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7.
Turn on the power to your charging station. The cable be-
comes locked and the charging station starts behaving as a
cable model.
6.7.4
Power optimizer / external meter (requires
optional accessories)
The power optimizer / external meter feature is provided with
optional metering accessories which are sold separately.
Compatible external meters
Check the online documentation for compatible ex-
ternal meters.
In power optimizer mode, the total current drawn (by the char-
ging station and other household appliances) from the mains
switch of the house is measured with a current sensor integ-
rated into the main power line. The current limit of the system's
mains power line is set through the DIP switches inside the
charging station according to the limit set by the user. The char-
ging station dynamically adjusts its output charging current ac-
cording to the measurement of the mains power line.
The current limiter settings determine the maximum permissible
current at the grid connection point or at the meter's installa-
tion location. The maximum current for the charging station is
then dynamically adjusted to not exceed the maximum current
at the grid connection point.
DIP switch positions 4, 5 and 6 correspond to the binary digits
of the maximum current value, as shown in the table below.
When DIP switches 4, 5 and 6 are in the OFF position, then the
power optimizer functionality is disabled.
DIP switch 4 DIP switch 5 DIP switch 6 Current limit
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
ON
5111966A ISI Webasto Unite (EN)
ON
ON
1
2
3
4
5
6
OFF
value
OFF
Power optimizer
disabled
ON
16
OFF
20
ON
25
OFF
32
ON
40
OFF
63
ON
80
Installation and electrical connection | 6
The power optimizer meter must be installed just after the
mains switch of the house, as shown in the illustration above.
1.
Install the power optimizer meter
2.
Install the wiring according to the figure and table below.
Terminal
5 (CN20-1)
6 (CN20-2)
6.8
Using the Mode selection switch
The Webasto Unite has the following modes:
l Operation Mode 1 (Standard Charging): This mode is the
factory default setting.
l Operation Mode 2 No function
l Operation Mode 3 No function
l The mode selection switch must be in position 1.
6.9
Setting up Load shedding /
Potential-free contact
The Webasto Unite supports load shedding. Load shedding
provides immediate charging-current reduction in case of lim-
ited supply. Load shedding can be used in any mode, including
Standalone and OCPP-connected modes. The load-shedding
triggering signal is a dry contact, (potential free) signal. This sig-
nal must be provided externally, and must be connected to ter-
minals 3 and 4 on the power board.
Description
B (COM)
A (COM)
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3
2
1
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