Technical Specifications Module‑side multi‑pin cable interface, field‑side multi‑channel screw‑type signal terminals. No independent power supply. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%.
Functional Features Realizes signal transition via special connecting cable between control rack I/O module and external field terminals. Provides convenient screw‑type terminals for field equipment wiring. Separates rack body and field wiring, convenient for on‑site debugging and maintenance.
Application Scenarios Spare external wiring transition unit for ABB DCS system. Applied in occasions where field signal wiring needs to be separated from control rack.
Performance Parameters Low‑attenuation multi‑channel signal transmission performance. Reliable screw‑terminal connection characteristic.
Material Composition Flame‑retardant plastic housing. Multilayer signal printed circuit board. Multi‑pin cable connector and field‑side screw‑type wiring terminals. DIN‑rail fixing buckle.
Structural Characteristics Compact DIN‑rail installation structure. One side is multi‑pin special cable interface, the other side is field‑side screw wiring terminals. Rear side equipped with DIN‑rail buckle.
Working Principle Special connecting cable connects TBU850 and I/O module terminal base. Field signal cable connects to screw terminals of TBU850. Signal completes bidirectional transmission between field equipment and I/O module through internal circuit and connecting cable.
Installation Requirements Cut off system related signal power before replacement. Snap TBU850 onto standard DIN‑rail inside cabinet. Connect special connecting cable to module side and TBU850 side respectively. Connect field signal cable to screw terminals. Restore system power supply, check signal channel transmission condition.
Usage Notes Must use matched special connecting cable. Hot‑plug under powered condition is prohibited. Cable length shall comply with product specification limit.
There are no reviews yet.