HomeServiceFAQ FAQ
  • Q
    How to deal with CAN interrupt failure reported by controller?
    A
    Check if CAN High/low voltage to earth, CAN High/low GND  short circuit, analyse if report is correct.
  • Q
    The main controller doesn't work under hardware/software normal working?
    A
    Reupade software - software initialization -  modify thousand's place in P10.21 to 1 - learn swing angle - outage, powerup again.
  • Q
    How to decide if DC/DC is normal?
    A
    Check if high voltage input & control signal is normal, if normal, measure if the DC/DC output achieve the protocol required value ( generally 27V)
  • Q
    How to troubleshoot insulation monitoring instrument dropping problem?
    A
    1. Measure if  external device  24V power to insulation monitoring instrument is normal.
    2. Check if insulation monitoring instrument CAN is normal or transmit data to TCU.

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