Corrective maintenance
9.1 Replacing inverter components
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
299
Replacing a Control Unit with data backup in Startdrive
Precondition
You have backed up the actual settings of the Control Unit to be replaced to a PC using
Startdrive.
Procedure
To replace the Control Unit, proceed as follows:
1.
Disconnect the line voltage to the Power Module and (if installed) the external 24 V
supply or the voltage for the digital outputs of the Control Unit.
2.
Remove the signal cables of the Control Unit.
3.
Remove the defective Control Unit.
4.
Mount the new Control Unit on the Power Module.
5.
Reconnect the signal cables of the Control Unit.
6.
Connect up the line voltage again.
7.
Open the right project for the drive in the PC.
8.
Select "Load to device".
9.
Connect Startdrive online with the drive.
The inverter signals faults after the download. Ignore these faults, as they will be
automatically acknowledged by the following steps.
10.Press the "Start safety commissioning" button.
11.Enter the password for the safety functions.
12.Confirm the prompt for saving your settings (copy RAM to ROM).
13.Disconnect the online connection.
14.Switch off the inverter supply voltage.
15.Wait until all LEDs on the inverter go dark.
16.Switch on the inverter supply voltage again.
17.Perform a reduced acceptance test, see section: Reduced acceptance after component
replacement and firmware change (Page 315).
You have replaced the Control Unit and transferred the safety function settings from the PC
to the new Control Unit.