maxon EC motor
EC 45 4-pol o45 mm, brushless, 200 Watt, Πapproved
M 1:2
Stock program
Standard program
Special program (on request)
Order Number
with encoder
266052
252463
252464
48.0
8730
473
8150
237
4.93
4420
84.8
86
48.0
6120
261
5580
297
4.16
4070
54.7
87
48.0
4370
153
3830
308
3.04
2890
27.7
86
0.566
0.172
52.2
183
1.99
4.16
200
0.878
0.350
74.5
128
1.51
3.16
200
1.73
0.686
104
91.6
1.52
3.18
200
Motor Data (provisional)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Values at nominal voltage
Nominal voltage
V
No load speed
rpm
No load current
mA
Nominal speed
rpm
Nominal torque (max. continuous torque)
mNm
Nominal current (max. continuous current)
A
Stall torque
mNm
Starting current
A
Max. efficiency
%
Characteristics
Terminal resistance phase to phase
W
Terminal inductance phase to phase
mH
Torque constant
mNm / A
Speed constant
rpm / V
Speed / torque gradient
rpm / mNm
Mechanical time constant
ms
Rotor inertia
gcm2
Specifications
17
18
19
20
21
22
Operating Range
Thermal data
n [rpm]
Thermal resistance housing-ambient
3.1 K / W
Thermal resistance winding-housing
1.0 K / W
Thermal time constant winding
31.8 s
Thermal time constant motor
1550 s
Ambient temperature
-10 ... +100°C
Max. permissible winding temperature
+125°C
Mechanical data (preloaded ball bearings)
23 Max. permissible speed
10000 rpm
24 Axial play at axial load < 20 N
0 mm
> 20 N
max. 0.14 mm
25 Radial play
preloaded
26 Max. axial load (dynamic)
20 N
27 Max. force for press fits (static)
170 N
(static, shaft supported)
5000 N
28 Max. radial loading, 5 mm from flange
140 N Integrated encoder R35i
Connection Encoder (Cable AWG 26)
Other specifications
green
(Pin 1)
Channel A
29 Number of pole pairs
2 yellow
Channel A
(
30 Number of phases
3 red
(Pin 3)
Channel B
31 Weight of motor
1000 g blue
(Pin 4)
Channel B
Protection to
IP54 pink
(Pin 5)
Channel I (Index)
grey
(Pin 6)
Channel I (Index)
Values listed in the table are nominal.
violet
(Pin 7)
Commutation signal S 1
red/blue
(Pin 8)
GND 2
Connection Motor (Cable AWG 18)
black
(Pin 9)
Commutation signal S 2
Cable 1
Motor winding 1
white/green
(Pin 10)
VCC 2
Cable 2
Motor winding 2
grey/pink
(Pin 11)
Commutation signal S 3
Cable 3
Motor winding 3
(Pin 12)
n.c.
white
(Pin 13)
VCC 1
Option
brown
(Pin 14)
GND 1
Temperature monitoring, PTC resistance
R 20°C < 0.3 kW
R 130°C = 7.0 ... 35 kW
168
Comments
Continuous operation
In observation of above listed thermal resistance
(lines 17 and 18) the maximum permissible winding
temperature will be reached during continuous
operation at 25°C ambient.
= Thermal limit.
Short term operation
The motor may be briefly overloaded (recurring).
Assigned power rating
Overview on page 16 - 21
Counts per turn
Number of channels
Max. operating frequency (kHz)
Supply voltage
Output signal
Phase shift F (nominal)
Logic state width s
Index pulse width (nominal)
Operating temperature range
Moment of inertia
Recommended Electronics:
DECS 50/5
DEC 50/5
DEC 70/10
DES 50/5
DES 70/10
EPOS 70/10
EPOS2 50/5
Notes
2048
3
200
5V ±5%
RS 422
90°e
min. 45°e
360°e
-10 ... +100°C
£ 3.11 gcm2
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May 2008 edition / subject to change