Dell PowerEdge XE2420 EMC Installation and Service Manual - Page 72

Wiring instructions for a DC power supply unit, Installing and removing system components

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Figure 46. Installing a power supply unit Next steps 1. Connect the power cable to the PSU, and plug the cable into a power outlet. NOTE: If front bezel is installed, then en route the external cables through the gaps on the sides of bezel tray. CAUTION: When connecting the power cable to the PSU, secure the cable to the PSU with the strap. NOTE: When installing, hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the PSU and determine its status. The PSU redundancy may not occur until discovery is complete. The PSU status indicator turns green to indicate that the PSU is functioning properly. 2. If removed, install the front bezel cover. NOTE: While replacing the hot swappable PSU, after next server boot; the new PSU automatically updates to the same firmware and configuration of the replaced one. For more information about the Part replacement configuration, see the Lifecycle Controller User's Guide at www.dell.com/idracmanuals Wiring instructions for a DC power supply unit Your system supports up to two -(48-60) V DC power supply units (PSUs). NOTE: For equipment using -(48-60) V DC power supply units (PSUs), a qualified electrician must perform all connections to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the product. CAUTION: Wire the unit with copper only, unless otherwise specified, use only 10 American Wire Gauge (AWG) wire rated minimum 90ºC for source and return. Protect the -(48-60) V DC (1 wire) with a branch circuit overcurrent protection rated 50 A for DC with a high interrupt current rating. CAUTION: Connect the equipment to a -(48-60) V DC supply source that is electrically isolated from the AC source (reliably grounded -(48-60) V DC SELV source). Ensure that the -(48-60) V DC source is efficiently secured to earth (ground). NOTE: A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the field wiring. 72 Installing and removing system components

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Figure 46. Installing a power supply unit
Next steps
1.
Connect the power cable to the PSU, and plug the cable into a power outlet.
NOTE:
If front bezel is installed, then en route the external cables through the gaps on the sides of bezel tray.
CAUTION:
When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
NOTE:
When installing, hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the
PSU and determine its status. The PSU redundancy may not occur until discovery is complete. The PSU status indicator
turns green to indicate that the PSU is functioning properly.
2.
If removed,
install the front bezel cover
.
NOTE:
While replacing the hot swappable PSU, after next server boot; the new PSU automatically updates to the same
firmware and configuration of the replaced one. For more information about the Part replacement configuration, see the
Lifecycle Controller User's Guide
at
www.dell.com/idracmanuals
Wiring instructions for a DC power supply unit
Your system supports up to two –(48–60) V DC power supply units (PSUs).
NOTE:
For equipment using –(48–60) V DC power supply units (PSUs), a qualified electrician must perform all connections
to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical
wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by
Dell is not covered by your warranty. Read and follow all safety instructions that came with the product.
CAUTION:
Wire the unit with copper only, unless otherwise specified, use only 10 American Wire Gauge (AWG)
wire rated minimum 90ºC for source and return. Protect the –(48–60) V DC (1 wire) with a branch circuit over-
current protection rated 50 A for DC with a high interrupt current rating.
CAUTION:
Connect the equipment to a –(48–60) V DC supply source that is electrically isolated from the AC
source (reliably grounded –(48–60) V DC SELV source). Ensure that the –(48–60) V DC source is efficiently
secured to earth (ground).
NOTE:
A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the field wiring.
72
Installing and removing system components