Eaton Rapid Link RAMO5, Manual

Page: 213 / 218

12 Error messages
12.3 RASP Error list
Rapid Link 5 · RAMO5 · RASP5 10/19 MN034004EN www.eaton.com
209
PS-trp
05 Overcurrent (Hardware)
• 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 error 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.
O.Volt
06 Overvoltage in DC link
The DC-Link Voltage value can be viewed using parameter P0-20.
P0-36 contains an error register with the last values before the unit was
switched off (scan time: 256 ms).
• 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 delay ramp (P1-
04/P2-13) or use a brake resistor.
• In vector mode (P6-01 = 1): Reduce the speed controller's amplification
(P6-02).
V.Volt
07 Undervoltage in DC link
Note:
Generally, this message will appear when the supply voltage is switched off
on the device and the DC link voltage dies away.
In this case, there is no fault.
If the message appears during operation:
• Check whether the power supply voltage is too low.
• Check all components/devices in the variable frequency drive's feeder
circuit (circuit-breaker, contactor, choke, etc.) to make sure they are
connected properly and have an adequate contact resistance.
O-t
08 Overtemperature at heat sink. The drive is too hot.
The heat sink temperature can be viewed by using P0-21. P0-38 contains an
error register with the last values before the unit was switched off (scan time:
30 s).
• Check to make sure that the variable frequency drive is being operated
within the ambient temperature range specified for it.
• Make sure that cooling air can circulate freely (clearances to neighboring
devices above and below the variable frequency drive).
• The ventilation vent on the device must not be blocked, e.g., by dirt or due
to devices being installed too closely together.
• Reduce the switching frequency with P2-24.
• Reduce the load, if possible.
V-t
09 Under-temperature
The message will appear if the ambient temperature falls below -10 °C.
In order to be able to start the drive, the temperature must be higher than this.
P-dEf
10 The parameters' default settings have been loaded.
• Press the STOP button: The drive can then be reconfigured:
SC-ObS
12 Communication fault with an external operating unit or with a PC.
• Check connections.
F
(
t-dc
13 Excessively high DC link voltage ripple
The DC link voltage ripple can be viewed using P0-16.
An error register with the last values before the unit was switched off contains
P0-37 (scan time: 20 ms).
• Check to make sure that all the mains supply phases are present and that
their voltage balance falls within the permissible tolerance range (3 %.
• Reduce the load if possible.
• If the fault persists, please contact your nearest Eaton sales branch.
Message Error no. Possible cause and remedy