Brainboxes PX-246 Especificaciones descargar pdf (Pagina 61)

Operation

6.7 MODE SELECTION

NOTE:

NOTE:NOTE:

NOTE:

If a digital input configured to

If a digital input configured to If a digital input configured to

If a digital input configured to

panel lock

panel lockpanel lock

panel lock

is active,

is active, is active,

is active, changing module modes will

changing module modes will changing module modes will

changing module modes will

not be possible. Viewing the instruments and event

not be possible. Viewing the instruments and eventnot be possible. Viewing the instruments and event

not be possible. Viewing the instruments and event

logs is NOT affected by panel lock.

logs is NOT affected by panel lock. logs is NOT affected by panel lock.

logs is NOT affected by panel lock.

Pressing the MODE

‘ ’

button sets which of the three modes below to leave the controller in.

6.7.1 TEST ON LOAD

Activate by pressing the MODE

‘ ’

button repeatedly until ‘Test on Load’ is shown on the display,

then press the TICK

‘ ’

button to confirm the change. An LED indicator beside the button confirms

this action.

The Test on Load mode will start S2 (if configured as a generator) and transfer the load to S2.

6.7.1.1 STARTING SEQUENCE

As soon as the MODE

‘ ’

is selected and confirmed by pressing the TICK

‘ ’

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 will appear 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).

6.7.1.2 S2 AVAILABLE

In Test on Load mode, the load is automatically transferred to S2 when it is within limits (if configured

as a mains supply) or had achieved loading voltage and frequency (if configured as a generator).

If a start/load request is present but S2 will not go on load, an input configured to ‘S2 Load Inhibit’

could be active.

NOTE:

NOTE: NOTE:

NOTE: The load transfer signal remains inactive until

The load transfer signal remains inactive until The load transfer signal remains inactive until

The load transfer signal remains inactive until S2 is seen as available

S2 is seen as availableS2 is seen as available

S2 is seen as available. This

. This . This

. This

prevents

prevents prevents

prevents loading to a supply that has failed or is not yet available

loading to a supply that has failed or is not yet availableloading to a supply that has failed or is not yet available

loading to a supply that has failed or is not yet available.

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.

6.7.1.3 STOPPING SEQUENCE

In Test on Load mode, S2 will continue to run on load until either:

• Pressing the START INHIBIT

‘ ’

button to return to start inhibit mode.

• Pressing the AUTO

‘ ’

button to return to automatic mode.

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