Power Off

This section provides instructions for powering off the Power Block.

Required Tools and Materials

Multimeter

 

Multimeter

 

Lockout or tagout equipment

Lockout or tagout equipment
Risk of shock
  • Before any procedure, disconnect the power.
    • Depending on the Express Plus architecture used at the site, the Power Block may be electrically connected to other Power Block HV DCClosed High Voltage Direct Current power sources through a Power Link or Power Hub. Consult the site drawings to ensure power is disconnected from all connected Power Blocks.
  • Follow local code and site lockout/tagout procedure to de-energize the station.
  • Wait for energy to dissipate (approximately five minutes).
  • Keep power off until all covers and panels are reinstalled and the work is complete.
Failure to follow these instructions can result in serious injury, loss of life, or property damage.

Power Off the Station

  1. Refer to the site drawings and identify the components to be serviced.

  2. End all charging sessions and activity.

    Failure to end the charging session before beginning service could damage hardware components. Such damaged components may need to be replaced, and this may be costly.

  3. Power off all upstream components as follows:

    Powering off all upstream components will power off all components at the site. Powering off the 48 V input is not required.

    1. Disconnect power at the site electrical panel.

    1. Wait the required time for energy to dissipate (see label on the product).

  4. Use a multimeter to confirm that power is off.

  5. Check the power status.

  6. Perform service or maintenance.


Disconnect Power

Disconnect power at the site electrical panel and use a lockout equipment to test that power is off.

Disconnecting power at a site's electrical panel using a multimeter

Check Power Block Status Light

  1. Open the security panel.

    Open the security panel to check that the status light is off and to read the safety label for ensuring energy has been dissipated

  2. The status light (a) must be off (unlit). If the status light is on (glowing any color), do not proceed further with servicing. Wait the required time for energy to dissipate (see safety label (b) on the product).

When you power on, the status light should turn on (light up yellow, then green). If the light is red, contact ChargePoint at chargepoint.com/support.