Description

The SNS 4074K features a bypass input, which allows safety-oriented bypassing of the monitoring function. In this case, the signal must fulfil at least the safety category of the selected monitoring function.

The SNS 4084K standstill monitor provides for the safe monitoring of the frequency of a signal at inputs I1 to I4 of the device. If the frequency of the impulses is high than the frequency set at the rotary switches then outputs Q1/Q2 will switch off. This monitoring function can be used to detect the standstill or a lower, safer rotational speed of a machine

Specifications

Safety rating: Up to SIL 3 Category 4 PL e

Protection rating: IP 40 for housing, IP 20 for terminals

Compliance

EN ISO 13849-1

EN 62061

Model Product Number Contacts Outputs Operating Voltage Adjustment Range Terminals
SNS 4074K-A R1.188.3640.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.5 – 99Hz Screw Terminals
SNS 4074K-C R1.188.3650.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.5 – 99Hz Push-in Terminals
SNS 4074K-A R1.188.3620.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.1 – 9.9Hz Screw Terminals
SNS 4074K-C R1.188.3630.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.1 – 9.9Hz Push-in Terminals
SNS 4084K-A R1.188.3480.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.5 – 99Hz Screw Terminals
SNS 4084K-C R1.188.3490.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.5 – 99Hz Push-in Terminals
SNS 4084K-A R1.188.3660.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.1 – 9.9Hz Screw Terminals
SNS 4084K-C R1.188.3670.0 4 Inputs 4 Safe OSSD outputs and 2 OSSD outputs 24 VDC 0.1 – 9.9Hz Push-in Terminals