Safety standards compliance requirements
Introduction
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 |
SIL 2 |
|
RIW (Remote Insulation Warning) or REDC (Remote enabling / disabling command) Used with single actuator |
SIL 1 |
The following model and commercial references are certified:
| Model | Commercial Reference |
|---|---|
| IM400N | IMDIM400N |
| IM400THRN | IMDIM400THRN |
Scope
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 :
| 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.