ZIMO MX681 Instruction Manual Download Page 4 | Manualshive

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Page 4 Function-Decoders MX681, MX685, MX686, MX687, MX688

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Summary of Contents for MX681

Page 1: ...rs 15 3 16 SUSI Interface and Logic Level Output 15 3 17 Servo Configuration 15 4 Feedback Bidirectional communication 16 5 Operating with Märklin MOTOROLA Systems 17 6 ZIMO Decoder Software Update 17 NOTE ZIMO decoders contain an EEPROM which stores software that determines its characteristics and functions The software version can be read out form CV 7 and 65 The current version may not yet be c...

Page 2: ...rations MX681 MX681N MX681R MX681F 7 wires 120mm long for power pick up 4 function outputs Solder pads are available for further outputs MX681 with 6 pin plug as per NEM651 and NMRA RP 9 1 1 mounted to the circuit board Versions with 8 pin plug as per NEM652 on 70mm wires or 6 pin plug on 70mm wires special order only 20 x 11 x 3 5 mm 1 0 A 8 Fu Outputs 2 Servos SUSI MX685 Family Function Decoder ...

Page 3: ...he total current of all outputs Use the soft start op tion i e CV 125 52 to prevent cold start problems of light bulbs in rush current interpreted as a short circuit which leads to the output being turned off Software Update ZIMO decoders can be updated by the user provided that one of the following update devices is at hand ZIMO decoder update module MXULF since 2011 system cab MX31ZL or command ...

Page 4: ...Page 4 Function Decoders MX681 MX685 MX686 MX687 MX688 ...

Page 5: ...Programming in Operational Mode is not locked because any such programming only applies to the active loco address and reprogramming the wrong locomotive is therefore not possible Bit 7 1 Software updates via MXDECUP MX31ZL or other means are locked 112 Special ZIMO configuration bits 0 255 2 Bit 1 0 Normal acknowledgment in Service Mode by activating motor and headlight outputs 1 High frequency p...

Page 6: ...V indicates a possible sub version number of the main version noted in CV 7 The entire SW version number is thus composed of CV 7 and 65 i e 28 15 3 4 The first vehicle address Decoders are usually programmed at delivery to address 3 CV 1 3 for the DCC as well as the MM Märklin Motorola format All aspects of operation are possible with this address but it is recom mended to change to a different a...

Page 7: ... can for ex ample be turned ON OFF with a single loco function key See chapter Function mapping The virtual motor control follows the commands of the second address if one is defined value 0 CV Denomination Range Default Description 64 Short SECOND ADDRESS 1 127 0 The short 1 byte second address it is active when CV 112 Bit 5 0 67 68 Long SECOND ADDRESS 128 10239 0 The long second address it is ac...

Page 8: ...e loco decoder is sufficient CV Denomination Range Default Description 2 Vstart with 3 step curve 1 255 1 Internal speed step 1 255 applied as lowest external speed step speed step 1 applies to 14 28 or 128 speed step modes 1 lowest possible speed 5 Vhigh with 3 step curve 0 255 1 or 255 Internal speed step 1 255 applied as highest external speed step 14 25 or 128 depending on the speed step mode ...

Page 9: ...ymmetrical threshold for stopping with asymmetrical DCC signal Lenz ABC method 1 14 101 114 201 214 0 1 1 4 V 106 Hundreds digit Sensitivity adjustment changes the speed with which the asymmetry is being recognized 0 fast recognition but higher risk of errors i e unreliable stopping 1 normal recognition 0 5 sec pretty save results default 2 slow recognition 1 sec very reliable 29 124 112 Individua...

Page 10: ... with CVs 69 to 82 The commands of the first and the second address are read separately and stored according to the respective function mapping and the desired function output states After power on system boot up longer track power interruption etc the decoder is first waiting for a SECOND ADDRESS command provided the second address is not 0 and the outputs are set based on this secondary address ...

Page 11: ...ves which of course is also useful for locos of other countries The purpose of the Swiss mapping is to switch various states of the locomotive lighting with different function keys i e for situations like driving a single locomotive cars coupled on driver s cab 1 or at the driver s cab 2 push pull shunting etc Using this relatively complex method is of course only expedient if the vehicle is equip...

Page 12: ...ltage sup ply of the decoder see chapter Technical Information Such low voltage outputs are fully stabilized and the voltage will not fluctuate with changes in track voltage Alternatively or in addition to this the dimming effect is not limited to devices connected to full track power but also works with low voltage the PWM pulse width modulation voltage reduction is also available with CV 60 whic...

Page 13: ... function outputs need to be dimmed than CV 60 allows or if some function outputs require a different voltage and the uncoupler function is not needed on the same vehicle then CV 115 can be used for an alternative low voltage supply The respective function outputs must be defined as uncoupler output in the corresponding CVs 125 132 159 and 160 see Special effects for function outputs CV Denominati...

Page 14: ...ulse strobe direction 20 21 22 000110xx Rotary beacon direction 24 25 26 000111xx Gyralite direction 28 29 30 001000xx Ditch light type 1 right direction 32 33 34 001001xx Ditch light type 1 left direction 36 37 38 001010xx Ditch light type 2 right direction 40 41 42 001011xx Ditch light type 2 left direction 44 45 46 001100xx Uncoupler as defined in CV 115 48 49 50 automatic disengagement in CV 1...

Page 15: ...erican railroads The ditch lights will only be working if the applicable bits in CV 33 and 34 are on the definition in CV 125 128 in itself is not enough but a necessary addition Example If ditch lights are defined for F1 and F2 the bits 2 and 3 in CV 33 and 34 have to be set accordingly i e CV 33 13 00001101 CV 34 14 00001110 3 15 Configuration of Electric Uncouplers System KROIS and System ROCO ...

Page 16: ...111 Two key operation F11 F12 112 Two key operation F3 F6 113 Two key operation F4 F7 114 Two key operation F5 F8 Two key mode operates as defined with CV 161 Bit 2 Connecting servos to decoder consult the loco decoder loco manual 4 Feedback Bidirectional communication All ZIMO decoder types have been equipped with a type of feedback ever since DCC was formed which has always been a major differen...

Page 17: ... equipment All ZIMO decoders as of 2009 are able to send their own loco address from an insulated track sections with a so called broadcast method very fast although only for one loco in that section send CV content on demand along with some decoder data such as actual speed in km h load and decoder temperature RailCom in ZIMO Decoders is activated with CV 29 Bit 3 1 AND CV 28 3 These are usually ...

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