76 Operations Switched PDU
Installation and Operations Manual
Setting the power factor:
The Set System PF command sets the power factor used in the total system power calculation. The valid range is .50
to 1.00.
To set the power factor:
At the Switched CDU: prompt type set system pf, followed by the power factor, and press Enter.
Setting the 3-phase load out-of-balance threshold:
The Set System Balance command determines when the current on the lines of a 3-phase system are out-of-balance
between the three phases of power.
To set the 3-phase load out-of-balance threshold:
At the Switched CDU: prompt, type set system balance, followed by the load out-of-balance threshold (in percent),
and press Enter.
Example:
The following command sets the 3-phase load out-of-balance threshold to 20%.
Switched CDU: : set system balance 20<Enter>
Setting the 3-phase load out-of-balance alert:
The Set System Balance Alert command enables or disables the sending of an alert when the current on the lines of a
3-phase system are past a pre-set threshold (percentage) and are out-of-balance between the three phases of power.
At the Switched CDU: prompt, type set system balancealert, followed by enabled or disabled, and press Enter.
Example:
The following command enables the load out-of-balance alert:
Switched CDU: : set system balancealert enabled<Enter>
NOTES:
When a device with 3-phase input voltage is out-of-balance, efficiency is reduced and the unit is prevented from reaching maximum
capacity. When an alert for the out-of-balance condition is received (if the alerting feature is enabled), it may be necessary to adjust
distribution of the loads.
For 3-phase systems, if the Out-of-Balance Alerting feature is enabled, and the system goes into a load out-of-balance condition, the
System Status command will display the alert “3ph Out-of-Balance” in the Tower Status section, unless there is a higher priority tower
error state to report.
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