Motion relays for safe standstill and speed monitoring
Wieland motion relays monitor standstill, speed or rotational movement so that hazardous machine motion can be evaluated without a programmable safety controller. Depending on the device, monitoring can be sensorless or use initiators or HTL encoder signals. Select by monitored motion function, sensor interface, speed or frequency range, safety outputs, switching capacity, start and reset behaviour, terminal technology and required safety level.
MOTION RELAYS
Motion relays comprise two types of motion monitoring devices, namely standstill monitors and speed monitors. Neither incremental encoders nor proximity sensors are required to measure the operating status with standstill monitors. Safe monitoring of the machine or system with speed monitors is carried out together with incremental encoders or proximity sensors.
SENSORLESS
STANDSTILL MONITORS
SVM 4001K - MOTION RELAYS
SVM 4001K-A
The device has screw terminals
SVM 4001K-C
The device has push-in terminals
SPEED MONITORS
WITH SENSORS
SNS 4074K / 4084K - MOTION RELAYS
SNS 4074K
The device has a bypass input with which the safety-related bypassing of the monitoring function is possible, e.g. when a safe position is reached. In this case, the signal must correspond to at least the safety category of the selected monitoring function.
SNS 4084K
The device has an input for start-up bridging with which the safe outputs can be switched off while a machine is at a standstill. This can be used, for example, to activate a spring-loaded guard locking of a safety device when the machine starts up.
CAREFREE TO CE MARKING -
WITH THE WIELAND SAFETY EXPERTS
Safety has been our daily business – for more than 30 years. On the way to CE marking and safe operation, we are your reliable partner and contribute our experience to your project. Whether training or consulting: We put together your individual all-round carefree package for thestandard-compliant implementation of your machines. We support manufacturers and operators either in specific sub-steps such as inspection and overrun measurement, risk assessment of machines or validation of safety functions according to EN ISO 13849-2, or we accompany them holistically through the CE process up to CE conformity assessment according to machine directives.
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