Brushless Motors

EA090A 90mm Brushless DC Motor

The EA090A series brushless motor is a high torque model brushless motor designed in a NEMA 34 package with an IP65 rating. It is offered in 3 motor lengths with continuous torque from 1.8 - 4.6 Nm.

Features:

Speeds up to 6,000 RPM possible
DC bus voltage up to 325 Vdc
NEMA 34 package
Five standard windings
4 Pole Rare Earth design

Specifications +

MOTOR DATA	Units	EA090A-1	EA090A-2	EA090A-3
Max DC Terminal Voltage	V	325	325	325
Max Speed (Mechanical)	rpm	6000	6000	6000
Continuous Stall Torque	Nm	1.8	3.4	4.7
Continuous Stall Torque	oz-in	260	490	670
Peak Torque (Maximum)	Nm	9.5	18	25
Peak Torque (Maximum)	oz-in	1300	2500	3500
Rotor Inertia	kg m2	0.00011	0.0002	0.00029
Rotor Inertia	oz-in-s2	0.016	0.029	0.042
Motor Weight	g	3600	5000	6500
Motor Weight	oz	130	180	230

Dimensional Drawings +

Performance Curves +

EA090A-1 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

EA090A-2 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

EA090A-3 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

NOTE: All values specified at 25°C ambient temperature. Peak values are theoretical and for reference only.

Winding Performance Data +

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EA090A-1	Units
Rated Voltage	V	152	305	152	305	305
Rated Torque	Nm	1.7	1.5	1.7	1.7	1.7
Rated Torque	oz-in	240	220	240	240	250
Rated Speed	rpm	6000	6000	6000	6000	5160
Rated Current	A	11	8.7	8.7	6.2	3.7
Rated Power	W	1000	960	1100	1100	940
No Load Speed	rpm	6000	6000	6000	6000	5840
No Load Current	A	0.35	0.31	0.28	0.20	0.12
Torque Constant	Nm/A	0.165	0.191	0.207	0.289	0.497
Torque Constant	oz-in/A	23.4	27.0	29.3	41.0	70.3
Voltage Constant	V/krpm	17.3	20.0	21.7	30.3	52.0
Terminal Resistance	Ω	0.760	1.12	1.14	2.26	6.77
Inductance	mH	1.91	2.60	2.99	5.86	17.35
Peak Current	A	60	50	50	35	21

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EA090A-2	Units
Rated Voltage	V	152	152	305	305	305
Rated Torque	Nm	2.9	3.0	2.7	3	3.1
Rated Torque	oz-in	400	420	390	420	440
Rated Speed	rpm	6000	6000	6000	5700	5560
Rated Current	A	19	17	10	6.5	6.5
Rated Power	W	1800	1900	1700	1800	1800
No Load Speed	rpm	6000	6000	6000	6000	5850
No Load Current	A	0.61	0.51	0.34	0.21	0.20
Torque Constant	Nm/A	0.161	0.193	0.286	0.484	0.497
Torque Constant	oz-in/A	22.9	27.3	40.6	68.6	70.3
Voltage Constant	V/krpm	16.9	20.2	30.0	50.7	52.0
Terminal Resistance	Ω	0.240	0.350	0.820	2.14	2.14
Inductance	mH	0.81	1.17	2.63	7.32	7.32
Peak Current	A	120	100	65	39	39

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EA090A-3	Units
Rated Voltage	V	305	152	305	305	305
Rated Torque	Nm	2.8	2.9	2.9	3.6	4.1
Rated Torque	oz-in	390	420	420	510	580
Rated Speed	rpm	6000	5980	6000	4880	3790
Rated Current	A	16	13	9.8	6.8	6.1
Rated Power	W	1700	1800	1800	1900	1600
No Load Speed	rpm	6000	5980	6000	5000	4000
No Load Current	A	1.0	0.8	0.58	0.30	0.21
Torque Constant	Nm/A	0.194	0.242	0.334	0.581	0.726
Torque Constant	oz-in/A	27.4	34.3	47.3	82.2	103
Voltage Constant	V/krpm	20.3	25.3	35.0	60.8	76.0
Terminal Resistance	Ω	0.200	0.290	0.550	1.66	2.64
Inductance	mH	0.71	1.11	2.18	6.42	10.04
Peak Current	A	130	110	80	45	36

