Safety standards compliance requirements


The device is SIL 2 and SIL 1 certified in compliance with IEC 61508: 2010 (standard related to Functional Safety) and IEC 61557-15: 2014 (based on IEC 61508, specific for IT systems using IMDs and IFLs devices).

The classification of safety function:

Function SIL

RIW (Remote Insulation Warning)

Used with redundant actuators


RIW (Remote Insulation Warning) or REDC (Remote enabling / disabling command)

Used with single actuator


The following model and commercial references are certified:

Model Commercial Reference


The device and accessories (voltage adaptors) certification is valid if the installation and wiring of the system abides with the description explained.

Product Setup

To comply with the Functional Safety Standards requirements, the device must be configured using the following parameters, accessible by selecting Menu > Settings > I/O Config:

Parameter Description Value
Ins. Al. Relay Insulation alarm relay FS
Prev. Al. Rel Preventive insulation alarm relay Mirror
Inhibit. Input Injection inhibition input N.O or OFF
Ack Inhibit Acknowledgement of the inhibition signal ON
Ack. Al. Relay Allow triggering relays when acknowledging alarm OFF
Corr. Flt. Signal Allow 3s signal when insulation fault disappears OFF
Test w. Relays Toggle Relays during manual auto test OFF

For detailed information about these parameters, see I/O configuration.

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