208 Actual signals and parameters
2503 CRIT SPEED 1
HI
Defines the maximum limit for critical output frequency
range 1
0.0 Hz
0.0…500.0 Hz Limit in Hz. The value cannot be below the minimum
(parameter 2502 CRIT SPEED 1 LO).
1 = 0.1 Hz
2504 CRIT SPEED 2
LO
See parameter 2502 CRIT SPEED 1 LO.0.0Hz
0.0…500.0 Hz See parameter 2502.1 = 0.1Hz
2505 CRIT SPEED 2
HI
See parameter 2503 CRIT SPEED 1 HI.0.0Hz
0.0…500.0 Hz See parameter 2503.1 = 0.1Hz
2506 CRIT SPEED 3
LO
See parameter 2502 CRIT SPEED 1 LO.0.0Hz
0.0…500.0 Hz See parameter 2502.1 = 0.1Hz
2507 CRIT SPEED 3
HI
See parameter 2503 CRIT SPEED 1 HI.0.0Hz
0.0…500.0 Hz See parameter 2503.1 = 0.1Hz
26 MOTOR
CONTROL
Motor control variables
2603 IR COMP
VOLT
Defines the output voltage boost at zero speed (IR
compensation). The function is useful in applications with a
high break-away torque when vector control cannot be
applied.
To prevent overheating, set IR compensation voltage as low
as possible.
The figure below illustrates the IR compensation.
Type
dependent
0.0…100.0 V Voltage boost 1 = 0.1 V
All parameters
No. Name/Value Description Def/FbEq
A
B
A = IR compensated
B = No compensation
Typical IR compensation values:
P
N
(kW) 0.37 0.75 2.2 4.0 7.5
200…240 V units
IR comp (V) 8.4 7.7 5.6 8.4 N/A
380…480 V units
IR comp (V) 14 14 5.6 8.4 7
2603
2604
Motor
voltage
f (Hz)
To Next Page
Loading...
