E-48Â Option Card External Power Loss fault in Toshiba drive
E-48 Option Card External Power Loss fault in Toshiba drive
Description Some advanced option cards (like Profinet, EtherCAT, or high-end Safety cards) have an input for an external 24VDC power supply. This allows the network communication to stay alive even if the main AC power to the drive is cut (to keep the PLC happy). E-48 indicates that this external backup power supply has dropped out while the main drive is still running, or the card configuration expects external power but doesn't see it. Causes
1. PSU Failure: The external 24V power supply inside the cabinet has tripped or failed.
2. Connector Loose: The dedicated 2-pin power plug on the face of the option card is unplugged.
3. Configuration: The parameter "Option Power Supply" is set to "External" when no external supply is wired. Solution If you intended to use external power to keep comms alive: Check the 24VDC source. Measure voltage at the option card connector.
If you do NOT need this feature (i.e., you don't care if comms die when the drive powers down): You typically need to change a jumper or DIP switch on the option card itself, or change a drive parameter to "Internal Power Supply." This tells the card to draw its logic power from the drive's mainboard instead of the external connector, clearing the E-48 fault.
Description Some advanced option cards (like Profinet, EtherCAT, or high-end Safety cards) have an input for an external 24VDC power supply. This allows the network communication to stay alive even if the main AC power to the drive is cut (to keep the PLC happy). E-48 indicates that this external backup power supply has dropped out while the main drive is still running, or the card configuration expects external power but doesn't see it. Causes
1. PSU Failure: The external 24V power supply inside the cabinet has tripped or failed.
2. Connector Loose: The dedicated 2-pin power plug on the face of the option card is unplugged.
3. Configuration: The parameter "Option Power Supply" is set to "External" when no external supply is wired. Solution If you intended to use external power to keep comms alive: Check the 24VDC source. Measure voltage at the option card connector.
If you do NOT need this feature (i.e., you don't care if comms die when the drive powers down): You typically need to change a jumper or DIP switch on the option card itself, or change a drive parameter to "Internal Power Supply." This tells the card to draw its logic power from the drive's mainboard instead of the external connector, clearing the E-48 fault.
Comments
Post a Comment