Table 157: Selection for ID600 Motor control mode
Selection
number
Selection name
Description
0
Frequency control
Drive frequency reference is set to output frequency without
slip compensation. Motor actual speed is finally defined by
motor load.
1
Speed control
Drive frequency reference is set to motor speed reference.
The motor speed is remains the same regardless of motor
load. Slip is compensated.
2
Torque control
Speed reference is used as maximum speed limit and the
motor produces torque within speed limit to achieve torque
reference.
3
Speed crtl (closed loop)
Drive frequency reference is set to motor speed reference.
The motor speed remains the same regardless of motor
load. In Closed Loop control mode, speed feedback signal is
used to achieve optimum speed accuracy.
4
Torque crtl (closed loop)
Speed reference is used as the maximum speed limit that
depends on the torque speed limit CL (ID1278) and motor
produces torque within speed limit to achieve torque refer-
ence. In Closed Loop control mode, speed feedback signal is
used to achieve optimum torque accuracy.
601 SWITCHING FREQUENCY 234567 (2.6.9)
If you increase the switching frequency, the capacity of the AC drive reduces. To reduce
capacitive currents in the motor cable, when the cable is long, we recommend that you use a
low switching frequency. To reduce the motor noise, use a high switching frequency.
The range of this parameter depends on the size of the AC drive:
Table 158: Size-dependent switching frequencies
Type
Min. [kHz]
Max. [kHz]
Default [kHz]
0003—0061 NX_5
0003—0061 NX_2
1.0
16.0
10.0
0075—0300 NX_2
1.0
10.0
3.6
0072—0520 NX_5
1.0
6.0
3.6
0041—0062 NX_6
0144—0208 NX_6
1.0
6.0
1.5
VACON · 310
PARAMETER DESCRIPTIONS
8
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