Steca PA 15, Руководство по эксплуатации

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PA15 TTS Operating Manual Page 35
consumers connected to the PA15, for example, in order to prevent an
exhaustive discharge of the battery.
Depending on the operating mode set on the PA15, the switching
threshold values selected on adjusting controllers P1 and P2 and the data
transferred by the Tarom, the load output on the PA15 is enabled or
blocked.
Enabled in this case means that the battery voltage is available on the
PA15 output terminal. The output signal is therefore always related to the
system battery.
Blocked means that the connection to the system battery has been
interrupted.
As a power MOSFET is used as the switching element, additional charge
sources (solar manager) will need to be integrated using an external
switching element (relay, contactor). If the additional charge source is
connected directly to the load terminals, this charge source cannot be
blocked due to the diode integrated into the power MOSFET. This may
result in the system battery being overloaded.
The operating modes
The Steca PA15 TTS remote switch has different operating modes.
Depending on the function required, the operating mode in question needs
to be set on the jumper block and the two adjusting potentiometers. These
modes are described below.
Different “fail safe” devices need to be accessed, depending on the
operating mode. This device becomes active if no data signal can be
received.
SOC control (jumper = SOC MANAGER)
For DC consumer devices
In this case, the remote switch functions as a decentralised exhaustive
discharge protection device, i.e. various consumer devices can be
switched on and off automatically according to priorities at any installation
site.
If the shutdown criterion is fulfilled, the device will emit a warning by
beeping for around one minute (or 10 times), before the load is thrown off.
The shutdown threshold is set using controller P1, and the shutdown
threshold using P2. Please note that the value set for P1 must always be
smaller than the value at P2.
For example, a connected consumer can be switched on at an SOC of >=
80% and shut down again when an SOC of 50% is reached.