50
Technical Data
7
Motor 2250 … BX4 with encoder IE3 L
7.7
Operating data
7.7.1
2250 S
024 BX4 S
024 BX4
IE3 L
Nominal voltage
U
N
24
24
Volt
Terminal resistance, phase-phase
R
5.9
5.9
Output power
1) 2)
P
2 max.
10.3
17.3
W
Efficiency
max.
70.4
75
%
No-load speed
n
o
10 500
6 000
rpm
No-load current
(with shaft ø 3.0 mm)
I
o
0.105
0.072
A
Stall torque
M
H
84.7
149
mNm
Friction torque, static
C
o
0.75
1.2
mNm
Friction torque, dynamic
C
v
1.4 ·10
-4
2.4 ·10
-4
mNm/rpm
Speed constant
k
n
451
259
rpm/V
Back-EMF constant
k
E
2.218
3.86
mV/rpm
Torque constant
k
M
21.1
36.9
mNm/A
Current constant
k
I
0.047
0.027
A/mNm
Slope of n-M curve
n/
M
125.6
41.4
rpm/mNm
Terminal inductance, phase-phase
L
250
240
µH
Mechanical time constant
m
6.97
4.3
ms
Rotor inertia
J
5.3
10
gcm²
Angular acceleration
max.
160
149
·10
3
rad/s²
Thermal resistance
R
th 1
/ R
th 2
1.2 / 10.5
1.2 / 10.5
K / W
Thermal time constant
w1
/
w2
4.2 / 332
4.2 / 424
s
Operating temperature range
-40 … +85
-40 … +85
°C
Shaft bearings
ball bearings, preloaded
Shaft load max.:
– radial at 3 000 rpm
(4 mm from mounting flange)
20
N
– axial at 3 000 rpm
2
N
– axial at standstill
20
N
Shaft play:
– radial
0.015
mm
– axial
=
0
mm
Housing material
stainless steel
Weight
101
117
g
Direction of rotation
electronically reversible
Number of pole paires
2
Recommended values - mathematically independent of each other
Speed up to
2)
n
e max.
12 500
9 200
rpm
Torque up to
1) 2)
M
e max.
15
25
mNm
Current up to
1) 2)
I
e max.
0.84
0.79
A
1)
at 5 000 rpm,
2)
thermal resistance R
th 2
not reduced
Magnetic Encoder
IE3-32 L
IE3-64 L
IE3-128 L
IE3-256 L
Lines per revolution
N
32
64
128
256
Frequency range
1)
, up to
f
15
30
60
120
kHz
Signal output, square wave
2 + 1 index and complementary outputs
channels
Supply voltage
U
DD Enc
4.5 … 5.5
V DC
Current consumption, typical
2)
I
DD Enc
typ. 17, max. 25
mA
Index Pulse width
3)
P
0
90 ± 45
°e
Phase shift, channal A to B
4)
90 ± 45
°e
Inertia of encoder magnet
J
0.08
gcm²
1)
velocity (rpm) = f (Hz) x 60 / N
2)
U
DD Enc
= 5 V: with unloaded outputs
3)
at 5 000 rpm
Notes:
The output signals are TIA-422 compatible.
Examples of Line driver Receivers:
ST26C32ABD (STM), ST26C32IP16 (EXAR), DS26C32AT (NSC).
