Honeywell FS-GIMTLDI-1624 Safety Type 16-Channel Digital Input FTA Field Terminal Board

Honeywell FS-GIMTLDI-1624 Safety Type 16-Channel Digital Input FTA Field Terminal Board
I. Basic Material Information
Model: FS-GIMTLDI-1624 (General equivalent model: FS-TSDI-1624, both have fully compatible hardware and can be directly interchanged)
Brand: Honeywell (Honeywell)
Product Type: Special FTA Field Wiring Terminal Adapter for SIS Safety Instrumentation System
Main Control Card Compatibility: FS-SDI-1624 / FC-SDI-1624 (16-channel safety digital input card)
System Compatibility: Safety Manager, Experion PKS, FSC Safety Control System
Safety Certification: SIL3, IEC61508, UL, CE, CSA, meeting the emergency stop safety specifications for high-risk processes
Installation Method: Standard DIN rail cabinet installation, protection level IP20

 Core Electrical Parameters
Channel Configuration: 16 isolated DC24V digital input channels
Supports dry contact and source-type 24VDC wiring methods
Conduction Threshold: ≥15VDC; Disconnection Threshold: ≤5VDC
Single-channel with PTC self-recovery overcurrent protection, single circuit short circuit will not burn out the entire terminal board and the main control card
Isolation Specifications: Optical isolation between channel groups, insulation withstand voltage 1500VAC, highly resistant to industrial electromagnetic interference
Power Supply: Powered by DC24V from the I/O card side, total power consumption ≤ 30mA Environmental parameters
Operating temperature: -40℃ ~ +70℃
Storage temperature: -40℃ ~ +85℃, without condensation and no corrosive gas environment
Interface structure
Inner side: 34-pin flat high-density connector, connected to SDI safety DI card through dedicated SICC flat cable
Outer side: Double-row screw terminal blocks, with on-site cables directly crimped for wiring

Model Code Interpretation
FS: Fail-Safe Fault-Safe SIS Safety Series
GIMT: General Isolation FTA Terminal Base
LDI: Digital Safety Input (Line Digital Input)
16: 16 signal channels
24: Rated working voltage DC24V

 Core Functions
Safety loop signal conversion
Collect valve position feedback, pump start/stop status, on-site emergency stop, pressure / level / temperature switches, flame detectors and other safety interlock switch signals, perform electrical isolation and upload to SIS controller.
Single-channel short-circuit hardware protection
Each channel is equipped with PTC current-limiting protection. In case of on-site line short-circuit, only this channel is protected and locked, without causing overall card or machine failure, maximizing the guarantee of the continuous operation of the safety system.
Loop break diagnosis support
Combined with FS-SDI-1624 safety card, it can realize open circuit and short circuit fault diagnosis, report line faults in advance to avoid failure of the safety loop.
Convenient cabinet operation and debugging
The terminals have unique numbers, support calibration of each circuit, online line inspection, and replacement of circuits does not require changing the wiring on the card side.

Typical Application Scenarios
ESD emergency shutdown system for petroleum refining, natural gas, and coal chemical plants
FSSS furnace safety monitoring and interlock system for thermal power plants, gas turbines, boilers
SIS safety system for pharmaceuticals, warehousing, offshore platforms, etc. high-risk process safety instruments
Pressure safety protection control system for long-distance pipelines, compressor stations