiver - dc driven detail to the broader combined photoelectric sensor family. The combined housing does not establish whether a reflector or the target returns the light. Sensing mode, light-on or dark-on selection and pin functions need the selected product diagram.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Photoelectric emitter/receiver switches
Public Photoelectric Emitter/Receiver Switches table explicitly lists HPE12B16 / VPE12B16 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.
Explore related references
Put the reference into a drawing workflow.
Elora Grid helps electrical teams work with drawings, specifications and equipment information. Explore the drafting workflow or join the early-access waitlist.