The 7-Segment Display; Checking The Delivery; Identifying Different Control Unit Types - ABB BCU-02 Hardware Manual

Description
Miscellaneous
+ Battery Real-time clock battery

The 7-segment display


The following table describes the indications of the 7-segment display on the control unit.
Multicharacter indications are displayed as repeated sequences of characters.
"U" is indicated shortly before "o".
The control program has been launched and is running.
Flashing character.
The firmware cannot be started: The memory unit is missing or corrupted.
The firmware download from a PC to the control unit is in progress.
At the converter power-up, the 7-segment display can show short indications of, for example,
"1", "2", "b" or "U". These are normal indications immediately after powering up the converter.
If the 7-segment display ends up showing other values than described above after the
power-up, it indicates a hardware failure.

Checking the delivery

Check that all items listed below are present. Check that there are no signs of damage:
•
control unit with the I/O connectors
•
memory unit
•
SD/SDHC flash memory card (inserted in its slot)
•
real-time clock battery.

Identifying different control unit types


Before installation, check that the control unit has the correct control program for the
converter hardware in question. The control program is shown in the label attached to the
memory unit.
Check also that the control unit is suitable for your equipment configuration.
BCU-02/12/22 control units 11