Studer Innotec SA
VarioString
24 V 2.3 User manual
6.4 “ERROR” INDICATOR (3)
The table below describes the type of error according to the number of times this indicator blinks red.
If no indicator lights up, the equipment is de-energized.
The equipment is energized but it does not operate because
of a user command (the “Set” button has been pressed for 5s).
Battery low voltage
warning
The equipment is still operating but shows that the battery is
lower than 40V.
The VarioString detects an abnormal situation which does not
correspond to the programmed value of the parameter
{14040}, {14041} and {14042} checking the state of the earth
connection.
Power reduction or stop
due to an excessive
temperature in the
equipment.
This may be due to an excessive ambient temperature,
exposure of the equipment to a heat source (sun) or to
deficient or impeded ventilation.
Battery voltage higher
than 68V
Check the cause of this excessive voltage. The equipment
automatically starts again when voltage returns to a value
lower than 64V.
The PV voltage is higher
than the set value of the
max operating limit.
The PV voltage exceeds the max limit (600V in parallel or
independent, 900V in series). The equipment will stop or won’t
start. See also chap. 4.3.2.
Software incompatibility
in a system
The different parts of the system’s equipment must have the
same software version to function properly. Proceed with the
update following the procedure in the RCC-02/03 manual.
The PV current is higher
than the set value of the
max operating limit.
The PV current exceeds the max limit (13A in independent or
in series, 26A in parallel). The equipment will stop or won’t start.
See also chap. 4.3.3.1
Error in cabling of PV
modules
The cabling specified by the parameter {14002} does not
correspond to the cabling detected by the device. Only
VS-120.
6.5 CHARGING CURRENT INDICATOR (5)-(6)-(7)-(8)-(9)-(10)
These indicators work as a type of
histogram. They blink or are lit up
continually to indicate the range
of charge current from the
VarioString given in the table to
the right.
Example with the VS-120:
For a charge current of 65 A, the
LEDS (5, 6, and 7) are lit up
continuously while the LED (8) is
blinking.
The RCC-02/03 remote control
allows a complete and detailed
display of the VarioString's
behaviour (see chap. 10.1).
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