• Shut down and lock out all power to ATevo.
  • Remove safety shield.
  • Disconnect the battery and dc load(s) from the DC Output Circuit Breaker (CB2+/-).
  • Check with a voltmeter before proceeding.
Wires connected to the Relay Outputs (A4-TB4), Binary Inputs (A4-TB1), and Analog Inputs (A4-TB3) may still have wetting voltages or signal voltages present.

Removal of Existing Auxiliary I/O Board:

  • Analog Inputs terminals (A4-TB3) and Binary Inputs terminals (A4-TB1) are removable. If any wires are present on these terminals, pull the terminal blocks out of their sockets.
  • Remove wires connected to Relay Output terminal block (A4-TB4).
  • Remove (4) screws that connect Auxiliary I/O Board (A2) to Heat Sink Assembly (A6).
  • Remove Auxiliary I/O Board (A4) from Rectifier / Heat Sink Assembly (A6) by pulling it forward, toward front of ATevo.

Installation of New Auxiliary I/O Board:

  • Align header socket at top right of Auxiliary I/O Board (A4) with header pins on Power Board (A2).
  • Push Auxiliary I/O Board onto header pins of Power Board and align (4) mounting holes with standoffs on Heat Sink Assembly.
  • Install (4) mounting screws through board and into standoffs.
  • Replace safety shield, close front panel door.
  • Restart ATevo.
Last modified: 2 August 2023