Standard DD Motor

Uses own technology to domestically produce motors, drives, and encoders
Optimized for low-speed, high-torque and high-precision operation
- Provides power connection for the connection of DC-Link Terminal
- Compact size and easy wiring (Compared to the 3-phase AC Reactor)
- Provides connection for DC input (PI, N)
Reduced cogging torque and optimized torque design
- Optimal ratio of the permanent magnet and coil/slot selected through electromagnetic analysis
- Uses multiple permanent magnets to reduce torque ripple and to maximize torque
- Uses a permanent magnet of high-energy rare earth elements (Nd-Fe-B)
Using the high-performance rotary optical encoder that adopts the Biss protocol
- Resolution of 1,048,576 CPR (20bit Single turn)
- Uses our own encoder technology to reduce the cost and shorten the delivery time
Compatible with our L7 Series AC Servo Drive (3phase AC 220V)
- Both standard I/O type (serial communication supported) and network type (EtherCAT) applicable
- No backlash impact
- High-precision operation and shortened installation time
- Smooth rotary motion
- Reduced noise

Motor Designation	MDM-DB□□D□□H-I	MDM-DC□□D□□H-I	MDM-DD□□D□□H-I	MDM-DE□□D□□H-I	MDM-DF□□G□□H-I	MDM-DG□□S□□H-I
Flange Size	mm	Ø135	Ø175	Ø230	Ø290	Ø360	Ø380
Rated Output	W	63	126	188	126	251	377	251	461	712	838	1,257	1,728	2,513	1,728
Rated Torque	N-m	3	6	9	6	12	18	12	22	34	40	60	110	160	330
Max Torque	N-m	9	18	27	18	36	54	36	66	102	120	180	330	480	1,000
Rated Current	Arms	1.12	1.46	2.63	1.48	2.41	3	2.58	3.33	5.72	5.3	8.33	9.48	14.6	12
Max Current	Arms	3.36	4.38	7.89	4.44	7.23	9	7.74	9.99	17.16	15.9	24.99	28.44	43.8	36
Rated Speed	rpm	200	200	200	200	150	50
Max Speed	rpm	500	500	500	500	500	400	500	400	400	300	300	250	250	100
Constant of Torque	N-m/Arms	2.76	4.25	3.57	4.18	5.13	6.12	4.8	6.81	6.13	7.77	7.42	11.95	11.29	-
Inertia	kg-m2 10-4	11.56	18.42	26.02	45.83	70.37	94.91	94.7	141.1	190.7	427.2	587.9	2507	3457	6449
Allowable Load Inertia Ratio	30 times of motor inertia	15 times of motor inertia	15 times of motor inertia	3 times of motor inertia
Power Rate	kW/S	15.68	42.35	70.43	13.18	52.71	118.59	26.6	71.02	140.7	51.36	96.68	85.9	145.4	169.1
Angular acceleration	rad/s2	191.2	141.6	127.7	455.03	323.9	280.3	450.9	309.6	241.5	778.35	619.1	1281.13	1101.4	-
Positioning accuracy	arc-sec	±30
Positioning repeatability	arc-sec	±1.3
Axialrun-out	mm	0.015
Radialrun-out	mm	0.03
Allowable Thrust Load	N	1500	3300	4,000	1,100	15,000	21,000
Max. Instantaneous	N-m	40	70	93	250	350	450
Encoder Type	20-bit single turn serial encoder (Biss/Absolute
Weight(Approx.)	kg	6.3	7.2	9.2	8.7	10.6	12.6	17.3	19.6	21.9	28.2	35	54	70.3	162
Working Environment	Ambient Temp	Ambient temperature: 0~40[ ] / storage : -20~60[ ]
Ambient Humidity	20~80[%] RH(avoid dew-condensation)
Atmosphere	Avoid direct sunlight, No corrosive gas, Inflammable gas, Oil mist, or Dust

Motor Designation

MDM-DB□□D□□H-I

MDM-DC□□D□□H-I

MDM-DD□□D□□H-I

MDM-DE□□D□□H-I

MDM-DF□□G□□H-I

MDM-DG□□S□□H-I

Applicable Drive

L7□A001□

L7□A002□

L7□A004□

L7□A002□

L7□A004□

L7□A008□

L7□A004□

L7□A008□

L7□A010□

L7□A020□

L7□A035□

L7□A020□

Flange Size

Ø135

Ø175

Ø230

Ø290

Ø360

Ø380

Rated Output

126

188

126

251

377

251

461

712

838

1,257

1,728

2,513

1,728

Rated Torque

N-m

110

160

330

Max Torque

N-m

102

120

180

330

480

1,000

Rated Current

Arms

1.12

1.46

2.63

1.48

2.41

2.58

3.33

5.72

5.3

8.33

9.48

14.6

Max Current

Arms

3.36

4.38

7.89

4.44

7.23

7.74

9.99

17.16

15.9

24.99

28.44

43.8

Rated Speed

rpm

200

150

Max Speed

rpm

500

400

500

400

300

250

100

Constant of Torque

N-m/Arms

2.76

4.25

3.57

4.18

5.13

6.12

4.8

6.81

6.13

7.77

7.42

11.95

11.29

Inertia

kg-m2 10-4

11.56

18.42

26.02

45.83

70.37

94.91

94.7

141.1

190.7

427.2

587.9

2507

3457

6449

Allowable Load Inertia Ratio

30 times of motor inertia

15 times of motor inertia

3 times of motor inertia

Power Rate

kW/S

15.68

42.35

70.43

13.18

52.71

118.59

26.6

71.02

140.7

51.36

96.68

85.9

145.4

169.1

Angular acceleration

rad/s2

191.2

141.6

127.7

455.03

323.9

280.3

450.9

309.6

241.5

778.35

619.1

1281.13

1101.4

Positioning accuracy

arc-sec

±30

Positioning repeatability

arc-sec

±1.3

Axialrun-out

0.015

Radialrun-out

0.03

Allowable Thrust Load

1500

3300

4,000

1,100

15,000

21,000

Max. Instantaneous

N-m

250

350

450

Encoder Type

20-bit single turn serial encoder (Biss/Absolute

Weight(Approx.)

6.3

7.2

9.2

8.7

10.6

12.6

17.3

19.6

21.9

28.2

70.3

162

Working Environment

Ambient Temp

Ambient temperature: 0~40[ ] / storage : -20~60[ ]

Ambient Humidity

20~80[%] RH(avoid dew-condensation)

Atmosphere

Avoid direct sunlight, No corrosive gas, Inflammable gas, Oil mist, or Dust

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Standard DD Motor

Features

Specification

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F Series