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MSI-i/R, MSI-ix/Rx
Configurable Safety Relays
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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.
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| Special features |
- Single or double-cycle operation with 30 s / 30 min time monitoring
- Light Curtain cycle control and constant rear area monitoring (MSI-ix/Rx)
- Additional E-STOP control device or Safety Switch can be connected (MSI-ix/Rx)
- Relay switching cycle counting for preventive maintenance (MSI-ix/Rx)
- Potential-free safety-related switching outputs
- Contact load rating, 5 A
- Plug-in connection terminals and output modules
- Interface for PC-supported diagnostics and easy start-up
- Housing width, 35 mm
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| Important technical data, overview |
Type in accordance with
IEC/EN 61496-1 (Annex A) |
Type 4 |
| SIL in accordance with IEC 61508 and SILCL in accordance with IEC/EN 62061 |
On request |
| Performance Level (PL) in accordance with EN ISO 13849-1 |
On request |
| Category in accordance with EN ISO 13849 |
Up to 4 (depending on the category of the upstream protective device) |
| Stop category in accordance with IEC/EN 60204-1 |
0 |
| Supply voltage |
24 V DC, ±20 % |
| Response time |
22 to 64 ms depending on safety sensor |
| Safety-related switching outputs (OSSDs) |
MSI-i/R: 2 relay outputs (NO)
MSI-ix/Rx: 3 relay outputs (2 NO, 1 NC) |
| Secondary switching device (SSD), only MSI-ix/Rx |
Relay output (NO) |
| Temperature range, operation |
0...+55 °C |
| Temperature range, storage |
-25...+70 ° C |
| Dimensions (W x H x D) |
35 mm x 99 mm x 113.6 mm |
| Functions |
MSI-i/R
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MSI-ix/Rx
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| Max. number of type 2 AOPDs or E-STOP control devices (category 2) |
2 |
4 |
| Max. number of type 4 AOPDs or E-STOP control devices (category 4) |
1 |
2 |
| Start/restart interlock (RES), optionally with/without |
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| Static contactor monitoring (EDM) |
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| Dynamic contactor monitoring (EDM) |
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| Cross circuit monitoring |
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| PC diagnostics interface |
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| Cycle control (single and double cycle) |
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| 30 s time monitoring for cycle operation |
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| Relay switching cycle counter for preventive maintenance |
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| System error signal output |
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| Secondary switching device (SSD) – output |
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