Pilz PNOZ s30 safety relay

Part of the PNOZsigma safety relays range, the PNOZ s30 safety relay monitors safe standstill, speed and direction of rotation enabling safe working practices with the safety gate open, reduced set-up times and rapid access to the machine once standstill is initiated.

Application of the speed monitor meets the Machinery Directive’s requirement for safe speed monitoring and is suitable for all common motor feedback systems and proximity switches.

It is easy to operate via a rotary knob. With the monochrome display, time is saved during commissioning and when units are exchanged as there is no need for separate software. The display shows the set limit values and parameters as well as the current speed.

If a set warning threshold is reached, the speed monitor sends advance warning to the motor control system, avoiding unnecessary shutdown processes or hard shutdowns.

Parameters for standstill, speed and direction of rotation can be set and axis-position monitoring can also be selected for standstill detection. The absolute position of the axis is safely monitored, protecting against unwanted axis movements in set-up mode, for example. The parameters for an application are stored on the corresponding chip card and can easily be transferred from one unit to another without the need for a software tool. The parameter data is password protected and is safe from manipulation or unintended changes.