Wiring Diagram +

As viewed from the back side
Motor Connector MS3112E14-8P
Pin	Signal
1	Phase R
2	Phase S
3	Phase T
4	Case Ground
A	N/C
B	N/C
C	N/C
D	N/C

As viewed from the back side
Sensor and Encoder Connector MS3112E14-19P
Pin	Signal
A	Thermostat
B	Thermostat
C	Hall B
D	Encoder Channel Z
E	Encoder Channel Z¯
F	Encoder Channel A
G	Encoder Channel A¯
H	Encoder GND
J	Hall GND
K	Encoder +5 VDC
L	Hall +5 VDC
M	Hall A
N	Encoder Channel B
P	Encoder Channel B¯
R	Hall C
S	N/C
T	N/C
U	N/C
V	N/C

Encoders +

Q Encoder
The Q & V high performance incremental encoders are transmissive devices with integrated bearing and isolating spring mount. The encoders are identical except for the mounting spring is configured for different motors.

Features:

Resolutions from 1000 to 5000
Differential line driver is standard
Frequency response to 500 kHz
Rugged mechanical design
Good for higher temperature
Shielded cable

Specifications

ENCODER DATA	SYMBOL	UNITS	Q1, Q3, Q5, Q8
Available Resolutions	-	-	1000, 2000, 2500, 5000
Output	-	-	2-Channel Quadrature with Index
Output Interface	-	-	TTL Compatible
Supply Voltage	V_cc	VDC	4.75 to 5.25
Supply Current	I_cc	mA	125 max
Max. Operating Frequency	f_max	kHz	500
Operating Temperature	θ_max	°C	-20 to +100

Dimensional Drawings

Connection Chart

PIN	COLOR	Q
1	Red	V_cc
2	Black	Encoder Ground
3	Brown	Channel A
4	White	Channel A̅
5	Blue	Channel B
6	Green	Channel B̅
7	Orange	Index I
8	Yellow	Index I̅
N/C	Black / White	Case Ground
N/C	Drain Wire	Cable Shield

Recommended Encoder Data Sheets
Q Encoder Data Sheet pdf

Alternate Encoder Data Sheets
C Encoder Data Sheet pdf

Brakes +

B5 Brake
The B5 power off, fail safe holding brake is a NEMA34 flange mount version designed to mount directly on the front of Pittman NEMA34 motors without adapter. The B5 is designed to hold a load in position when power is removed from the motor and brake. This bolt on brake has a holding torque of 1.7 Nm (15 Lb-in).

Features:

Holding torque of 1.7 Nm
NEMA34 face mount with larger ½” shaft
24Vdc

Specifications

BRAKE DATA	UNITS	B5
Applied Voltage	Vdc	24
Holding Torque	Nm	1.695
Holding Torque	lb-in	15
Current	A	0.37
Resistance	Ohms	65
Inertia	Kg-m²	3.18E-05
Inertia	oz-in-sec²	0.0045
Weight	Kg	1.3
Weight	Lbs	2.9

Dimensional Drawings

DIMENSIONS - inches (mm)

Model	B5
A (3)	3.250 (82.55)
B (4x)	0.222 (5.64)
C (2)	18.0 (457.0)
H (3)	1.58 (40.13)
L (1)	2.58 (65.53)
U (1)	0.4997 (12.69)
U2 (3)	0.145 (3.68)
AH (3)	1.16 (29.46)
AJ (3)	3.875 (98.43)
AK (1)	2.875 (73.03)
BB (3)	0.10 (2.54)
Notes:
All Brake Data is at 20 degrees C
(1) Maximum Values, (2) Minimum Values, (3) Nominal, (4x) 4 places

Recommended Brake Data Sheets
B5 Brake Data Sheet pdf

Drives +

Recommended Drives
BGE6050