NORD Drivesystems BU0220 - Manual (Page 44)

PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE
44 Subject to technical amendments BU 0220 GB-0912
5.1.3 Supplementary parameters (P500)
Parameter
{Factory setting}
Setting value / Description / Note Device Supervisor
Parameter
set
P509 Source Control Word S
0 ... 4
{ 0 }
Selection of the interface via which the FI is controlled.
0 = Control terminals or keyboard control** with the SimpleBox (if (P510)=0), the
ParameterBox or via BUS I/O Bits.
1 = Only control terminals *, the FI can only be controlled via the digital and analog input
signals or via the Bus I/O Bits.
2 = USS control word *, the control signals (enable, rotation direction, etc.) are transferred
via the RS485 interface, the setpoint via the analog input or the fixed frequencies.
3 = System bus *, the control signals (enable, direction of rotation, ...) are transferred via the
system bus (the field bus module and the frequency inverter communicate via the
system bus). I.e. the setting "3" - "System bus" must be selected in parameter (P509)
for control of the frequency inverter via the field bus.
4 = System bus broadcast *
*) Keyboard control (SimpleBox, ParameterBox, PotentiometerBox) is disabled,
parameterisation is still possible.
**) If the communication during keyboard control is interrupted (time out 0.5 sec), the
FI will disable without an error message.
NOTE: For details of the optional bus systems, please refer to the relevant supplementary bus manuals
(BU02x0).
- www.nord.com –
As an alternative to setting the parameter, System Bus can also be selected with DIP switch 3.
P510 ... [-01]
... [-02]
Setpoint source S
0 ... 4
{ [-01] = 0 }
{ [-02] = 0 }
Selection of the setpoint source to be parameterised.
… [-01] = Main setpoint source … [-02] = Subsidiary setpoint source
Selection of the interface via which the FI receives the setpoint.
0 = Auto: The setpoint source is automatically derived
from the setting in the parameter P509 >Control
word source<.
1 = Control terminals, digital and analog inputs
control the frequency, including fixed frequencies
2 = USS
3 = System bus
4 = System bus broadcast
P513 Telegram time-out S
-0.1 / 0.0 /
0.1 ... 100.0 sec
{ 0.0 }
Monitoring function of the active bus interface. Following receipt of a valid telegram, the next
one must arrive within the set period. Otherwise the FI reports an error and switches off with the
error message E010 >Bus Time Out<.
0.0 = Off: Monitoring is switched off.
-0.1 = no error: Even if communication between BusBox and FI is interrupted (e.g. 24V error,
Box removed, etc.), the FI will continue to operate unchanged.
Note:
In BUS mode (e.g.: PROFIBUS DP), monitoring is controlled via parameter (P120). Settings in
parameter (P513) therefore have no effect.
Exception: Setting {-0,1}