USER MANUAL of HPC-250HT
PE07019-022-B
Page 11 of 69
3.2.5 Light Indicators (-H1, -H2)
In case of a fault during operation of the HPC-250HT, the type of the occurred fault is being
indicated via a red and a yellow light on the front of the AC side cabinet (-E2) of the HPC-
250HT cubicle.
-
Yellow
An ALARM event did occur during operation of the HPC-250HT.
The system does not switch itself off.
-
Red
A TRIP or EMERGENCY event did occur during operation of the HPC-250HT.
3.3 Operating Modes
OFFLINE
AUTOMATIC
STARTUP
WAITING AFTER
GRID FAILURE
CONNECTING
TO SOLAR
ARRAYS
WAITING AFTER
LOW POWER
STOP
WAITING AFTER
GRID FAILURE
TESTING OF
STRING
VOLTAGE
GRID VOLTAGE
AND
FREQUENCY
TEST
CONNECTING
TO GRID, TEST
OF STRING
VOLTAGE
FEEDING TO
THE GRID
SHUT DOWN
SHUT DOWN
DISCONNECTING
FROM GRID