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> Bbc boveri brown logic card gh r 421 0001 R1 062 037 65
Bbc boveri brown logic card gh r 421 0001 R1 062 037 65
GH R 421 0001 R1 Store (set / reset) Gate This replaces the older GH R 421 0000 V0 card
Made by BBC Brown Boveri. It was sold under the Sigma-Tronic B system for Industrial controls.
With a 3 month RTB (Return To Base) Warranty.
The store 421 card consists of a statically operating bistable trigger stage and series connected logical functions.
basically this is a set reset memory function, i.e.
(1 or 2) & (3 or 4) sets output, No5 & 6 & 7 Resets output
Tech Data: Current consumption: Reset store = 6mA Set store = 18mA
The operating voltage for the sigma-Tronic system is 24v d.c. (with a tolerance of 30% i.e. 16.8v to 31.2v a ripple up to a peak amplitude of 4v is permissible)
GH R421 GHR421 GH-R-421 GH-R 421 GH R-421 GHR 421 and 062 037 65
These modules are also ideal for small DIY logic projects (such as model railway control or hydraulic control) as they do not require a programmer or software. Also the logic circuit can be added to as required.
