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Multiprotocol-decoder 76 500
Digital Operation on Layouts using either DCC- or Motorola-Format for Locos with DC-Motors.
Properties 76 500
• Compensating multiprotocol-decoder for DCC or Motorola data format
• Suited for permanent-magnet and can motors of up to 1 amp current consumption
• Quiet running due to 18,75 KHz chopper
• 14, 27, 28, 128 speed steps, dependent of data format used
• Short (1-127) und extended (128-9999) addressing modes
• NMRA compatible
• Settable minimal, intermediate, and maximal speeds
• Customizing speed table for 14 and 28 speed steps
• Programming on the main (DCC only)
• Switching speed (half maximum) activated by F3 function
• Acceleration/Deceleration activated by F4 function
• Direction-dependent, dimmable headlights activated by F0 function
• 2 dimmable ancillary outputs activated by F1 and F2 functions
• Braking invoked by DCC braking signal (e.g. Power 3) or sections fed by DC
• Protected against overheating
• All outputs are short-circuit protected
• Conventional DC or AC operation with automatic changeover to digital or analog mode possible
• All CVs may be programmed by DCC- or Motorola-compatible control units
• All DCC programming modes (register, CV, or direct) accessible
• Flash-memory controller can be updated any time
Description
The 76 500 is a powerful, small-outline, multi-protocol-decoder. It can be used in DCC- or Motorola-
systems as well as in analog DC-mode or AC-operation using the overvoltage pulse for reversal
(Märklin-System).
The decoder employs a chopper frequency of 18,75 KHz and is therefore not only suited for all
standard DC-motors, but also for instrument motors such as Faulhaber, Maxon or Escap, drawing
up to 1 amp continuous current. Surges of short duration are also tolerated.
The speed characteristics are either set by the minimal, intermediate, and maximal speed CVs
or by the individual speed step CVs.
The load compensation parameters can be trimmed to match the individual loco's properties.
The decoder features two direction-dependent headlight outputs, and two additional ancillary
outputs controlled by F1 und F2.
The function keys F3 und F4 may activate switching mode with an extended slow-speed range,
and acceleration/deceleration. All tasks of output switching and calling up of functions may be
freely assigned to any function key (Function Mapping).
The decoder can be programmed by Intellibox, or any DCC or Märklin/Motorola control unit. All
CVs can be accessed.
By default, the decoder recognizes DC, AC, or digital operation and adjusts itself automatically.
The operation mode can be manually selected, too.
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Related Manuals for Uhlenbrock Elektronik 76 500
Summary of Contents for Uhlenbrock Elektronik 76 500
- Page 1 • Flash-memory controller can be updated any time Description The 76 500 is a powerful, small-outline, multi-protocol-decoder. It can be used in DCC- or Motorola- systems as well as in analog DC-mode or AC-operation using the overvoltage pulse for reversal (Märklin-System).
- Page 2 Fitting of the loco-decoder 76 520 Connection of the unit Remove the shorting plug from the loco socket and insert the decoder plug into the loco socket. Should the headlights be lit in the wrong direction, the plug must be turned by 180°. Important: If both the driving direction as well as the lights are “wrong”...
- Page 3 Programming by DCC Central Unit Employ the programming menue of your unit to program the CVs in the mode it specifies. It is also possible to program on the main. Use the exact procedure as specified in the operating manual. Programming of extended addresses without menue Should your central unit not support extended address programming, you have to calculate the values of CV17 and 18 yourself.
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Page 4: Technical Data
In case of an eventual failure please return the defective item to us for repair. Please include purchase proof and a short description of defect, as well as stating the decoder’s address setting. Uhlenbrock Elektronik GmbH Mercatorstr.6 Hotline D-46244 Bottrop... - Page 5 Table of the CVs (Configuarion Variables) Description Range Default Address DCC 1-127 Mot 1-80 Minimal speed 1-63 Acceleration 1-63 The value per increment is 5 ms for a speed change of 1 For an internal speed setting of 200 (CV 5=50 or CV 94=200) the acceleration will be 1 second Deceleration (same factor as CV 3) 1-63...
- Page 6 Description Range Default Dimming of outputs A1, A2 and headlight 0-63 Analog operation 1 = AC only 2 = DC only 3 = AC/DC with automatic recognition Speed at end of deceleration 0-255 Valid if CV 49 Bit 2=1 and Bit 7=1 Sampling rate for compensation (CV 49, Bit 0=1) Rate = value * 53 us 0-255 Should the loco run erratically, it can be adjusted to values between 60...
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