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hübner/ESU #4070 decoder for Railbus VT98

and

Circuit diagram of Railbus VT98

The directions appears in this document is:

Both for VT98 and VS98

(Top View)

Pin assign of decoder.

  1. Rail R
  2. Rail L
  3. N.C.
  4. M (-)
  5. Speaker
  6. N.C.
  7. Lr (switched depends on direction of travel, from internal (rectifier) plus)
  8. M (+)
  9. All Light control
  10. Speaker
  11. All Light control
  12. Lf (switched depends on direction of travel, from internal (rectifier) plus)
  13. AUX1(switched for internal (rectifier) minus)
  14. Internal plus

Combination of 'direction arrow' on 6021 CU and output.

Direction

#8 MOTOR +

#4 MOTOR -

#12 Lf

#7 Lr

/\

Plus

Minus

ON

OFF

\/

Minus

Plus

OFF

ON

*Voltages are not measured in actual circuit. Logically analyzed.

 

Circuit diagram of Hübner's railbus VT98.

Please click on image to enlarge it.

 

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