Description
HONEYWELL TC-XXXXX1
Technical Specifications Screw terminal blocks for field wiring; Built-in surge suppression components; Signal channel isolation; Matched ribbon cable interface for I/O module connection; Panel mounting structure; Compatible with specified Series A I/O modules.
Functional Features Provide termination terminals for field instrument signal cables; Protect I/O module from surge and voltage spike transmitted from field cable; Transfer field analog or discrete signal to I/O module through internal cable; Simplify cabinet marshalling wiring; Detect wiring short circuit and overvoltage on field side; Support easy field wiring inspection and maintenance.
Application Scenarios Experion PKS DCS control cabinets in chemical, refinery and power plant; Field signal wiring termination for Series A I/O modules; Instrument marshalling cabinet signal distribution.
Performance Parameters Operating temperature range 0℃ to 60℃; Relative humidity 5% to 95%, non-condensing; Low signal attenuation; Surge withstand capability meets industrial control requirement.
Material Composition FR-4 printed circuit board; Brass tin-plated screw terminals; Surge absorption components; Insulating plastic terminal housing; Metal mounting bracket.
Structural Features Flat panel mounting structure; Multiple screw terminals arranged in rows on front side; Internal ribbon cable connector on back side; Mounting holes for cabinet installation; Model part number printed on housing surface.
Working Principle Field instrument cables connect to screw terminals of FTA assembly. Signal passes through surge protection and isolation circuit, then transmits to matched I/O module via ribbon cable. Surge components absorb transient voltage spike from field cable to prevent damage to I/O module. The terminal assembly keeps field wiring separated from sensitive I/O card circuit.
Installation Requirements Mount FTA assembly firmly on cabinet mounting rail or panel; Tighten all wiring terminals with specified torque; Connect ribbon cable correctly between FTA and I/O module; Single point grounding for shielded signal cables; Keep field cable separated from high-power power cable.
Precautions for Use Disconnect field power before wiring operation; Check terminal screw tightness periodically; Inspect surge protection components when repeated channel overvoltage alarms occur; Use matched ribbon cable specified for this FTA part numb
