Operating Mode; Manual Mode (Man) - LEGRAND 4 226 81 Installation And User Manual

Automatic transfer switch
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3. Operating mode

With of OFF-RESET/MAN/AUT keys the desiderated operating modes can be selected and they will appear on the display.
Fig. 2 - OFF/RESET
The change of operating mode can be done by pressing the specific button for at least 0.5s. After this time, the new cho-
sen modality will appear another display.
3.1
Reset mode (OFF-RESET)
• In this mode the ATS looks over the lines status but it does not perform any changing actions.
• Lines surveillance, measures display and status LEDs remain active. If the control of the switching devices is impulsive,
in OFF mode both open and close commands are disabled. If the command is in continuous mode, the behaviour can
be selected by P05.10.
• Pressing the OFF-RESET button it's possible to reset the retentive alarms, after removing alarm conditions.
To access the programming menu is necessary to activate the OFF mode.
3.2

Manual mode (MAN)

• In MAN mode it is possible to manually control the devices. This operation could be done on devices Q1 and Q2 in fun-
ctions of chosen line (line 1 or line 2). It is possible to select the switch to control by pressing the MAN key. On display
the device enabled (Q1 or Q2) appears. By pressing the ▲ or ▼•button it is possible to confirm the closing or opening
operation (the command will be received if the button is pushed for at least 300ms).
Fig. 5 - Q1 Selection
• While devices opening-closing is enabled, the page scroll is locked. Pressing MAN several times it is possible to unlock
it and to move through other display pages.
• If it is commanded the closing of an opened device while the other one is still closed, the ATS first of all opens the closed
device and then it closes the commanded one, interposing the programmed interlock time.
Voltage Line 1
Q1 selected
Page scroll locked
With an application Utility-Generator (U-G) or Generator-Generator (G-G), it is possible to manually control the switching
on and off of the generator in a manner similar to that above described, but moving on the page start / stop groups.
8
Fig. 3 - MAN
Fig. 6 - Q1 Closing
Function selectable
Fig. 7 - Manual mode (MAN)
Fig. 4 - AUT
Voltage Line 2
with MAN
Fig. 8 - Manual GEN mode

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