NORD Drivesystems BU0510 - Manual (Page 54)

POSICON position control for NORD frequency inverters, SK 530E and above
54 Subject to technical alterations BU 0510 GB-3911
Parameter
{factory setting}
Setting value / Description / Note Device Supervisor Parameter set
P610
Setpoint mode
(Setpoint mode)
SK 530E and
above
S
0 ... 6
{ 0 }
Various methods are available for the specification of the setpoint position. The position can be
specified either as an absolute or a relative position.
0 = Position Array, Position array - specification of absolute position
8
1 = Pos. Inc. Array, Position increment array - specification of the relative
position
8
2 = Synchronous operation, Specification of position by master drive unit (note P509)
9
3 = Bus, specification of absolute position via bus (note P509)
4 = Bus Increment, Specification of relative position via bus, adoption with
synchronisation command (note P509)
5 = Flying Saw, as for synchronous operation, however with additional
"Flying Saw" functionality
9
6 = Auxiliary setpoint source, specification of absolute position within the limits of P615
and P616 via analog signal (P400 or P405 setting "58")
NOTE: For further information please refer to Sections 3.3 and 6.
P611
P Pos. Control
(Position controller P)
SK 530E and
above
S
0,1...100,0 %
{ 5,0 }
The P amplification of the positioning control can be adjusted. Values which are too large cause
overshooting. Values which are too low cause imprecise positioning. The rigidity of the axis when
at a standstill increases with increasing values of P.
P612
Lg. positioning window
(Size position window)
SK 530E and
above
S
0.0..0.1000.0 rev
{ 0,0 }
Slow travel at the end of the positioning process can be enabled by the size of the positioning
window. The positioning window corresponds to the start of slow travel.
In the positioning window or with slow travel, the speed of movement is determined by parameter
P104 (minimum frequency) and not by the maximum or setpoint frequency.
P613 [-01]
...
[-63]
Position
(Position)
SK 530E and
above
S
P (SK 540E and
above)
- 50000,000 …
50000,000 rev.
{ all 0 }
Position array elements [-01] to [-63] (depending on parameter set for SK 540E and above)
Position increment array elements [-01] to [-06] (depending on parameter set for SK 540E and
above)
Arrays for up to 63 (SK 540E and above, up to 4 * 63 = 252) different setpoint values, which can
be selected via the digital inputs or a field bus. With the position setpoint mode "Position Array"
these values correspond to the absolute setpoint positions.
With the position setpoint mode "Position Increment Array" only arrays [01] – [06] are used.
These values correspond to the position increments. With each change of signal from "0" to "1" at
the relevant digital input, the value allocated to the digital input is added to the position setpoint
value. This also applies to control via the bus.
8
Any setpoint from the Bus (if 509, 546, 547,548 are programmed accordingly) is added!
9
Any programmed position increment via the digital inputs or Bus IO Bits is added!