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Functional Safety KCD2-SCD-Ex1.ES(.SP), HiC2031ES
Product Description
2
Product Description
2.1
Function
KCD2-SCD-Ex1.ES(.SP)
This isolated barrier is used for intrinsic safety applications.
The device repeats the input signal from a control system to drive HART I/P converters,
electrical valves, and positioners located in a hazardous area.
Digital signals are superimposed on the analog values at the field side or control side
and are transferred bi-directionally.
The current is transferred via a DC/DC converter and repeated at the output terminals.
An open or short field circuit presents a high impedance to the control side to allow alarm
conditions to be monitored by the control system.
Test sockets for the connection of HART communicators are integrated into the terminals
of the device.
A fault is signalized by LEDs and a separate collective error message output.
SP Version
The devices are available with screw terminals or spring terminals. The type code
of the versions of the devices with spring terminals has the extension ".SP".
HiC2031ES
This isolated barrier is used for intrinsic safety applications.
The device repeats the input signal from a control system to drive HART I/P converters,
electrical valves, and positioners located in a hazardous area.
Digital signals are superimposed on the analog values at the field side or control side
and are transferred bi-directionally.
An open or short field circuit presents a high impedance to the control side to allow alarm
conditions to be monitored by the control system.
Line fault detection of the field circuit is indicated by a red LED and an output on the fault bus.
This device mounts on a HiC termination board.
2.2
Interfaces
The device has the following interfaces.
•
Safety relevant interfaces: input, output
•
Non-safety relevant interfaces: collective error message or fault bus output
The HART communication is not relevant for functional safety.
Note
For corresponding connections see datasheet.
