Messages; List Of Messages - Eaton PowerXL DB1 Parameter Manual

4 Messages

4.1 List of messages

The messages are displayed on the connected (optional) keypad.
Table 18: Messages
Status signal Possible cause and remedy
Ready to start. There is no drive enable signal present. There are no error messages present.
Stop
The parameters' default settings have been loaded.
P-dEf
Overcurrent at variable frequency drive output
O-I
Occurs right after switching on the unit:
• Check the cable connection between the variable frequency drive and the motor
• Check the motor for shorted windings and ground faults
Occurs when starting the motor:
• Check whether the motor can rotate freely and make sure that it is not being blocked
mechanically.
• Motor with mechanical brake: Check whether this has been triggered.
• Check the connection configuration (star/delta)
• Check to make sure that the correct rated motor current has been entered in P-08
• Increase the acceleration ramp time (t-acc, P-03) if necessary.
• Reduce the voltage boost with P-11.
Occurs during operation at a constant speed:
• Check whether the motor is overloaded.
Occurs during acceleration/deceleration:
• The ramp times are too short and require too much power.
If P-03 or P-04 cannot be increased, a larger device may be required.
Motor overload. The thermal protection mechanism has tripped as a result of the device being
I. t -trP
run above the rated motor current set with P-08 longer than a specific time.
• Check to make sure that the rated motor current has been entered in P-08.
• Check the motor's connection configuration (e.g., star/delta).
• If the decimal points on the display flash during operation, this means that the unit is being
run in its overload range (> P-08). In this case, use P-03 to make the acceleration ramp longer
or reduce the load.
• Check whether the motor is being blocked mechanically or whether there are any additional
loads.
Overcurrent (Hardware)
PS-trp
• Check the wiring to the motor and the motor itself for short-circuits and ground faults.
• Disconnect the motor cable from the variable frequency drive and switch the variable
frequency drive back on.
• If the fault message still appears, the device needs to be replaced. Before commissioning the
new device, check the system for short-circuits or ground faults that could have caused the
device to fail.
Overvoltage in DC link
O. V olt
• Check to make sure that the supply voltage falls within the range for which the variable
frequency drive is sized.
If the error occurs during deceleration or stopping:
• Extend the deceleration ramp (P-04/P-24).
DB1 Variable Frequency Drives 09/17 MN040034EN www.eaton.com
4 Messages
4.1 List of messages
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