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maxon flat motor

EC 90 flat Æ90 mm, brushless, 90 Watt

Connector:
39-28-1083
MOLEX
Stock program
Standard program
Special program (on request)

M 1:2

Order Number

with Hall sensors

323772

244879

24.0
3190
539
2650
387
5.39
4670
66.2
83

48.0
2080
130
1640
494
2.12
4530
20.9
85

0.363
0.264
70.5
135
0.697
22.3
3060

2.30
2.50
217
44.0
0.466
14.9
3060

Motor Data
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
1.89 K / W
Thermal resistance winding-housing
2.99 K / W
Thermal time constant winding
52.6 s
Thermal time constant motor
281 s
Ambient temperature
-40 ... +100°C
Max. permissible winding temperature
+125°C

Mechanical data (preloaded ball bearings)
23 Max. permissible speed
5000 rpm
24 Axial play at axial load < 15 N
0 mm
> 15 N
0.14 mm
25 Radial play
preloaded
26 Max. axial load (dynamic)
12 N
27 Max. force for press fits (static)
150 N
(static, shaft supported)
8000 N
28 Max. radial loading, 7.5 mm from flange
30 N maxon Modular System
Other specifications
29 Number of pole pairs
30 Number of phases
31 Weight of motor

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

Planetary Gearhead
Æ52 mm
12 4 - 30 Nm
3 Page 244
648 g

Values listed in the table are nominal.
Connection
Pin 1
Hall sensor 1
Pin 2
Hall sensor 2
Pin 3
4.5 ... 24 VDC
Pin 4
Motor winding 3
Pin 5
Hall sensor 3
Pin 6
GND
Pin 7
Motor winding 1
Pin 8
Motor winding 2
Wiring diagram for Hall sensors see page 29
Cable
Connection cable Universal, L = 500 mm 339380
Connection cable zu EPOS, L = 500 mm 354045
May 2009 edition / subject to change

Recommended Electronics:
DECS 50/5
Page 288
DEC 50/5
289
DECV 50/5
295
DEC 70/10
295
EPOS 24/5
303
EPOS 70/10
303
EPOS P 24/5
306
Notes
20

maxon EC motor

199


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