Preparation:
- 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.
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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. |
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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, and restart ATevo.
Last modified:
5 March 2021