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Safe motion monitoring using the small control systems PNOZmulti 2

Safe monitoring of your drives

Small control systems PNOZmulti 2

The safe motion monitoring modules for the configurable control systems PNOZmulti 2 ensure safe monitoring of your drives. The extension modules, together with a base unit PNOZ m B0 or PNOZ m B1, monitor one or two axes. The safe motion monitoring modules for PNOZmulti 2 are easily configured using the software tool PNOZmulti Configurator. The tool can also be used to configure an independent module program (mIQ), which is then executed directly on the Motion Monitoring module. This brings significant benefits to you as the user: fine-granular configuration of several monitoring areas - such as velocity or rotational speed - is possible, which are then locally executed on the expansion module. That means greater flexibility for you as the user. Convenient diagnostic facilities and a wide variety of fieldbus and communication options are also provided.

All standard incremental encoders can be connected using drive-specific connection cables via an industrial interface, characterised by particularly high durability.

Benefits to you

  • Implementation of safety functions in accordance with EN 61800-5-2 (for adjustable speed electrical power drive systems)
  • Maximum flexibility due to the new module program technology (mIQ): Can be configured with the usual simplicity in the PNOZmulti Configurator
  • Fast reaction times: lightens the load on the base unit
  • Maximum safety: simple configuration of the functions via certified software blocks in the PNOZmulti Configurator
  • High availability: Comprehensive motion monitoring functions
  • Productive plants and machinery: with PNOZmulti you have reduced costs with maximum safety
  • Connection to all common incremental encoders via industry-compatible interface Mini I/O
Benefits to you

Characteristics of a safe motion monitoring module

Characteristics of a safe motion monitoring module
  • For connection to a base unit (PNOZ m B1 or PNOZ m B0) of the configurable control system PNOZmulti 2
  • Can be configured in the PNOZmulti Configurator
  • Monitoring of 1 axis (PNOZ m EF 1MM) or of 2 independent axes (PNOZ m EF 2MM)
  • Measuring value acquisition by proximity switch and encoder
  • Monitoring functions:

– Safe speed monitoring (SSM)

– Safe speed range monitoring (SSR-M)

– Safe direction of motion monitoring (SDI-M)

– Safe operating stop monitoring (SOS-M)

– Safe stop 1 monitoring (SS1-M)

– Safe stop 2 monitoring (SS2-M)

– Analogue voltage (track S)

Safe monitoring functions with PNOZmulti 2

SS1 – Safe stop 1

With the "safe stop 1" function, the drive is brought to a controlled stop, after which the power supply to the motor is safely interrupted. Once at a standstill, the drive cannot generate any hazardous movements.

SS1 – Safe stop 1

SS2 - Safe stop 2

With the "safe stop 2" function, the drive is brought to a controlled stop and then the "safe operating stop" is initiated. In a "safe operating stop", the drive's control functions are maintained in full

SS2 - Safe stop 2

SSR - Safe speed range

The maximum speed must not exceed a certain value, and the minimum speed must not drop below a certain value. If either of these limits is violated, the drive is shut down.

SSR - Safe speed range

SSM – Safe speed monitor

SSM – Safe speed monitor supplies a safe output signal to indicate whether the motor speed is below a defined limit value.

SSM – Safe speed monitor

SDI – Safe direction

A drive can only move in one (defined) direction. If the specified direction is violated, the drive is shut down safely.

SDI – Safe direction

SOS - Safe operating stop

The SOS - Safe operating stop - monitors the stop position reached by the axis and prevents any deviation from the position window. The drive's control functions are maintained in full. If the position strays outside of the monitored window, the drive is shut down safely.


With various blocks in the software tool PNOZmulti Configurator, the safety functions can be quickly and easily implemented

SOS - Safe operating stop

Pilz Automation Safety L.P.
7150 Commerce Boulevard Canton
Michigan 48187

Telephone: +1 734 354-0272
E-Mail: info@pilzusa.com

Technical Support

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E-Mail: support@pilzusa.com