Install a power supply unit

Use this information to install a power supply unit.

About this task

The following describes the information that you must consider when installing a power supply:

• If the power supply unit to be removed is the only one installed, the power supply unit is not hot-swappable. Before removing it, you must turn off the server first. To support redundancy mode or hot-swap, install an additional hot-swap power supply unit.

• If you are replacing the existing power supply with a new power supply:

  • Use Lenovo Capacity Planner to calculate the required power capacity for what is configured for your server. More information about Lenovo Capacity Planner is available at: Lenovo Capacity Planner website

  • Ensure that the devices that you are installing are supported. For a list of supported optional devices for the server, go to: Lenovo ServerProven website

  • Attach the power information label that comes with this option on the existing label near the power supply.

    Figure 1. Example power supply unit label on the top cover
    
    

Safety information for AC power supplies

S035

CAUTION

Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

S002

CAUTION

The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

S001

DANGER

danger

Electrical current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

• Connect all power cords to a properly wired and grounded electrical outlet/source.
• Connect any equipment that will be attached to this product to properly wired outlets/sources.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• The device might have more than one power cord, to remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

Safety information for DC power supplies

CAUTION

240 V dc input (input range: 180-300 V dc) is supported in Chinese Mainland ONLY. Power supply with 240 V dc input cannot support hot plugging power cord function. Before removing the power supply with dc input, please turn off server or disconnect dc power sources at the breaker panel or by turning off the power source. Then, remove the power cord.

NEVER CONNECT AND DISCONNECT THE POWER SUPPLY CABLE AND EQUIPMENT WHILE YOUR EQUIPMENT IS POWERED ON WITH DC SUPPLY (hot-plugging). Otherwise you may damage the equipment and result in data loss, the damages and losses result from incorrect operation of the equipment will not be covered by the manufacturers’ warranty.

S035

CAUTION

Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

S019

CAUTION

The power-control button on the device does not turn off the electrical current supplied to the device. The device also might have more than one connection to dc power. To remove all electrical current from the device, ensure that all connections to dc power are disconnected at the dc power input terminals.

S029

DANGER

danger

For -48V dc power supply, electrical current from power cords is hazardous.

To avoid a shock hazard:

• To connect or disconnect -48V dc power cords when you need to remove/install redundancy power supply unit(s).

To Connect:

To Disconnect:

Turn OFF subject dc power source(s) and equipment(s) that are attached to this product. Install the power supply unit(s) into the system housing. Attach dc power cord(s) to the product. Ensure correct polarity of -48 V dc connections: RTN is + and -Vin (typical -48 V) dc is -. Earth ground should be connected very well. Connect dc power cord(s) to subject power source(s). Turn ON all the power source(s).

Disconnect or turn off the subject dc power source(s) (at the breaker panel) before removing the power supply unit(s). Remove the subject dc cord(s) and make sure the wire terminal of power cord(s) is insulated. Unplug the subject power supply unit(s) from the system housing.

Attention

• Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

Procedure

1. Touch the static-protective package that contains the hot-swap power supply to any unpainted surface on the outside of the server. And then, take the hot-swap power supply out of the package and place it on a static-protective surface.
2. If there is a power-supply filler installed, remove it.
   Figure 2. Hot-swap power supply filler removal
   
   
3. Slide the new hot-swap power supply into the bay until it snaps into position.
   Figure 3. Hot-swap power supply installation
   
   
4. Connect the power supply unit to a properly grounded electrical outlet.

   • For 240 V DC power supply units:

     1. Turn off the server.

     2. Connect one end of the power cord to the power connector on the power supply unit.

     3. Connect the other end of the power cord to a properly grounded electrical outlet.

   • For AC power supply units:

     1. Connect one end of the power cord to the power connector on the power supply unit.

     2. Connect the other end of the power cord to a properly grounded electrical outlet.

   • For –48V DC power supply units:

     1. Use a slotted screwdriver to loosen the 3 captive screws on the power supply terminal block.

     2. Check the type label on the power supply block and each power cord.

        Type	PSU terminal block	Power cord
        Input		-Vin
        Ground		GND
        Input		RTN

     3. Face the groove side of each power cord pin upwards, and then plug the pins into corresponding holes on the power block. Use the table above for guidance to ensure that the pins find correct slots.

     4. Tighten the captive screws on the power block. Ensure that the screws and cord pins are secured in place and no bare metal parts are shown.

     5. Connect the other end of the cables to a properly grounded electrical outlet. Ensure that the cable ends find correct outlets.