Ch.349
——— Inspection procedure, component identification and standard specification ———
3.3.6. Accuracy
[°C]
[V]
[°C]
Speed limit /Absolute max speed [rpm]
Digital reference resolution [rpm]
Field oriented (with sinusoidal Encoder):
accuracy [%]
control range [rpm]
max bandwidth [rad/s]
Field oriented (with digital Encoder):
speed feedback resolution [rpm]
accuracy [%]
control range [rpm]
max bandwidth [rad/s]
Sensorless vector control:
speed feedback resolution [rpm]
control range [rpm]
max bandwidth [rad/s]
Constant V/f control:
accuracy [rpm]
control range [%]
Field oriented - Sensorless:
resolution [rpm]
accuracy [%]
control range [rpm]
min. response time (at load step) [ms]
max bandwidth
[rpm]
300 rad/s[47 Hz]
(1)
> 0.25(for encoder pulses number <1900)
300 rad/s[47 Hz]
(1)
0.25 (for encoder pulses number
³
1900)
typical 0.01%
better than 1:10000
16 bit or 15 bit + sign
linearity via terminals ( 1/2, 3/4,5/6)
- temperature dependent stability error
100 ppm/°C typical
Reference values:
11 bit + sign
± 0.1%offull scale
avy2030
resolution via keypad /Interface bus
resolution via terminals ( 1/2, 3/4,5/6)
8000
0.25
S
P
E
E
D
C
O
N
T
R
O
L
1.3%@2%of Nominal speed
accuracy [%]
speed feedback resolution
£
50 ppm/°C typical
temperature dependent stability error
Internal reference value voltage:
Output frequency:
0.001 Hz at 50 Hz
± 10V, terminals 7 and 8
0.005 Hz at 300 Hz
resolution [Hz]
0.5
typical 0.02%
better than 1:1000
0.002 x Nominal speed
0.3% @ Nominal speed
from 1:50 to 2.5 x Nominal speed
T
O
R
Q
U
E
C
O
N
T
R
O
L
typical 1:1.000
typical 5%
(2)
1÷20
0.8
2.4 krad/s [380 Hz]
depending on motor nominal slip, typ. 1:50
100 rad /s [15,9Hz]
(1)
0.3 x nominal motor slip with automatic slip
compensation
(1) The response time and bandwidth are affected by the load and inertia. These represent limit values.
(2) This value does not include iron losses, mechanical losses and cogging torque. With Rr adaptation enabled.
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