Pilz has expanded its PNOZmulti range of controllers with the PNOZmulti Mini configurable safety relay.
Developed mainly for use in standalone machines, the 45 mm wide PNOZmulti Mini provides 20 safe inputs, four safe semiconductor outputs (in accordance with SIL 3, PL e) and four test pulse outputs.
In addition to monitoring safety functions such as emergency stop, safety gates or light beam devices, it can also perform machine control tasks due to its logic functions.
The display on the front panel shows information on all signal states, as well as error stack entries. Diagnostic messages reduce troubleshooting and increase availability, and the CRC checksum and creation date can be read by pressing the rotary knob.
The user program is stored on a chip card, so it can be transferred from one unit to another.
The PNOZmulti Mini is compatible with the PNOZmulti Configurator software.
The software includes configuration and function elements, and configuration of the elements is based on the required machine functions and the category that needs to be achieved. All inputs and outputs are free to select and can be linked using logic elements via drag and drop. Pre-defined, approved function blocks and menus are available.
As safety functions require in-depth specialist knowledge, particularly in their design and implementation, certified safety blocks for hardware and software can make it so much easier to get machinery approved.