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Product details
The EC121A series brushless motor is a high torque brushless motor designed with NEMA 48 packaging. It has 4 motor lengths to choose from, with continuous torque ranging from 3.0-6.5 Nm.
characteristic:
characteristic:
Video:
How to create motor curves and how to use them
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specifications+
MOTOR DATA Units EC121A-1 EC121A-2 EC121A-3 EC121A-4 Max DC Terminal Voltage V 325 325 325 325 Max Speed (Mechanical) rpm 4000 4000 4000 4000 Continuous Stall Torque Nm 3.0 3.9 4.5 6.6 Continuous Stall Torque oz-in 430 550 630 930 Peak Torque (Maximum) Nm 9.4 12 14 20 Peak Torque (Maximum) oz-in 1300 1700 2000 2800 Rotor Inertia kg m2 0.00079 0.0012 0.0017 0.0021 Rotor Inertia oz-in-s2 0.11 0.18 0.24 0.30 Motor Weight g 7100 9900 12000 15000 Motor Weight oz 250 350 440 530 -
dimension+
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Performance Curve+
EC121A-1 speed torque performance curve
S. O.A.C.=safe working area for continuous operation
EC121A-2 speed torque performance curve
S. O.A.C.=safe working area for continuous operation
EC121A-3 speed torque performance curve
S. O.A.C.=safe working area for continuous operation
EC121A-4 speed torque performance curve
S. O.A.C.=safe working area for continuous operation
Note: All values were measured at an ambient temperature of 25 ° C. The peak value is a theoretical value and is for reference only. -
Winding performance data+
Page-2c2060cb-9aa2-4ebf-b0ba-a3093067d88f EC121A-1 Units Rated Voltage V 60.0 76.0 76.0 121 152 152 305 Rated Torque Nm 2.2 2.3 2.4 2.3 2.3 2.3 2.3 Rated Torque oz-in 320 320 330 330 330 330 320 Rated Speed rpm 4000 4000 4000 4000 4000 4000 4000 Rated Current A 28 25 21 18 14 11 8.5 Rated Power W 930 950 990 960 970 960 960 No Load Speed rpm 4000 4000 4000 4000 4000 4000 4000 No Load Current A 1.2 1.0 0.82 0.70 0.57 0.45 0.34 Torque Constant Nm/A 0.0936 0.105 0.129 0.152 0.187 0.234 0.315 Torque Constant oz-in/A 13.3 14.9 18.3 21.5 26.5 33.1 44.6 Voltage Constant V/krpm 9.80 11.0 13.5 15.9 19.6 24.5 33.0 Terminal Resistance Ω 0.0500 0.0700 0.100 0.140 0.220 0.340 0.610 Inductance mH 0.27 0.34 0.51 0.72 1.09 1.70 3.10 Peak Current A 110 99 84 69 57 45 33 Page-d7d424ec-955b-40df-8a89-6be1f6df39c5 EC121A-2 Units Rated Voltage V 76.0 76.0 152 152 305 305 Rated Torque Nm 2.1 2.3 2.3 2.3 2.3 2.4 Rated Torque oz-in 300 320 330 330 320 330 Rated Speed rpm 4000 4000 4000 4000 4000 4000 Rated Current A 19 18 14 11 7.3 5.3 Rated Power W 880 950 980 970 960 990 No Load Speed rpm 4000 4000 4000 4000 4000 4000 No Load Current A 1.2 1.1 0.73 0.62 0.41 0.29 Torque Constant Nm/A 0.131 0.150 0.206 0.244 0.374 0.524 Torque Constant oz-in/A 18.6 21.2 29.2 34.5 53.0 74.2 Voltage Constant V/krpm 13.7 15.7 21.6 25.5 39.2 54.9 Terminal Resistance Ω 0.0700 0.0800 0.150 0.210 0.510 0.950 Inductance mH 0.32 0.42 0.80 1.13 2.67 5.24 Peak Current A 96 90 66 57 36 26 Page-44998b40-3942-48dc-bcd4-21775bf3d9db EC121A-3 Units Rated Voltage V 76.0 152 