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MG.10.J8.02 – VLT is a registered Danfoss trade mark
Programmable SyncPos motion controller
System Control 700
When "enable SyncPos" is selected the VLT is con-
trolled by the SyncPos motion controller.
When "disable SyncPos" is selected the VLT is not
controlled by the SyncPos PID controller. It is thus
possible to control the VLT by traditional inputs or
serial interface.
One can select “ENABLE SP. W/O MONI.” as third
setting and thus avoid Option Error 13 (status error
"VLT NOT READY").
Content
Controlled by the option or not
Value range
0 … 2
★
0
0 = enable SyncPos
1 = disable SyncPos
2 = enable SyncPos without VLT monitoring
D.TIME CMP.ACT. 780
The active inverter dead time compensation which
is part of the VLT5000 control algorithm (VCC+) is
causing instability at standstill when working in
closed loop control. The purpose of this parameter
is switching off the active dead time compensation
to avoid instability.
Select OFF when the VLT is controlled from the
SyncPos option in speed, position or synchronizing
control. Select ON if the VLT is operated in open
loop speed control. The inverter dead time com-
pensation is providing better control performance
in open loop control.
Content
active inverter dead time compensation
Compatibility
Not available in VLT5000Flux
Value range
0 … 1
★
0
0 = OFF
1 = ON
Program ID 781
When making customer specific programs that has
to be factory downloaded the type code must be set
in parameter 781 that means the following line must
be included at the beginning of the SyncPos
application program:
SETVLT 781 xy
Where xy is the type code (Byx).
The value of parameter 781 is readout during the
final test in the production and compared with the
type code string of the drive to verify that the correct
program is installed.
Content
The type code number.
Value range
0 … 1000
★
0
Parameter Reference
