Offgridtec MPPT Pro Duo Bedienungsanleitung Seite 36

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4.Protections, Troubleshooting
4.1 Protections
PV Over Current/Power
PV Short Circuit
pv Reverse polarity
Ni ht Reverse Char
Reverse
Polarity
BATTI Over Voltage
BATTI Over Discharge
BATTI Overheating
BATTI Low
Temperature(Lithium
Battery')
Controller Overheating
TVSHigh Voltage
Transients
4.2 Troubleshooting
Faults henomenon
Charging LED indicator off during
daytime when sunshine falls on
PV modules ro erl
Wire connection is correctthe
controller is not workin
red on solid
Red fast flashing
1 System alarm a voltage fault
when using Lead-acid batten/
@Systemalarm an over
discharge fault when the BATTI
is 1 2V but set as 24V
@Systemalarm an over-voltage
fault when BATTI set as
BATT2 set as 24V
General information
Offgridtec GmbH
1m Gewerbepark 1 1
84307 Eggenfelden
WEEE-Reg.-Nr. DE37551136
Offgridtec
tec
& Maintenance
When the charging current or power of the PV array exceeds the controllers rated current
or ower, it will be chan
When not in the PV charging state, the controller will not be damaged in case of a short-
circuitin in PV arra
When the polarity of the PV array is reversed, the controller may not be damaged and
can continue to operate normally after the polarity is corrected.
NOTE: If the PV array is reversely connected to the controller,l
controller power(watts)from the PV array, will damage the controller.
in Prevents the batte
Fully protected against battery' reverse polarity", no damage will occur to the battery.
Correct the miswire to resume normal operation.
NOTE: Limited to the characteristic
correct, and batte
When the battery voltage reaches the overvoltage disconnect voltage, it will automatically
sto batte cha
When the batten,' voltage reaches the low voltage disconnect voltage, it will automatically
stop batten,' discharging to prevent battery damage caused by over-discharging. (Any
controller connected loads will be disconnected. Loads directly connected to the battery
will not be affected and ma continue to dischar
The controller
sensor.The controller stops working when its temperature exceeds 65 oc and restart to
work when its temperature is below 55 oc.
When the temperature detected by the optional temperature sensor is lower than the
Low-Temperature Protection Threshold(LTPT), t he controller will stop charging and
discharging automatically. When the detected temperature is higher than the LTPT,the
controller will be working automatically (The LTPTis O oc by default and can be set
within the ran e of 10 - -40 oc).
The controller is able to detect the temperature inside the battery. The controller stops
working when its temperature exceeds 85 oc and restart to work when its temperature
is below 75 oc.
The internal circuitry of the controller is designed with Transient Voltage Suppressors
(WS), which can only protect against high-voltage surge pulses with less energy. If the
controller is to be used in an area with frequent lightning strikes, it is recommended to
install an external
Possible
PV array disconnection
Battery voltage is lower
than 8.5V
BATTI over discharged
BATTI Overheating
Incorrect wiring steps.
12V and
Contact
Tel: 08721 9199400
Email: info@offgridtec.com
Web: wvm_offgridtec.com
CEO: Christian & Martin
MPPT Pro Duo
ed at the rated current or
from dischar in to the
of lithium battery, when the PV connection
connection reversed,
in to revent batte dama
can detect the battery temperature
su e arrester.
reasons
Confirm
tight
Please check the voltage of the battery. At least 8.5V
volta
When the battery' voltage is restored to or above
LVR(lowvoltage reconnect voltage), the load will
recover
The controller will automatically tum the system off.
When the temperature declines to be below 55 QC,
the controller
@Disconnect t he system, a nd reconnect t he BATT2
first, then BATTI
@@Pleasesetthe systemvoltageon the controller
to match the BATTI voltage.
Account Sparkasse
Accoun Nn: 10188985
BLZ 74351430
BAN: DE69743514300010188985
BIC:BYLADEMI E GF(Eggenfelden)
Krannich
ower.
.5 times rated
PV module at ni ht
the controller will be dama
e caused b over-char
e the batte .)
through an extemal temperature
Troubleshootin
that PV wire connections
e to activate the controller.
will resume.
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HRB: 9179 Registergericht
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is
ed.
in
are correct and
and district court
Landshut
Number. 141/134/30045
DE2871 1 1500
Mühldoff am Inn