31
Configuration and adjustment variables
Modbus
address
CANopen
address
Code
Read/
Write
Name/Description/Possible values
9607
2042 / 8
UFt
R/WS
Selection of the type of voltage/frequency ratio
Factory setting: 2
0 = "L": Constant torque for motors connected in parallel or special motors
1 = "P": Variable torque for pump and fan applications
2 = "n": Sensorless flux vector control for constant torque applications
3 = "nLd": Energy saving, for variable torque applications not requiring high dynamics (behaves
in a similar way to the P ratio at no load and the n ratio on load).
3107
2001 / 8
nrd
R/WS
Noise reduction
Factory setting: 1
0 = "nO": Fixed frequency
1 = "YES": Frequency with random modulation
Random frequency modulation helps to prevent any resonance which may occur at a fixed
frequency.
3102
2001 / 3
SFr
R/W
Switching frequency
Unit: 0.1 kHz
Factory setting: 40
Adjustment range: 20 to 160
The frequency can be adjusted to reduce the noise generated by the motor.
If the frequency has been set to a value higher than 4 kHz, in the event of excessive
temperature rise, the drive will automatically reduce the switching frequency and increase it
again once the temperature has returned to normal.
3103
2001 / 4
tFr
R/WS
Maximum output frequency
Unit: 0.1 Hz
Factory setting: if BFR = 50: 600 if BFR = 60: 720
Adjustment range: 100 to 5000
9101
203D / 2
SrF
R/WS
Suppression of the speed loop filter
Factory setting: 0
0 = "nO": The speed loop filter is active (helps to prevent the reference being exceeded).
1 = "YES": The speed loop filter is suppressed (in position control applications, this reduces the
response time and the reference may be exceeded).
8001
2032 / 2
SCS
R/WS
Saving the configuration
Factory setting: 0
0 = "nO": Function inactive
2 = "Str1": Saves the current configuration (but not the result of auto-tuning) to EEPROM.
SCS automatically switches to nO as soon as the save has been performed. This function is
used to keep another configuration in reserve, in addition to the current configuration.
When drives leave the factory the current configuration and the backup configuration are both
initialized with the factory configuration.
If the remote display terminal option is connected to the drive, the following additional selection
options will appear:
11 = "FIL1"
12 = "FIL2"
13 = "FIL3"
14 = "FIL4"
FIL1, FIL2, FIL3, FIL4 are files available in the remote display terminal’s EEPROM memory for
saving the current configuration. They can be used to store between 1 and 4 different
configurations which can also be stored on or even transferred to other drives of the same
rating.
SCS automatically switches to nO as soon as the save has been performed.