Discussion:
ASSISTANCE ON STILL FM20 SUPPLIED TO KOMATSU AS FB20RJX-1

STILL FM20 (KOMATSU FB20RJX-1)
SERIAL NO :611877000952
PART REPLACED : PART NO => 8409436
Need someone's assistance to fix a problem of above truck. We imported the PCB (p/n8409436 ) and installed onto the truck but the truck does not work and the errors messages FE 17 followed by FE42 displays and blinks. However, customer has an identical truck. We replaced the new PCB to it and the truck worked confirming that the PCB supplied by us is NOT defective. However with this truck (the truck that is working) error FE55 comes and goes but all the functions work
Do we require the Service Software to make any setting to bring the truck (the one which is not working) to working order ? desperately looking for help !
E Mail : dhammika(underscore)umpl(at)stmail(dot)lk
  • Posted 17 Mar 2014 22:49
  • By Dhammi1
  • joined 28 Jul'11 - 68 messages
  • Sri Lanka
Showing items 1 - 4 of 4 results.
Hello,

connecting a Zapi handset is not possible.
the bottom part of the controller is Zapi, based on standard zapi controllers, but the top part (LAS) is specific for Still and is only accessible with the STEDS software...

't zou anders te simpel zijn ;)

regards Fritz
  • Posted 21 Mar 2014 06:46
  • By Fritz
  • joined 29 Nov'05 - 5 messages
  • West-Vlaanderen, Belgium
hey nacsand, I was just wondering is it possible to connect a Zapi handset to that controller and make all settings or is the Still software needed to make any kind of settings. if so is there a possibility to buy that?
Kind regards
Marc b
  • Posted 19 Mar 2014 20:53
  • By marc_b
  • joined 1 Jul'05 - 345 messages
  • ANTWERP, Belgium
Dear nacsand
Thank you very much for the detailed description. We will check the truck as per your instructions and come back to you on the outcome. Do you have an idea from where I could get service software of this truck ?
  • Posted 18 Mar 2014 16:50
  • By Dhammi1
  • joined 28 Jul'11 - 68 messages
  • Sri Lanka
FE17, This onitoring feature is activated immediately after
the vehicle is switched on.
The voltage at the field (1) of the drive motor should
be about half the voltage (UBatt/2) at the armature
(VMN = UBatt).
In order for the error to be initiated, the voltage
deviation must be more than 4.4 volts and continue
for more than 2 seconds.
The voltage at the field must definitely be more than
4.4 volts.

FE42 The control system (logic board) makes available an
output that is active when the main contactor is
closed. It is deactivated when the main contactor is
open.
This output is checked for a short-circuit every 8 ms.
This output is also described as "Controller started
successfully".
The output is sent to the LAS module via a ribbon
cable (connector X20).
If this information is not applied at the LAS module,
this blocks all the functions, since the safety monitor
of the module

I guess you've replace logic card inside FPS module so it's possible you have a faulty motor or power stage in FPS module.


FE55 is indicating that thas not been made the teach in process for different hydraulics potentiometers (hydraulics levers)

Good luck
  • Posted 18 Mar 2014 05:03
  • By nacsand_n
  • joined 20 Sep'09 - 716 messages
  • Madrid, Spain

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