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KACO blueplanet 1502xi User Manual

Page 9

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blueplanet Operating and Installation Instructions 1502x - 2502x

Page 11

Operation

Operating States

Status

Explanation

Comment

0

Inverter has just switched on

Only for a brief period after being fi rst switched on in the morning.

1

Waiting to start

Grid parameters and generator voltage are checked.

2

Waiting to switch off

tus before it switches over to night shutdown mode.

3

Constant voltage regulator

The inverter continues to operate with minimum MPP voltage when the grid-
feed power is low.

5

Grid-feed mode

The inverter is feeding into the grid.

8

Self test

The line relay and the shutdown of the power electronics are tested prior to the
commencement of grid-feed mode.

9

Test mode

For internal operation only.

11

Power limitation

If the generator is producing too much power, the inverter limits to the max.
power. This can occur in the midday hours if the generator has been too largely
dimensioned. This is not a malfunction.

60

PV voltage is too high for feeding into
the grid

Protective function of the inverter. The inverter can only begin feeding into the
grid once the PV voltage falls below a specifi ed value. The PV voltage is below
the maximum permissible no-load voltage, this status is not an error.

64

Output current limit

The AC current is limited once the specifi ed maximum value has been reached.

Table 1:

Explanation of the operating states

Fault signals
When these error messages are displayed, the grid-feed is inter-
rupted, the red LED (3) lights up, and the fault signal relay has
switched. This error correction takes a country-specifi c length
of time (see Installation Instructions, section 3, Technical Data).
Afterwards the red fault LED (3) goes out, the fault signal relay
drops out again, and the display signals that it is ready to feed
into the grid once again. Once the fault is gone, the blueplanet
inverter feeds in again.

Many of these fault signals point to a fault in the grid, and
are, therefore, not an operational fault on the part of the blue-
planet inverter. The minimum triggering levels are determined
by applicable standards (e.g. VDE0126-1-1 or UL 1741), and the
inverter must switch off if the permitted values are exceeded.