Outlet management in PDU (v2.0.1-2.2.5)(legacy)

Owned by Vladimir Tayzhev
Last updated: Dec 16, 2024
3 min read

Outlets switching in SC1108 is different from the SC8100/8110.

The functionality

The following options are available for managing outlets:

  • Setting the outlet in a Default state. Outlet has the status Default state when its condition was not changed by the user or by logic.

  • Manual setting

  • Automatic logic setting

  • Formatting of a given pulse duration by the user's command or by the logic

  • Setting limits on the simultaneous operation of the outlets. When the equipment is powered from a limited power source (e.g. UPS) it is necessary to limit the possible overloads. PDU has the possibility to set a pause between switching on power outlets so that if the command is given for simultaneous switching on of outlets, they would switch on one by one after a certain time.

Settings

Each 8 outlets in the PDU System tree belong to a group of Block N

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Each Block module has a panel "Module properties", which has the option to delay the relais - a slider Interval (ms).  Interval determines the delay between relays switching on if several relays should be switched on at the same time.  The minimum delay interval is 22 ms.  The minimum delay interval for the simultaneous operation of outlets is 22ms.

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In addition,  it is possible to set a default state for all relays.  For this go to panel "Module properties" -> "Outlets Setup".

Individual outlet settings are set in the panel "Sensor properties":

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Default state - It is possible to set an initial default state for each outlet.  The outlet will switch into this state when the system is started.
Pulse duration - it is possible to set pulse duration for each outlet. The pulse duration is set in seconds.  Min duration is 1 sec.

Attention: Do not forget to save the settings in Flash System Menu -> Save settings to flash

 

Outlets management

Tab "Outlets" - for switching outlets on/off through the system interface

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The button "Full off"  is used for emergency shutdown of all outlets. When it is pressed all logics that that were set are disabled.  Attention! The system will issue a warning and ask for the current password!

The current state of outlets is displayed with different icon colours.  Grey - switched OFF, green - switched ON.
The socket icon shows the command being sent to change the state of the relay.  The line under the socket icon shows the command being executed. The figure below shows

Outlet-2 and Outlet- 4: have already been switched to the ON state.

Outlet-3: command is sent; relay NOT switched ON because of time delay.

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To change the state of the relay, tick the appropriate state and click Apply.  Outlets that were not ticked will not change their current status.
Button Set OFF  will set all the relays into the OFF state, press the button Apply to activate this function.

 

Logic

Outlets can be used in the creation of logic; both in executed actions (THEN) and in conditional inputs (IF).
Input conditions (IF) are checked against the actual state of the relay.
PDUs (including SC1108) have more relay states than modules SC8100/SC8110 
A complete list of states:

  • On
    outlet has power

  • Off
    the outlet has no power

  • Alarm
    command has been sent to the outlet but has not been executed. This can occur when the system unit has lost its communication with the outlet's module and at the same time, the system unit has been given a command to change the relay state.  In the Alarm state, all outlets from the same module will switch their state simultaneously.  For this reason, it is enough to check only one outlet to control the entire module.

  • Not connected
    The system unit has lost its communication with the outlet's module. This state allows automatic and "transparent" (for the user) restoration of the normal operation