Overview
Manuals
Core Application Contexts
Real-World Field Deployment Examples
Features:
- Acts as an active ground fault monitor targeting 5 VDC and 24 VDC industrial power supplies
- Draws a baseline normal current of ~10 mA which shifts up to 25 mA during active earth fault detection states
- Maintains a steady earth reference voltage benchmarked at +4.1 VDC to catch minor electrical shifts
The TELD-0001 is an Earth Fault Monitor in a terminal shaped housing. It is used to detect earth faults in all circuits and wiring that are galvanically connected in a power supply group. The TELD-0001 brings earth voltage to (approximately) +4Vdc as referenced to the 0Vdc of the monitored power supply group. The (0-20mA) current that is drawn by the TELD-0001 gives the control system an indication of the type of earth fault present. While no earth fault is present, the TELD-0001 will draw approximately 10mA. An earth fault current flowing through the earth connection of the TELD-0001 will change that depending on its value and polarity.
The control system can switch-off the power to the TELD-0001. This will isolate the internal TELD-0001 circuit from its earth pin. That removes the earth fault current that ran at the point in the field where the earth fault is located. The TELD-0001 needs to be connected with the RUSIO or RUSLS channel that is configured as the 'earth fault detection' channel. The module has a universal snap-in provision for standard DIN EN rails.
The FC-TELD-0001 Honeywell Earth Leakage Detector terminal module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell FC-TELD-0001 Earth Leakage Detector terminal module Manuals(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Safety Manager (SM) Infrastructure: It connects directly to the safety loop controlled by the Honeywell Safety Manager system.
General Purpose I/O Integration: It connects specifically to the RUSIO or RUSLS (General Purpose I/O) safety module.
Critical Shutdown Systems: It protects Safety Instrumented Systems (SIS), such as Emergency Stop (ESD) systems and Fire and Gas (F&G) systems.
Offshore oil and gas platforms: Monitors cable sheath wear caused by salt spray corrosion within junction boxes, detecting it before minor grounding faults lead to unexpected platform tripping.
Chemical plants: Monitors circuits exposed to harsh, corrosive environments. The system issues an alarm if chemical residues form a conductive bridge between field instruments and structural steel.
Refinery tank farms: Protects long-distance outdoor instrument lines. The system detects moisture seeping into outdoor field enclosures, preventing it from affecting circuit readings.
