Future Design Controls FDC-L91

  • Microprocessor Based Limit Controller
  • Latching Outputs
  • RS-485 Interface
  • Annunciator Output
  • Operations Friendly
  • Remote Reset
  • UL, FM, CE Approvals


Future Design Controls L Series High Limit Control FDC-L91 is a 1/16DIN control designed to provide limit protection in process applications. Up to three discreet setpoints, two outputs, fast scan rates and user friendly prompts make it the right choice for safety protection. The FDC-L91 offers a full range of universal inputs. Power supply selections of 90-264 VAC (std) or 11-26 VAC/VDC allows the FDC-L91 to be used virtually anywhere. Output selections include Relay, SSR Drive or Triac. Optional features such as a second latching relay, DC power supply, remote reset or communications offer maximum flexibility for demanding applications. The FDC-L91 display can be be configured for PV, HSP, LSP or Safe, offering the simplicity required by operations personnel.

Technical Documentation

Future Design Controls FDC-L91 Technical Documentation

Download this PDF for more information:

FDC-L91 User Manual