Description of Controls
057-233 ISSUE: 1 Page 62 of 90
4.8 MANUAL MODE
NOTE: If a digital input configured to Panel Lock is active, changing module modes is not
possible. Viewing the instruments and event logs is NOT affected by panel lock.
Manual mode is activated by pressing the button.
In Manual mode, the module actives an output to give a start signal to an external generator
controller (if S2 is configured as a generator supply), and if required, change the state of the load
switching devices. An LED indicator beside the button confirms this action.
4.8.1 STARTING SEQUENCE
NOTE: There is no start delay in this mode of operation.
As soon as the Manual mode button is pressed, the output to give a start signal to an external
generator controller is activated (if S2 is configured as a generator)
If the generator fails to start during the ‘S2 Fail Delay’ timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved loading voltage and frequency (if configured as a generator).
4.8.2 S2 AVAILABLE
NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.
In Manual mode, the load is not transferred to S2 unless a ‘loading request’ is made and the S2
supply is within limits (if configured as a mains supply) or achieve Loading Voltage and Loading
Frequency (if configured as a generator).
A loading request can come from a number of sources.
• Pressing the Close/Open S2 button
• S1 supply out of limits
• Activation of an auxiliary input that has been configured to remote start on load
• Activation of the inbuilt exercise scheduler if configured for ‘on load’ runs.
As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section entitled Load Shedding elsewhere in this document for further details.
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