RKI5-3P-230xH | Torque Motors

Drawing

RKI5-3P-230xH drawing — outer diameter 310 f8, centring diameters 300/230/226, primary part height H_P, secondary part height H_S, including distances between housing and cooling inlet/outlet (H_P0/H_P1), axial and right-angle cable screw heights (H_P2/H_P3), and secondary part inner diameters D_SA/D_SN. Magnet configurations R20 and R22, axial cable outlet 2×4G10.

Description

RKI and RKIB are internally running permanent-magnet synchronous torque motors (PMSM) with an integrated secondary part. The primary part is a water-cooled, fully encapsulated laminated iron core stator. On the RKI, the secondary part has permanent magnets integrated into a lamination stack, which provides the magnetic return path; the secondary part can only be centred from the inside on one side using a centring ring and is fixed at the end face of the centring ring. The lamination stack minimises eddy-current losses, so the secondary part heats up less than on the RIB and does not limit the motor speed, enabling higher speeds and mechanical power. The magnet configuration variants R20, R22 and V22 correspond to different cost-effectiveness ratios. The RKI5-3P-230xH is divided into sizes 230×50 to 230×150 according to active height.

Geometric Data

Notes

Tolerance range ±10%. Each column is a "size × magnet configuration" combination. In the type, D×H represents "effective air-gap diameter × active height" (unit mm).

Geometric Data	Symbol	Unit	230×50	230×50	230×75	230×75	230×100	230×100	230×125	230×125	230×150	230×150
Magnet configuration & Winding design
Magnet configuration	—	—	R20	R22	R20	R22	R20	R22	R20	R22	R20	R22
Winding design	—	—	Z2	Z2	Z2	Z2	Z3.3	Z3.3	Z3.3	Z3.3	Z4	Z4
Power cable	—	—	1×4G10	1×4G10	1×4G10	1×4G10	2×4G10	2×4G10	2×4G10	2×4G10	3×4G10	3×4G10
Mass & Height
Mass, secondary part	m_S	kg	9.7	10.2	13.6	14.3	17.4	18.3	21.2	22.4	25.0	26.5
Mass, primary part	m_P	kg	17.4	17.4	24.3	24.3	30.3	30.3	43.3	43.3	49.2	49.2
Height, secondary part	H_S	mm	79	79	104	104	129	129	154	154	179	179
Height, primary part	H_P	mm	95	95	120	120	145	145	170	170	195	195
Distance housing–cooling inlet	H_P0	mm	27	27	31	31	27	27	28	28	29	29
Distance between cooling inlet and cooling outlet	H_P1	mm	39	39	48	48	80	80	109	109	133	133
Height, axial cable screw	H_P2	mm	40.5	40.5	40.5	40.5	40.5	40.5	40.5	40.5	40.5	40.5
Height, right-angle cable screw	H_P3	mm	48.5	48.5	48.5	48.5	48.5	48.5	48.5	48.5	48.5	48.5
Diameters & Threads
Thread pitch diameter, secondary part, assembly side	D_STA	mm	200	200	200	200	200	200	200	200	200	200
Inner diameter, secondary part, assembly side	D_SA	mm	145	145	145	145	145	145	145	145	145	145
Inner diameter, secondary part, non-assembly side	D_SN	mm	145	145	145	145	145	145	145	145	145	145
Thread, secondary part	TS_S×TD_S	–	M8×14	M8×14	M8×14	M8×14	M8×14	M8×14	M8×14	M8×14	M8×14	M8×14
Thread, secondary part, number×pitch	n_S×TP_S	°	24×15	24×15	24×15	24×15	24×15	24×15	24×15	24×15	24×15	24×15
Thread, primary part, cable side	TS_PC×TD_PC	–	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10
Thread, primary part, cable side, number×pitch	n_PC×TP_PC	°	23×15	23×15	23×15	23×15	21×15	21×15	43×7.5	43×7.5	39×7.5	39×7.5
Thread, primary part	TS_P×TD_P	–	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10	M5×10
Thread, primary part, number×pitch	n_P×TP_P	°	24×15	24×15	24×15	24×15	24×15	24×15	48×7.5	48×7.5	48×7.5	48×7.5

Performance Data

Notes

Tolerance range ±10%. Each column is a "size × magnet configuration × winding design" combination. Nominal feed temperature of the cooling water +20 °C.

