HP 4000.6000.8000 Enterprise Virtual Arrays - Manual (Page 54)

PDUs
Each Enterprise Virtual Array rack has either a 50- or 60-Hz, dual PDU mounted at the bottom rear
of the rack. The 228481-002/228481-003 PDU placement is back-to-back, plugs facing down,
with switches on top.
•
The standard 50-Hz PDU cable has an IEC 309, 3-wire, 30-A, 50-Hz connector.
•
The standard 60-Hz PDU cable has a NEMA L6-30P, 3-wire, 30-A, 60-Hz connector.
If these connectors are not compatible with the site power distribution, you must replace the PDU
power cord cable connector.
Each of the two PDU power cables has an AC power source specific connector. The circuit
breaker-controlled PDU outputs are routed to a group of four AC receptacles (see
Figure 27 (page
54) ). The voltages are then routed to PDMs, sometimes referred to as AC power strips, mounted
on the two vertical rails in the rear of the rack.
Figure 27 Dual PDU assembly
2. PDU 2 1. PDU 1
4. AC receptacles 3. Circuit breakers
5. Mounting hardware
PDU 1
PDU 1 connects to AC power distribution source 1. A PDU 1 failure:
•
Disables the power distribution circuit.
•
Removes power from PDMs 1, 2, and 3.
•
Disables PS 1 in the drive enclosures.
•
Disables the upper controller power supply.
PDU 2
PDU 2 connects to AC power distribution source 2. A PDU 2 failure:
•
Disables the power distribution circuit.
•
Removes power from PDMs 4, 5, and 6.
•
Disables PS 2 in the drive enclosures.
•
Disables the lower controller power supply.
PDMs
There are six PDMs mounted in the rear of each rack:
•
Three mounted on the left vertical rail connect to PDU 1.
•
Three mounted on the right vertical rail connect to PDU 2.
54 Enterprise Virtual Array hardware components