Fuji Electric FRENIC-ECO, Инструкция по эксплуатации

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[ 15 ] er1 Memory error
Problem Error occurred in writing the data to the memory in the inverter.
Possible Causes What to Check and Suggested Measures
(1) While the inverter was
writing data (especially
initializing data or copying
data), power supply was
turned OFF and the
voltage for the control
circuit dropped.
Check if pressing the key resets the alarm after the function code data
are initialized by setting the data of H03 to 1.
Î Return the initialized function code data to their previous settings, then
restart the operation.
(2) A high intensity noise was
given to the inverter while
data (especially initializing
data) was being written.
Check if appropriate noise control measures have been implemented (e.g.,
correct grounding and routing of control and main circuit wires). Also,
perform the same check as described in (1) above.
Î Improve noise control. Alternatively, return the initialized function code
data to their previous settings, then restart the operation.
(3) The control circuit failed.
Initialize the function code data by setting H03 to 1, then reset the alarm by
pressing the
key and check that the alarm goes on.
Î This problem was caused by a problem of the printed circuit board (PCB)
(on which the CPU is mounted). Contact your Fuji Electric representative.
[ 16 ] er2 Keypad communications error
Problem A communications error occurred between the remote keypad and the inverter.
Possible Causes What to Check and Suggested Measures
(1) Break in the
communications cable or
poor contact.
Check continuity of the cable, contacts and connections.
Î Re-insert the connector firmly.
Î
Replace the cable.
(2) A high intensity noise was
given to the inverter.
Check if appropriate noise control measures have been implemented (e.g.,
correct grounding and routing of control and main circuit wires).
Î Improve noise control. For details, refer to "Appendix A" of the
FRENIC-Eco User’s Manual.
(3) The keypad
malfunctioned.
Check that alarm
er2
does not occur if you connect another keypad to the
inverter.
Î Replace the keypad.
[ 17 ] er3 CPU error
Problem A CPU error (e.g. erratic CPU operation) occurred.
Possible Causes What to Check and Suggested Measures
(1) A high intensity noise was
given to the inverter.
Check if appropriate noise control measures have been implemented (e.g.
correct grounding and routing of control and main circuit wires and
communications cable).
Î Improve noise control.