NORD Drivesystems BU0550 - Manual (Page 78)

PLC logic for NORD SK 54xE frequency inverters
78 BU 0550 GB-0813
4 Frequency inverter details
4.1 Parameters
This section only lists parameters which are directly associated with the PLC function. Please refer to the
frequency inverter manual BU0500 / BU0505 for the full list of parameters.
4.1.1 Operating displays
Parameter
{Factory setting}
Setting value / Description / Note Device Supervisor
Parameter
set
P001
Select of disp.value
(Selection of display value)
0 ...65
{ 0 }
Setting:
…
40 = PLC-Ctrlbox value, Visualisation mode for PLC communication
…
4.1.2 Control / PLC parameters
Parameter
{Factory setting}
Setting value / Description / Note Device Supervisor
Parameter
set
P350
PLC functionality
(PLC functionality)
P
0 … 1
{ 0 }
Setting:
0 = Off: the PLC is not active, control of the frequency inverter is according to the
parameters (P509) and (P510)
1 = On: the PLC is active, control of teh frequency inverter is via the PLC, depending on
(P351). The definition of the main setpoints must be carried out accordingly in
parameter (P553). Auxiliary setpoints (P510[-02]) can still be defined via (P546).
P351
PLC Setpoint selection
(PLC Setpoint selection)
P
0 … 3
{ 0 }
Selection of the source for the control word and main setpoint with active PLC functionality
(P350 = 1). With the settings "0" and "1" definition of the main setpoints is via (P553), however
the definition of the auxiliary setpoints remains unchanged via (P546). This parameter is only
adopted if the frequency inverter is in the state "ready to start".
Setting:
0 = Control word and main setpoint =PLC: The PLC supplies the control word and the
main setpoint, parameters (P509) and (P510[-01]) have no function.
1 = Control word =P509: The PLC supplies the main setpoint, the control word
corresponds to the setting in parameter (P509)
2 = Main setpoint=P510[-01]: The PLC supplies the control word, the source for the main
setpoint corresponds to the setting in parameter (P510[-01])
3 = Control word and main setpoint=P509/P510: The source for the control word and the
main setpoint corresponds to the setting in parameter (P509)/(P510[-01])