Bus bars connecting to rectifier section of the drive
9. Once the mains bus bars are connected, the lower covers on both the LCL and rectifier sections can be reinstalled.
10. A control wire connection will need to be made between the filter section and the drive section. It will consist of two connectors which will plug
into one another near the upper shelf of the LCL cabinet. See description below.
11. The doors can now be closed and locked. The drive is ready for operation.
4.3.4 Control Wire Connection between Drive and Filter
In order to make the filter start when the drive starts, the control cards of the different sections are connected. For D and E frames these connections
and the corresponding programming of the drive are already made at the factory. After assembling the two sections of the F frame, the following
connections must be made:
1. Connect terminal 20 on the filter control card to terminal 20 on the drive control card. For information on how to connect control wires, see the
Electrical Installation
chapter.
2. Connect terminal 18 on the filter to terminal 29 on the drive.
3. Set par. 502
Terminal 29 Mode
on the drive LCP to [1], Output. See chapter
How to Operate the Low Harmonic Drive
for information on how
to use the LCP.
4. Set par. 5-31,
Terminal 29 Digital Output
to [5] VLT Running.
5. Push the Auto ON button on the filter LCP
NB!
For D and E frames this procedure is not necessary upon reception of the unit. However, if a factory reset is performed the unit must
be reprogrammed as specified above.
4 How to Install
VLT AQUA Low Harmonic Drive Operating In-
structions
28 MG.20.T1.02 - VLT
®
is a registered Danfoss trademark
4
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