NORD Drivesystems BU0180 - Manual (Page 140)

SK 180E Manual for frequency inverters
140 Pre-series version BU 0180 GB-0914
7 Operating status messages
According to the cause, frequency inverters and technology units generate appropriate messages if they
deviate from their normal operating status. There is a differentiation between warning and error messages.
If the frequency inverter is in the status "Start disabled", the reason for this can also be displayed.
Display of the Technology Unit messages is carried out via parameter (P170). The messages generated for
the frequency inverter are displayed in the corresponding array of parameter (P700).
Frequency inverter start disabled
If the frequency inverter is in the status "Not Ready" or "Start Disabled", the reason for this is indicated in the
third array element of parameter (P700).
Display is only possible with the NORD CON software or the ParameterBox (SK PAR-3H).
Warning messages
Warning messages are generated as soon as a defined limit is reached. However this does not cause the
frequency inverter to switch off. These messages can be displayed via the array element [-02] in parameter
(P700) until the reason for the warning is no longer present or the frequency inverter has gone into a fault
state with an error message.
Error messages
Errors cause the frequency inverters to switch off, in order to prevent a device fault.
The following options are available to reset a fault (acknowledge):
1. Switching the mains off and on again,
2. By an appropriately programmed digital input (P420 = Function 12),
3. by switching of the “enable” on the frequency inverter to Low (if no digital input is programmed for
acknowledgement),
4. by Bus acknowledgement or
5. By P506, the automatic error acknowledgement.
An error message can only be acknowledged if its direct cause is no longer present.
FI / DS LED: This LED (Section 4.1) is dual-colour and can therefore indicate both a ready or an error
status of the FI.
Green indicates the standby status and the presence of mains voltage. During operation
an increasingly rapid flashing code indicates the degree of overload of the FI output.
Red indicates the presence of an error by flashing with a frequency which corresponds to
the number code of the fault (Section 7.2).