E-39Â Keypad Transmission fault in Toshiba drive
E-39 Keypad Transmission Error 2 fault in Toshiba drive
Description Found on the latest AS3 and G9 drives. While E-17 and E-38 relate to general communication noise, E-39 specifically indicates a CPU interrupt failure related to the keypad display refresh cycle. It means the main processor is too busy or locked up to update the screen. This is often a symptom of "CPU Overload" caused by excessive background tasks (like complex My Function logic). Causes
1. Logic Overload: Running a very large "My Function" program that consumes all CPU cycles.
2. Network Storm: The Ethernet port is flooded with broadcast packets, distracting the CPU from the keypad.
3. Hardware Glitch: A physical defect in the ribbon cable pins (Clock line specifically). Solution If you are running a custom logic script (My Function), disable it. If E-39 clears, your code is inefficient (e.g., infinite loops or too many math operations). Simplify the code.
Disconnect the Ethernet/IP or Modbus cable. If the fault clears, your network is flooding the drive. Configure your switch for "IGMP Snooping" to filter traffic.
Reseat the keypad connection. If the fault persists on a factory-default drive with no network, the Control Board CPU is defective.
Description Found on the latest AS3 and G9 drives. While E-17 and E-38 relate to general communication noise, E-39 specifically indicates a CPU interrupt failure related to the keypad display refresh cycle. It means the main processor is too busy or locked up to update the screen. This is often a symptom of "CPU Overload" caused by excessive background tasks (like complex My Function logic). Causes
1. Logic Overload: Running a very large "My Function" program that consumes all CPU cycles.
2. Network Storm: The Ethernet port is flooded with broadcast packets, distracting the CPU from the keypad.
3. Hardware Glitch: A physical defect in the ribbon cable pins (Clock line specifically). Solution If you are running a custom logic script (My Function), disable it. If E-39 clears, your code is inefficient (e.g., infinite loops or too many math operations). Simplify the code.
Disconnect the Ethernet/IP or Modbus cable. If the fault clears, your network is flooding the drive. Configure your switch for "IGMP Snooping" to filter traffic.
Reseat the keypad connection. If the fault persists on a factory-default drive with no network, the Control Board CPU is defective.
Comments
Post a Comment