frako EM-PQ 2500, Руководство по эксплуатации

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83
Service and Maintenance
Possible errors
Effective power is
too high or low.
Effective power-
receipt/supply are
mixed up.
No connection to
device.
The device does not
work despite taking
the above measures.
Cause
The programmed current
converter transfer ratio is
wrong.
The current path is allocated
to the wrong voltage path.
The programmed voltage
converter transfer ratio is
wrong.
At least one current conver-
ter connection is mixed up.
A current path is allocated to
the wrong voltage path.
RS485:
- Wrong device address.
- Different bus speeds
- Wrong protocol.
- Termination is missing.
Ethernet:
- IP address is wrong
Device is defective.
Remedy
Read and program the current conver-
ter transfer ratio on the current conver-
ter.
Check the connection and correct if
necessary.
Read and program the current conver-
ter transfer ratio on the current conver-
ter.
Check and correct the connection if
necessary.
Check and correct the connection if
necessary.
Set device address.
Check and correct the speed
(baudrate)
Select protocol.
Connect bus with terminating resistor
(120 Ohm).
Set IP address on the device.
Send the device to the manufacturer to
check with an exact description of the
error.