Troubleshooting - Mitsubishi Electric FR-E5NP Instruction Manual

10.TROUBLESHOOTING

If an alarm occurred in the inverter and the inverter and option unit do not function, refer to the following
check points, find the cause from the operation panel indication of the inverter and the LED status of the
option unit, and take an adequate action. If any of the causes does not apply to the alarm, a failure may
have occurred. In that case, contact your sales representative.
Operation
Option Unit
Panel
LED Status
Indication
0.00 Off
E.*** Off/on
* The error code of the inverter enters.
Assumed Cause
Option unit does not
function.
Network is instable.
Network master does not
exist or does not function
properly.
Inverter in error
Check Point
Make sure that the option is fitted properly.
Reset the inverter.
Perform parameter all clear to return the parameters to the
factory settings, and switch power off once, then on again.
Make sure that the network cables between the nodes are
connected properly.
Make sure that the network cables are terminated.
Check the network setting from the Profibus-DP Network
Configuration Software.
Check the other nodes for a network error.
Check the connection and operation of the Profibus-DP
master.
Refer to the inverter manual.
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