Multi-functional safety relay modules
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Multi-functional safety relay modules PROTECT SRB-E

PROTECT SRB-E User-friendly ■ p to 16 different applications U can be selected ■ onitoring of all conventional M safety switchgear ■ afety level of up to PL e / SIL 3 S can be achieved ■ imple adjustment using rotary switch S ■ elected application can be locked S using seal ■ uick response time (< 10 ms) Q to request ■ xcellent switching performance E and short cycle times ■ lot-in termination with coding S Compact ■ nstallation width for all device I variants 22.5 mm ■ p to 24 connecting terminals U ■ p to 10 safe inputs and 5 safe outputs U ■ p to 4

SRB-E modules Flexible ■ or 2 channel signal evaluation 1 ■ ontact configuration can be selected C for the sensors ■ tart / Reset functions with monitoring S ■ nput expanders for 4 sensors up to PL e I ■ ascading via safe inputs C ■ ombined evaluation for 2 safety guards C ■ wo-hand control monitoring T according to type IIIC ■ TOP Category 0 and 1 S ■ etects standstill using 1 or 2 impulse sensors D ■ dditional standstill signal as an option A ■ tandstill frequency 0.5 Hz … 10 Hz S ■ ail-safe delay timer F ■ ctuation delay time adjustabl

Safety relay modules SRB-E for a range of applications All versions of the family of safety relay modules PROTECT SRB-E can be used in applications up to Cat. 4 / PL e in accordance with ISO 13849-1 and up to SIL 3 in accordance with IEC 62061 / IEC 61508. A major advantage of the new SRB-E series is its multi-functionality which allows all the variants to be used with several existing SRB modules. Each module can be configured for up to 12 different applications via a simple control element. All conventional safety sensors and electromechanical safety equipment can be monitored. Adjustable...

Adjusting configuration and application The function is set using the rotary switch "mode". Adjustment of drop-out delay via rotary switch "time". Diagnostics / Status / Visualisation Signalling of status messages using LED displays LED RUN Function - Operating voltage OK - Ready for operation - Not a valid application - Input S12 closed - Time window for synchronicity exceeded - Second channel, input S22 has not opened - Input S22 closed - Time window for synchronicity exceeded - Second channel, input S22 has not opened - Safety outputs ON - No release signal on input X7 - Safety outputs...

New module with several functions combined into one module Two functions combined into one module With the new safe evaluation feature, the functions of "Safe standstill monitoring" and "Safe time relay" are comprised in one component in the basic version SRB-E-302FWS-TS. New module with three functions With the additional function "Safety guard monitoring", one device features three functions! This sets it apart from others in the market. Safety standstill monitoring, safe time monitoring and safety guard monitoring Safe standstill monitoring Monitors the impulses of the connected sensors....

Adjusting configuration and application The function is set using the rotary switch "mode". The cut-off frequency and actuation delay time setting is carried out using the rotary switch "f / t". Setting of the function "Time relay" Rotary switch "mode" Position Contact configuration Synchronism < 5 s Cross-wire monitoring Rotary switch "f / t" Timebase Time 1 Time 2 Time 3 Time 4 Time 1 Time 2 Time 3 Time 4 Time 1 Time 2 Time 3 Time 4

Connection option for all standard safety switchgear Safe semi-conductor outputs Cat. 4 / PL e The PROTECT SRB-E-201ST variant is characterised by p-switching fail-safe performance semiconductor outputs with switching capacity of up to 5.5 A. This variant is particularly suited to fail-safe applications with high switching capacity in conjunction with short cycle times, for example switching valve terminals or complete output modules. Short cycle times → up to 60 switching cycles / minute Cycle times Very quick request response times Very short response times for SRB-E modules of less than...

Sealing the transparent front panel cover Once the rotary switch has been used to set the configuration required and commissioning is complete, the transparent front panel cover can be secured using a conventional seal. Equipment label The equipment label allows individual project and device assignment without additional organisational tools. This allows quick assignment of the electrical equipment in the event of maintenance work or trouble-shooting. Standard label signs can be glued or snapped into the space provided on the front of the housing. Ordering example: Connection Electronic...

Applications and functions PROTECT SRB-E Standard Input signals Start conditions Start button / autostart Start button with edge detection Combination module for 2 protective devices ■ Standstill monitoring – Time monitoring – Safety guard monitoring SRB-E-302FWS-TS SRB-E-402FWS-TS Technical data Technical data Supply voltage Diagnostic and status display Number of safe inputs Switching capacity of the safety contacts of the safe semi-conductor outputs of the auxiliary contacts of the signalling outputs Max. switching cycles / minute Drop-out delay STOP 0 Dimensions (H x W x D) Cable...

Output contacts Safe STOP 0 Safe STOP 1 Operating voltage Type designation Material number Key Safety guard monitoring Magnetic safety sensors BNS Emergency stop monitoring Pull-wire emergency stop switch / position switch Input expander module for up to 4 sensors AOPD monitoring Two-hand control panels Safe standstill monitoring 1 2 3 Input signals: antivalent 2 Cross-wire detection Safety output contacts, STOP 0 Safety output contacts, STOP 1 Non-safe output contacts: Auxiliary contacts Non-safe output contacts: Semi-conductor

The Schmersal Group In the demanding field of machine safety, the owner-managed Schmersal Group is one of the international market leaders. The company, which was founded in 1945, has a workforce of about 2000 people and seven manufacturing sites on three continents along with its own companies and sales partners in more than 60 countries. Customers of the Schmersal Group include global players from the area of mechanical engineering and plant manufacturing as well as operators of machinery. They profit from the company‘s extensive expertise as a provider of systems and solutions for...