NORD Drivesystems BU0700 - Manual (Page 88)

NORDAC SK 700E Operating Manual
88 Subject to technical alterations BU 0700 GB-1411
5.1.6 Extra functions
Parameter Setting value / Description / Note Available with option
P503 Leading function output always visible
0 ... 8
[ 0 ]
To use the Master function output the source of FI control must be selected in P509. Only the master
frequency (setpoint 1 and control word) is transferred with Mode 1, while the actual values selected in
P543, P544 and P545 are transferred in Mode 2.
In Mode 3 a 32Bit actual position and a 16Bit setpoint speed (after ramp) is output. Mode 3 is required
for synchronous control with the PosiCon option.
Mode 4 can be used for curve control in torque-coupled vehicles. The status word (1
st
word), the actual
setpoint frequency before the speed ramp (2 nd word), the actual torque current standardised to the
torque limit (3
rd
word) and the actual frequency without slip (4
th
word) are transmitted.
0 = Off
1 = USS mode 1
2 = CAN mode 1
up to 250kBaud
3 = USS mode 2
4 = CAN mode 2
up to 250kBaud
5 = USS mode 3
6 = CAN mode 3
7 = USS mode 4
8 = CAN mode 4
Note: Each USS mode prevents communication with a PC and NORDCON.
P504 Pulse frequency always visible
from 1.5 to 7.5 kW
3.0 ... 20.0 kHz
[ 6.0 ]
The internal pulse frequency for actuating the power component can be changed with this parameter. A
high set value leads to less noise from the motor, but also to higher EMC radiation.
Note: The suppression level limit curve A is reached with the setting of 6kHz.
I
2
t- characteristic curve FI,
raising the pulse frequency
leads to a reduction of the
output current against time.
t sec ( )
0.8 1 1.2 1.4 1.6 1.8 2 2.2
0
30
60
90
120
150
180
20 kHz 16 kHz 10 kHz <=6kHz
x Inenn

from 11 to 37 kW
3.0 ... 16.0 kHz
[ 6.0 ]
11-37kW: Adjustable between 3 and 16kHz, standard 6kHz (> 6kHz power reduction in continuous
operation)
from 45 to 160 kW
3.0 ... 8.0 / 4.0 kHz
[ 4.0 ]
45-110kW: Adjustable between 3 and 8kHz, standard 4kHz (> 4kHz power reduction in continuous
operation)
132kW/160kW: only 4kHz can be set