JLDD Series Torque Servo Motor

Torque servo motor, commonly known as DD motor, is a kind of permanent magnet synchronous motor with simple structure and direct drive control, which adopts a special current control strategy to make the motor output torque proportional to the drive current, so that high torque accuracy can be obtained and irreversible demagnetization phenomenon can be avoided, so that the mechanical rotation accuracy can be raised to the highest degree and there is no wear error, and the accuracy will not be degraded due to long usage time. It is widely used in high-end machine tools.

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JLDD Series Torque Servo Motor

Detail

Product description

Shape and mounting dimensions

Performance Data

	Symbols	Unit	JLDD-385-640	JLDD-385-850	JLDD-385-1300
Continuous torque	Tc	Nm	290	390	585
Continuous current	Ic	Arms	12	12	18
Continuous torque WC	Tcw	Nm	640	850	1300
Continuous current WC	Icw	Arms	30	29.5	45.1
Blocking torque	Ts	Nm	200	270	405
Blocking current	ls	Arms	8.2	8.3	12.5
Blocking torque WC	Tsw	Nm	440	605	908
Blocking current WC	lsw	Arms	18	18.2	27
Instantaneous torque 1s	Tp	Nm	1100	1550	2420
Instantaneous current 1s	lp	Arms	81	81.5	121
Torque constant	Kt	Nm/Arms	24.2	32.5	32.5
Time constants	Te	ms	8.15	8.16	8.16
Inter-wire resistance (25°)	R25	Q	2.16	3.04	2.02
Inter-wire inductance	L	mH	17.6	24.7	16.5
Polar Number	2p		66	66	66
Inverse potential constant (between lines)	Ke	Vrms/(rad/s)	13.98	18.76	18.76
Motor constant (25°)	Km	Nm/ √W	12.6	15.2	18.67
Thermal resistance	Rth	K/W	0.2	0.15	0.1
Thermal resistance (WC)	Rthw	K/W	0.032	0.024	0.016
Temperature Sensor			3-KTY84/155	3-KTY84/155	3-KTY84/155
Maximum operating voltage		VDc	750	750	750
Rotor moment of inertia	J	Kgm²	0.357	0.454	0.616
Max. speed [continuous torque]		rpm	210	140	140
Max. speed [continuous torque WC]		rpm	135	90	90
Maximum speed [instantaneous torque]		rpm	55	35	35
Rotor mass	Mr	kg	22	27.5	36.7
Stator mass	Ms	kg	29	38	53.5
Stator height	Hs	mm	130	160	210
Rotor height	Hr	mm	71	100	150
Mounting height	H1	mm	30	30	30
Mounting height	H2	mm	32	32	32

Application Scenarios

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Address: No. 6-1, North Zone, Zhongke Innovation Industrial Park, No. 12, Fengchao Street, Weihai Economic and Technological Development Zone, Shandong Province

Tel：0086-631 5925762

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Email：whjuli@126.com