KEB COMBIVERT F6 Programming Manual

Motor parameterization
324
© 2022 KEB Automation KG
Example: maximum reachable torque of a synchronous motor depending on the
DC link voltage:
1
2
DC link voltage
DC link voltage
565V
680V
21
1fghfh
1
Figure 76: Maximum torque depending on the DC link voltage for the synchronous motor
If the characteristic shall be adjusted automatically to the actual DC link voltage
can be defined with ds11 bit 2 and 3.
ds11
torque mode
0x240B
Bit
Function
Valu
e
Plaintext
Notes
2…3
Uic de-
pendant
torque
curve
adaption
0
off
no adaption
4
generally on
Adaptation in both speed directions
8
only reduction
Adaption only to lower speeds
12
reduction, on at
FaultReact.
in standard operation only adaption to lower speeds,
while the fault-reaction ramp also to higher speeds
Bit2-3 = 4 "generally on“:
The maximum torque of the motor is generated at this value. The disadvantage is
that an unstable or dynamic changing DC link voltage can cause unsmooth at op-
eration at the limiting characteristic.
Bit2-3 = 8 (only reduction):
This is the recommended setting. The shifting of the characteristic curve to the left
towards lower speeds is carried out, which is physically necessary due to a too low
DC link voltage. A shifting to higher speeds, with higher DC link voltage, does not
take place. That means, the characteristic is only shifted if the DC link voltage is
lower than dr28 "uic reference voltage“.
0
20
40
60
80
100
120
140
160
0 50 100 150 200 250 300
M
n
1
2

KEB COMBIVERT F6 Specifications

General

Brand	KEB
Model	COMBIVERT F6
Category	Controller
Language	English