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Functional Safety KFD2-SR2-Ex*.W(.LB)
Product Description
2
Product Description
2.1
Validity
This manual is only valid for devices with a part number
greater than #203350
.
Contact your Fuchs representative for information about older devices.
2.2
Function
KFD2-SR2-Ex1.W
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from
the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load
in the non-explosion hazardous area. The output changes state when the input signal changes
state. The normal output state can be reversed using switch S1. Switch S3 is used to enable
or disable line fault detection of the field circuit.
During an error condition the outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.
KFD2-SR2-Ex2.W
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from
the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load
in the non-explosion hazardous area. The normal output state can be reversed using
switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field
circuit.
During an error condition the outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.
KFD2-SR2-Ex1.W.LB
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from
the hazardous area to the non-hazardous area.
The proximity sensor or switch controls a change-over relay contact for the load
in the non-explosion hazardous area. The normal output state can be reversed using
switch S1. Switch S2 allows output II to be switched between the signal output or the fault
indication output. Switch S3 is used to enable or disable line fault detection of the field circuit.
During an error condition the outputs de-energize.
A fault is signalized by LEDs and a separate collective error message output.
The device is mounted on a 35 mm DIN mounting rail according to EN 60715.
