janitza UMG511 Installation And Commissioning Manual page 64

Possible error
The active power is
too low or too high
The active power
receipt/supply is
mixed up.
No connection to
the device.
The device does not
work despite the
above measures.
64
Service and maintenance
Cause
The programmed current
converter translation ratio is
incorrect.
The current path is allocated
to the wrong voltage path.
The programmed current
converter translation ratio is
incorrect.
At least one current convert-
er connection is mixed up.
A current path is allocated to
the wrong voltage path.
RS485:
Device address incorrect
Incorrect protocol.
Termination is missing.
Ethernet:
IP address incorrect
Defective device.
Help
Read and program the current convert-
er translation ratio on the current con-
verter.
Check and correct the connection if
necessary.
Read and program the voltage con-
verter translation ratio on the voltage
converter.
Check and correct the connection if
necessary.
Check and correct the connection if
necessary.
Set the device address
Select protocol.
Connect the bus with terminal resist-
ance (120 Ohm).
Set the IP address on the device.
Send the device to the manufacturer
with an exact description of the fault.