General Information
PL e – SIL 3 safety speed monitoring interface
Both modules integrate:
- Guided-contact safety relay
- Selectable manual or Automatic restart
- EDM feedback input for external contactors monitoring
Enable inputs used, for instance, when monitoring the same axis, in different working phases, with more modules configured with different thresholds
Faults are signalled by LED Fault and a PNP system status output. PNP status output indicating overspeed or underspeed thresholds crossing
SV MR0 and SV MR0 U integrates:
- 2 inputs for PNP proximities switches
- 3 front panel selectors allow configuration of the speed threshold
Compliance
EN ISO 13849-1:2008
EN 61508-1:2010
EN 615008-2:2010
EN 61508-3:2010
EN 61508-4:2010
EN 62061:2005
| Model Number | Code | Description | Power Supply |
|---|---|---|---|
| SV MR0 | 1100078 | Safety speed monitoring relay for Overspeed and Zero speed control | 24VDC |
| SV MR0 U
|
1100088 | Safety speed monitoring relay for Underspeed control | 24VDC |
The SV MR0 Series
The SV MR0 Series is an advanced automation safety controller with integrated speed monitoring and safety relay features. Designed to enhance safety in industrial automation applications, this series provides robust speed monitoring capabilities and ensures reliable operation through its safety relay. With its two-channel pulse evaluation system, the SV MR0 Series offers accurate and precise speed monitoring, making it an essential component for maintaining safety in automated processes. This safety controller adheres to stringent safety standards and regulations, such as EN ISO 13849-1 Performance-Level “e” and EN 62061 SIL “3,” ensuring optimal safety levels in diverse industrial environments. Trust the SV MR0 Series for efficient automation, reliable safety control, and effective speed monitoring with its integrated safety relay.
How Does the SVMR0 Overspeed Switching Function Work ?
When the selected frequency Fo is reached, the de-energization of output relays takes place. Once the value falls below the preset hysteresis value (Foh), the relays are switched on again. The internal relays’ normally open (NO) contacts are connected in series and linked to the terminals. If both relays are energized simultaneously, the current paths are closed, allowing control over devices such as a power contactor.
How Does the SVMR0 U Underspeed Switching Function Work ?
When the underspeed event is triggered (activated by a 10-second timer), the output relays are energized. These relays stay on until the frequency value exceeds the selected values. The normally open (NO) contacts of the internal relays are connected in series and linked to the terminals.
