KFD2-SCD2-Ex1.LK SMART Current Driver
■1-channel isolated barrier
■24 V DC supply (Power Rail)
■Current output up to 650Ω load
■HART I/P and valve positioner
■Line fault detection (LFD)
■Accuracy 0.1 %
■Up to SIL 2 acc. to IEC 61508
●Function：
■This isolated barrier is used for intrinsic safety applications.
■The device drives SMART I/P converters, electrical valves, and positioners in hazardous areas.
■Digital signals are superimposed on the analog values at the field side or control side and are transferred bi-directionally.
■Current transferred across the DC/DC converter is repeated at terminals 1 and 2. Terminals 2 and 3 are used when no short circuit detection is required.
■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.
■If the HART communication resistance in the loop is too low, the internal resistance can be used.
■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.
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2019-12-10 |
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295086 |
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367 KB |
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