Steca PR 2020 IP65, Руководство по эксплуатации, Страница: 8 / 24

8
718.573 | 11.27
3. Protective functions of the controller
The regulator is equipped with various devices to protect its electronics, battery and
load. If the regulator’s maximal permitted data are exceeded, the regulator can break
down despite the protective functions. Never improperly connect more than one com-
ponent to the regulator! Error messages (Point 7. Error messages) display any protective
devices triggered. The protective function is automatically reset after remedying the
error.
• Protection against reverse polarity of solar modules
The solar module’s power may not exceed the regulator’s nominal power!
• Protection against reverse polarity of the connected
consumer at the load output
Protects the regulator, not the consumer.
• Protection against reverse polarity of connected battery
Charging and discharging the battery is prevented.
• Short-circuiting at the module input
• Short-circuiting at the load output
• Protection against over charging
Regulator disconnects the connection to the battery and turns off the consumer.
• Open circuit-proof during operation without battery or consumer
Load output is protected from high module open circuit voltage directly flowing to
load side.
• Reverse current protection at night
Prevents reverse current in the solar module at night.
An additional reverse current diode is not necessary!
• Overvoltage and undervoltage protection
Immediately turns off the load output during insufficient or excessive battery voltage.
• Excess temperature protection
If the temperature inside the regulator is too high, the regulator’s load output is
turned off to reduce power loss.
• Overload protection at load output
If the permitted load current is exceeded, the load output is turned off.
• Low power surge protection
A TVS-Diode at the module input protects against overvoltage >47,8 V. The compo-
nent limits the diverted energy to 5 kW
peak
.
• Deep discharging protection / low voltage disconnect
Prevents excessive deep discharging or overloading the battery.
• Meets the European CE standards
Note: Failures not protected by the regulator could disable essential functions
and effect the over charge and deep discharge protection. As consequence
uncontrolled gassing or sulphation could damage the battery.