152 305 305 305 Rated Torque Nm 2.4 2.7 2.7 2.6 2.6 2.7 Rated Torque oz-in 340 380 390 370 380 390 Rated Speed rpm 4000 4000 4000 4000 4000 4000 Rated Current A 16 15 11 9.4 7.6 5.6 Rated Power W 1000 1100 1100 1100 1100 1100 No Load Speed rpm 4000 4000 4000 4000 4000 4000 No Load Current A 0.79 0.69 0.51 0.44 0.35 0.25 Torque Constant Nm/A 0.181 0.207 0.285 0.330 0.413 0.573 Torque Constant oz-in/A 25.6 29.3 40.3 46.8 58.6 81.1 Voltage Constant V/krpm 19.0 21.7 29.8 34.6 43.3 60.0 Terminal Resistance Ω 0.0900 0.110 0.200 0.280 0.430 0.790 Inductance mH 0.46 0.60 1.14 1.13 2.42 4.58 Peak Current A 81 75 57 48 39 28 Page-bd372042-b3e3-4efb-9df1-afe1 EC121A-4 Units Rated Voltage V 152 305 305 Rated Torque Nm 4.7 4.7 4.7 Rated Torque oz-in 660 660 660 Rated Speed rpm 4000 4000 4000 Rated Current A 24 15 12 Rated Power W 2000 2000 2000 No Load Speed rpm 4000 4000 4000 No Load Current A 1.1 0.65 0.53 Torque Constant Nm/A 0.224 0.365 0.449 Torque Constant oz-in/A 31.8 51.7 63.6 Voltage Constant V/krpm 23.5 38.2 47.0 Terminal Resistance Ω 0.130 0.340 0.520 Inductance mH 0.93 1.60 3.72 Peak Current A 100 63 51 -
Wiring diagram+
Motor Leads (12 AWG)
Pin
Color Signal 1 Red
Phase R 2 White Phase S 3 Black Phase T 4 Bare Case Ground
Hall Sensor Leads (26 AWG)
Pin
Color Signal 1 Red Hall +5-15VDC
2 Black
Hall GND
3 Brown Hall A
4 Orange Hall B
5 Yellow Hall C
6 Bare Shield
Note: EC121A may be equipped with a C-Series Commutation Encoder. See Encoder section for wire color and signal designations. -
encoder+
C encoder
The C&D high-performance incremental encoder is a transmissive device with motor commutation output, integrated bearings, and isolation spring brackets. Except for the additional motor commutation signal, these encoders are identical to the Q and V encoders.
characteristic:
specificationsEncoder data symbol unit C1、C3、C5、C8 Available resolutions - - 1000, 2000, 2500, 5000 output - - 2-channel orthogonal with index output interface - - TTL compatible Differential line driver correct Reversing pole 4-pole supply voltage Vcc VDC 4.75 to 5.25 Power supply current Icc mA Maximum 125 Maximum operating frequency fmaximum kHz 500 operation temperature θmaximum °C -20 to+100 Encoder data symbol unit CA、CC、CE、CH Available resolutions - - 1000, 2000, 2500, 5000 output - - 2-channel orthogonal with index output interface - - TTL compatible Differential line driver correct Reversing pole 8 poles supply voltage Vcc VDC 4.75 to 5.25 Power supply current Icc mA Maximum 200 Maximum operating frequency fmaximum kHz 500 operation temperature θmaximum °C -20 to+100
dimension
CONNECTION DIAGRAMcolour C model red Vcc black Encoder grounding brown Channel A white Channel A? blue Channel B green Channel B? orange Index I yellow Index I? Purple; Output U grey Output U? White/Brown OUTPUT V White/Red Output V? White/Orange Output W White/Yellow Output W? Black/White Case Ground drain wire Cable shield
Recommended Encoder Data Sheet
C Encoder Data Sheet PDF -
Driver+
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