9
External backup
Use this alarm for triggering the external backup relay. This
external relay is used to switch loads to the local out when the
grid connection fails.
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Activation delay: delay time in seconds before the alarm will be
activated (between 0 and 100 seconds).
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Deactivation delay: delay time in seconds before the alarm will
be deactivated. (between 0 and 100 seconds).
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Maximum active time: maximum time in minutes that the alarm
can be activated (between 0 – 720 minutes).
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Minimum active time: minimum time in minutes that the alarm
can be activated (between 0 – 720 minutes).
To use the external backup application this alarm must be linked
to a user-selectable relay.
Relay 1 / 2
When you have set alarm 1/2, you can then set the two user-
selectable relays (K201 and K202).
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Alarm: select alarm to activate this user-selectable relay.
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Set relay signal type
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Normal (default): user-selectable relay is activated when
switched on.
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Pulse: activates the user-selectable relay for a defined duration
of between 1 and 10 seconds when switched on, for example
a start signal or a short ringing signal.
Standby
When “standby allowed” is activated the system will go into
standby mode when there is no solar power or battery power
available. In standby mode the system consumes a minimum
amount of energy. Local out will also be without power in standby,
and no emergency power is available.
Standby timer
When “standby timer” is enabled you can set a time interval
during which the system is forced to remain in standby. Example:
The load during the night is very low, so the dissipation in the
system is high compared to the load that is compensated. In that
case you force the system into standby during that period.
Note: If a grid failure occurs while the system is in standby, the
system will switch to backup operation.
Figure 18: External backup
Figure 19: Relay 1 / 2
