HT Italia SOLAR300, User Manual, Page: 81 / 160

SOLAR300 - SOLAR300N
EN - 79
Below the meaning of the above s of warning windows screen:
Type of error Description
Before start a test, please check
zero reading of DC clamp when
it’s not connected to the plant
ALWAYS perform at the start of each test the zeroing of the supplied DC clamp connected to
the instrument and not to the PV installation by pressing ZERO key on it. The result should
be a “0.000A” on meter but a small current value up to “0.02A” is permitted. After that,
connect the DC clamp to the installation
Fw SOLAR-01 < 2.02 – Irr.min =
600W/m2
The minimum irradiance threshold is different from 600W/m
2
and the internal Fw of SOLAR-
01 is < 2.02. The Fw update of SOLAR-01 unit require to send the unit to HT service
Fw SOLAR-01 < 2.03 – IP=2min
The IP > 2min and the internal Fw of SOLAR-01 is < 2.03. In this case the recording is
aborted as the not updated SOLAR-01 can not saving the values in it’s internal memory. The
Fw update of SOLAR-01 unit require to send the unit to HT service
No supply
It is recommended to connect the supply provided with the instrument, before starting
testing/recording. Anyway, it is also possible to perform a testing/recording without supply,
using the instrument’s internal battery.
Wrong phase sequence
The value of “ SEQ ” parameter in Real Time Values section (see § 5.2.1 ) is different from the
correct “ 123 ”. Check the phase sequence value of V1, V2, V3 voltages.
Negative active powers
One or more values of P1, P2, P3 Active Powers is negative (see § 5.2.1 ). Reversing if
necessary the transducer clamps of 180 degrees on phase cables in order to obtain always
positive values (except cogeneration cases).
Wrong Vref voltage anomalies
The nominal reference voltage value for voltage anomalies is not compliance to the type of
selected system (see § 5.4.2.9).
Solar 01 connected
Solar 02 connected
Confirms the connection between the instrument and SOLAR-0x. This message MUST
ALWAYS appear when connecting the instrument and SOLAR-0x using the USB cable.
Should this message not appear when connecting, disconnect and connect again the USB
cable to the two units.
SOLAR-0x not connected
Check the connection of SOLAR-0x to the instrument. The error message is displayed when
trying to start/stop a recording where item SOLAR-0x is flagged, while no connection to unit
SOLAR-0x has been detected.
Do you want to stop recording?
Message which asks the user for confirmation before stopping the recording currently being
carried out.
Wait for recording start
This message warns the user that the recording will start when reaching the following minute
or when reaching the date and time set for start (only for recordings on NPV systems).
Analysis impossible
This message warns the user that the data recorded are not compatible with the set
minimum irradiation threshold (see § 5.3.3.3) and it is not possible to provide any result
Wait for data download
This message warns the user of the data transferring phase from unit SOLAR-0x to the
instrument. Do not disconnect the USB cable during this phase.
MPP300 connected
This message confirms the connection between the instrument and MPP300. This message
MUST ALWAYS be displayed when connecting the master unit to the MPP300 via USB
cable. If, upon connection, this message should not appear, disconnect the USB cable and
connect it again.
Error in data download from
SOLAR-02 A transmission error has occurred between the SOLAR-02 and SOLAR300N or MPP300
units. Switch off and on again all units and connect them again. The units will try data
transfer again.
MPP300: low battery
The battery of MPP300 is almost flat. Connect the external power supply to MPP300.
No external power supply for
MPP300. Continue? This message warns that, in order to carry out very long recordings, it is advisable to connect
the external power supply to MPP300.
MPP300: exchanged AC and DC
voltages An exchange in the connection between DC and AC voltages has been detected. Check the
connections.
MPP300: negative power One or more Ac negative powers has been measured. This is normally due to a connection
error. Check the connections.
SOLAR-02: not detected. Stop
recording?
You are trying to stop recording while the SOLAR-02 unit is not connected with the MPP300
unit.
SOLAR-02:Firmware not correct Firmware of SOLAR-02 dosen’t match with SOLAR300N Firmware
MPP300:Firmware not correct Firmware of MPP300 dosen’t match with SOLAR300N Firmware
Table 14: Description of errors before start a recording
Depending on the type and number of errors, the necessary modifications of setting
parameters should be performed.