Nichiyu (& Nyk) FB15PN-75-300SF:
error code B11

i have change the iIGBT +board comp , MPU board , capacitor 9 pieces as well as the contactor. All new and the error code still appear. What should i check or replace next ?
  • Posted 10 Nov 2023 19:21
  • Discussion started by Leo_Jeffrey
  • Singapore
Showing items 1 - 10 of 10 results.
Have you found fault or issue of B11 Error
  • Posted 31 May 2024 15:48
  • Reply by Ishq
  • Qatar
Hey Leo, I find it very strange the difference you have between the 3 fases. I don't know if 0.7 Mohm is ok without using a megger.
Regards
Marcb
  • Posted 24 Nov 2023 18:58
  • Reply by marcb
  • ANTWERP, Belgium
Hi, Mr. Antwerp, I measured the cable using multimeter and the reading as follows; U = 1.2 , V = 1.5 , W = 0.7 in Mega Ohm. Couldn't test the pump motor as it need to lift the battery box. Should i send for repair on the traction motor first. Need your advice. Regards Leo Jeffrey.
  • Posted 23 Nov 2023 19:13
  • Reply by Leo_Jeffrey
  • Singapore
Hello Leo, You have to disconnect the power cables (U V W cables) from the motor or the controller side. Meassure with 1 wire of your multimeter on the outside of the motor and the other one on each power cables ( U V W cables).
I think it must be some Mega Ohm value. You can do the test with the pumpmotor on your troubled machine.
Regards
marcb
  • Posted 22 Nov 2023 02:44
  • Reply by marcb
  • ANTWERP, Belgium
I do not have a megger set however i have look for an electrician who can conduct the megger test meanwhile if i measure by resistance, do i need to dismantle the circuit. appreciate for your reply. thanks and regards. Jeffrey Leo.
  • Posted 21 Nov 2023 19:21
  • Reply by Leo_Jeffrey
  • Singapore
Hey Leo,
If you test it with a megger set to 500V it must be above 0,5M Ohm.
It's normal that the main contactor opens again when you have an error like B11.
Regards
Marcb
  • Posted 20 Nov 2023 20:02
  • Reply by marcb
  • ANTWERP, Belgium
Thanks for your reply. May i know what should be the indicative values of the resistance ? I've change a new original main contactor and when i switch start, i notice that the contactor re-act contact and release immediately. May i know is this sequence is normal or any fault related ?
  • Posted 20 Nov 2023 17:04
  • Reply by Leo_Jeffrey
  • Singapore
Ok it's an IGBT module type. I have in our workshop the same problem B11, we've controlled the isolation of the drive motor and found a problem of the stator isolation. If you don't have a megger, I think you can meassure the resistance of each fase to the outside of the motor. (compaire the values with the pumpmotor)
regards
Marcb
  • Posted 18 Nov 2023 00:45
  • Reply by marcb
  • ANTWERP, Belgium
Thanks for your respond. The serial no.221AC8926. the IGBT module type CM600DU-5F 3 pieces & CM400DU-5F 3pieces Mitsubishi. I've change all 6 as well as the board comp IGBT.
  • Posted 17 Nov 2023 19:16
  • Reply by Leo_Jeffrey
  • Singapore
I would control the isolation of the drive motor with a megger. Have you found a problem on one of the IGBT? Can you mention the serial number, because this model has got different systems.
Regards
Marcb
  • Posted 16 Nov 2023 18:13
  • Reply by marcb
  • ANTWERP, Belgium

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