Application at HT Robotics: Pilz Access Permission System PITreader S

Mobile solution to authentication – Clear user groups for mobile workstation

September 13, 2023

Access Permission System PITreader S: Application at HT Robotics

HT Robotics designed a mobile workstation for efficient loading and unloading of CNC machines. It is moved within the plant for use on various machine tools, depending on the production requirement. The island consists of a station with a removable carriage for loading and unloading blanks, a collaborative robot and control console. In addition to safeguarding the mobile workstation, HT Robotics were also looking for an option to regulate access for three different operators (maintenance engineer, supervisor, operator). This task is performed by the modular access permission system PITreader S.

Modularity provides a mobile safety solution

Regulating access to the mobile workstation from HT Robotics guarantees that only authorised operators can control the mobile workstation. As a result, with the access permission system PITreader S, critical situations due to misuse are avoided. For example, the maintenance engineer can make manual interventions, the supervisor can create codes and production sequences and the operator can start or stop the production cycle.

What’s more, flexible area monitoring was implemented around the mobile workstation with the safety laser scanner PSENscan: should an operator approach, PSENscan identifies this and forwards the information, so that the speed of the cobot is adjusted. Once the workspace is free again, the cobot returns to full speed. These functions are controlled using the modular safety relay myPNOZ, as this evaluation unit is quick and simple to use. In this way, HT Robotics offers its customers a flexible workstation that includes a holistic safety concept – and thus guarantees productivity when loading CNC machines.

Access Permission System PITreader S: Application at HT Robotics

Benefits at a glance

  • All components in the safety solution support the workstation’s flexible concept.
  • Fewer downtimes, as only trained personnel have access to the system.
  • The PITreader S communicates with various systems via OPC UA

Customer statement

This application enables the machine to be operated via a central interface. In doing so the system is completely flexible: with PITreader, the machine can change operation from the manipulator to final processing, through to quality control. That’s three tasks in one solution.

Paolo Bertello, Project Manager at HT Robotics

About HT Robotics

Access Permission System PITreader S: Application at HT Robotics

HT Robotics is a company belonging to the Protech Group, with more than 25 years’ experience in the various fields of industrial automation, industrial process control and the creation of automatic systems with the help of collaborative robots. Its offer ranges from technical advice for feasibility studies and the development of innovative projects, to the design and development of automation and robotics applications, through to process simulations and rapid component prototyping.

Pilz’s products in the application

Modular safety relay myPNOZ

Easy-to-use, modular safety relay with an internal combination logic for monitoring emergency stop, safety light curtains, or two-hand controls IIIA/C for example, in small to medium applications with 2 to 16 safe input functions.

Sensor technology

The optimum solution for your application: safety switches for monitoring of positions and guards, optical sensors such as light curtains or camera systems for monitoring of areas and zones.

More Information


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