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Operation
Battery parameters
Switch-on delay
Switch-on voltage
Switch-off voltage
Switch-off current
Absorption time
Function
The EFOY Pro fuel cell does not start immediately if the
switch-on voltage only drops below the set threshold level
temporarily. The device only starts automatically if the
switch-on voltage is still below this threshold level after
the switch-on delay of 60 seconds. For example, with the
factory default of 24.4 V / 48.8 V for lead-acid batteries, the
switch-on voltage must drop below 24.4 V / 48.8 V for at
least 60 seconds in order for the EFOY Pro fuel cell to start.
If loads with a high rate of power consumption are
operated temporarily, this value must be set in
accordance with the operating times of these loads.
The EFOY Pro fuel cell switches on at the set voltage and
charges the battery.
Setting too high a value for the switch-on voltage results
in frequent starting of the EFOY Pro fuel cell. Setting too
low a value for the switch-on voltage results in damage to
the battery. The default value for lead batteries is 24.4 V /
48.8 V, which corresponds to approx. 50% of the battery
charge condition.
If the battery voltage reaches the set level, the EFOY Pro
fuel cell switches off, provided that the value set for the
"Switch-off current" or "Absorption time" parameter has
also been reached.
Please note your battery's end-of-charging voltage. Note
the charging recommendations provided by the battery
manufacturer.
The EFOY Pro fuel cell switches off if the current drops
below the set switch-off current.
If you want the battery voltage to serve as the only switch-
off parameter, set the maximum value, as the current is
always below this value in EFOY Pro fuel cells.
This function serves as an additional switch-off criterion for
EFOY Pro fuel cells if the switch-off current level is not
reached within the set time period.
This period is set by default to 180 minutes, but can be
changed to any value between 0 and 300 minutes.
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