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Opto-electronic protective devices today frequently have electronic switching outputs and integrated additional functions such as contactor monitoring (EDM) and start/restart interlock. However the requirement for the protective device to transmit the switching signals, not electronically, but rather contact-based to the machine control system often exists.

With the new MSI-RM2 relay module the user is provided with a compact and at the same time cost-effective solution for connecting safety sensors. The relay module, only 17.5 mm wide, has two potential-free make contact circuits with a response time of only 10 ms and LED displays for the switching status.

As its switching behavior is monitored by the EDM function of the safety sensor, an additional electronic monitoring system in the relay module is not required. The MSI-RM2 is conform to the standard IEC 60204-1.

If you are looking for Leuze Safety Relays, please call us at (800) 894-0412 or Email us at info@ctiautomation.net we will do our best to help you find the Leuze Lumiflex MSI-RM2 that you are looking for at the most competitive prices possible. If you are searching for Leuze MSI-SR4 technical information (data-sheets) please use the Leuze Safety Relay Datasheets OR Product Selection Guide page links.

If Safety Switches or opto-electronic protective devices are used for guarding danger zones, as the standard link the MSI-SR4 Safety Relay establishes the connection to the machine control system. The relay acts as an E-STOP relay or protective door monitor in accordance with EN 954-1 up to category 4 and EN 60204-1, STOP-0.

The MSI-SR4 equipment includes the evaluation of input signals using relay or transistor outputs as well as three safety-related switching outputs and a signal output. A wide range of applications can therefore be covered. The short response time of only 10 ms is especially advantageous.

A very compact construction of the machines is therefore possible with hand and finger protection in particular. The MSI-SR4 is easy to connect because of the unambiguous assignment of the functions - this guarantees time-saving mounting.

With manually fed presses, after placing in the work piece the operator must press two hand-activated buttons outside the danger zone with both hands at almost the exact same time to start the next machine production step. This guarantees that both hands are outside the danger zone and the existing safety requirements are satisfied.

The MSI-2H Safety Relay is the link between these activation elements and the machine control system; it acts as two-hand relay in accordance with EN 574 type III C. The device checks the simultaneous activation of the buttons and ensures a controlled process start. The module is used everywhere that feeding-in is not automatic, but rather has to be performed manually by people.

These kinds of situations frequently arise in electronics production and in plate metal processing. The use as protective door monitors in accordance with EN 60204-1 Stop-0 is also possible.

When increased functionality is required in automated production processes, the configurable MSI-s and MSI-sx Safety Relays are preferred over simple Safety Relays.

These configurable MSI Safety Relays type 4, in accordance with IEC/EN 61496-1, can be flexibly connected as the link between opto-electronic protective devices and the machine control unit. In addition to standard functions such as start/restart interlock and contactor monitoring they also feature a type 2 test monitoring. The MSI-sx ("extended") model also enables the connection of E-STOP control devices or Safety Switches.

Furthermore switching cycles can also be counted and automatically signal when a pre-selected value is reached. Preventive maintenance is possible with this warning in good time before a device failure, which in turn provides additional reliability with regard to system availability.

With manual feeding-in at a machine it saves time if the safety sensor system gives a start command to the machine directly after the work piece has been fed in, i.e. without additional button actuation.

This semi-automatic process, which is frequently required with the use of presses, can be enabled with the cycle control function of the configurable MSI-I Safety Relay. The device, type 4 in accordance with IEC/EN 61496-1, acts as the link between the opto-electronic protective devices and the machine control system; it enables an efficient production with higher ergonomics - both in the single-cycle process (one protective field penetration/release) and in the double-cycle process.

The connection of an additional type 4 or type 2 protective device for the rear area monitoring is also possible. Compared with the MSI-i, the extended MSI-ix/Rx variant enables the connection of up to four opto-electronic protective devices and an E-STOP control device or a Safety Switch.

Integrated Muting functions enable continuous material flow, e.g. for automated production cells or packaging stations, while maintaining the protective function. The protective device assumes the control here of the Muting indicator and in the event of a fault in the Muting sequence guarantees the safe exit of the material to be conveyed out of the Muting line.

With the configurable MSI-m Safety Relays, highly productive Muting solutions are very easily implemented in combination with safety sensors. MSI-m is a configurable MSI Safety Relay type 4, in accordance with IEC/EN 61496-1, and as the link between the opto-electronic protective devices and the machine control system is equipped for numerous Muting function types: be it Sequential or Parallel Muting.

The MSI-mx version even enables Double Parallel Muting for entry and exit areas and the integration of several additional safety-related components, such as E-STOP control devices or protective door switches. This extremely compact combination can also further reduce the costs with the implementation of Muting processes.

The configurable MSI-mE or MSI-mxE Safety Relay type 4, in accordance with IEC/EN 61496-1, has an identical scope of functions to the MSI-m/R and MSI-mx/Rx Muting interfaces and meets the increased temperature requirements of UL 508.

• UL and CSA certified
• Sequential Muting or Parallel Muting with automatic mode detection
• MSI-mx for separate Muting of two AOPDs and connection of additional Safety Switch
• Standard initiators, Light Beam Devices or limit switch can be connected as Muting sensors
• 2 monitored Muting indicators, warning output with Muting indicator failure
• Potential-free safety-related switching outputs
• Plug-in connection terminals and output modules
• Interface for PC-supported diagnostics function for fast start-up
• Housing width, 53 mm

TNT 35 is a Test Monitoring Unit for the periodic testing of "testable" opto-electronic protective devices.

Both components, sensor and TNT 35, form an AOPD in accordance with IEC/EN 61496-1, -2. Up to 6 type 2 sensors can be connected to the TNT 35 via a series connection.

In addition to testable Leuze electronic type 2 Single Light Beam Safety Devices, type 2 Single Light Beam Safety Devices of the MLD 300 series can also be connected. The machine's functional sequence remains unimpaired by the periodic internal function tests.

Our Leuze MSI-2H distributors warehouse stocks some Leuze products enabling us to further assist you in finding the correct Leuze MSI-s/R, MSI-sx/Rx in the USA, Canada, or Mexico. It will be very helpful if you have the Leuze MSI-i/R, MSI-ix/Rx part numbers ready, then our sales representatives can provide you with a pricing and availability quote for Leuze MSI-m/R, MSI-mx/Rx that you are looking for in seconds. If you do not have the part numbers for Leuze Lumiflex MSI-mE/R, MSI-mxE/Rx, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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