Performance Data	Symbol	Unit	230×50 R20 · Z2	230×50 R22 · Z2	230×75 R20 · Z2	230×75 R22 · Z2	230×100 R20 · Z3.3	230×100 R22 · Z3.3	230×125 R20 · Z3.3	230×125 R22 · Z3.3	230×150 R20 · Z4	230×150 R22 · Z4
Torques
Ultimate torque	T_u	Nm	381	522	561	772	751	1029	939	1126	1126	1117
Peak torque	T_p	Nm	353	475	529	703	710	937	887	1126	1065	1117
Continuous torque, cooled	T_cw	Nm	201	252	317	396	421	532	536	671	643	814
Torque at I_{cw2 eff} and n_lw2	T_cw2	Nm	185	229	291	360	387	484	493	610	592	740
Torque at I_{cw2 eff} and n_lw3	T_cw3	Nm	122	155	91	167	174	293	212	391	239	623
Continuous torque, not cooled	T_c	Nm	88	104	135	160	180	209	222	255	265	307
Stall torque, cooled at I_{sw eff}	T_sw	Nm	153	189	236	294	324	395	412	498	495	604
Cogging torque	T_cog	Nm	1.3	1.5	1.9	2.2	2.3	2.7	2.9	3.3	3.5	4.0
Speeds
Limiting speed at I_{p eff} and U_DCL	n_lp	min⁻¹	1011	1010	694	681	895	875	719	710	865	886
Knee speed	n_lw	min⁻¹	1271	1166	850	775	1070	979	855	787	1019	930
Rated speed S1, cooled	n_lwS1	min⁻¹	500	500	500	500	500	500	500	500	500	500
Operating speed FS at I_{cw2 eff} and U_DCL	n_lw2	min⁻¹	1297	1179	867	783	1087	988	869	795	1035	938
Limiting speed at I_{cw2 eff} and U_DCL in continuous operation	n_lw3	min⁻¹	2200	1600	2200	1200	2200	1400	1800	1100	2200	1150
Currents
Effective ultimate current	I_{u eff}	A	141.8	141.8	141.8	141.8	236.4	236.4	236.4	181.2	335.9	190.4
Effective peak current	I_{p eff}	A	113.5	113.5	113.5	113.5	189.1	189.1	189.1	181.2	268.8	190.4
Effective continuous current, cooled	I_{cw eff}	A	47.0	47.0	49.3	49.3	82.8	82.8	84.4	84.4	119.9	119.9
Effective continuous current for higher speeds (S1)	I_{cw2 eff}	A	42.3	42.3	44.4	44.4	74.6	74.6	76.0	76.0	107.9	107.9
Effective continuous current, not cooled	I_{c eff}	A	18.7	18.7	19.1	19.1	31.2	31.2	30.8	30.8	43.5	43.5
Effective stall current, cooled	I_{sw eff}	A	33.8	33.8	35.5	35.5	59.6	59.6	60.8	60.8	86.4	86.4
Power losses
Power loss at T_p	P_lp	W	4904	4904	6313	6313	8039	8039	9506	8730	11266	5652
Power loss at T_cw	P_lw	W	1097	1097	1554	1554	2011	2011	2468	2468	2925	2925
Power loss at T_c	P_lc	W	133	133	178	178	219	219	251	251	295	295
Mechanical power
Max. rated power	P_{max S1}	W	28000	26000	21000	21000	40000	43000	40000	45000	55000	75000
Electrical characteristic values
DC link voltage	U_DCL	V	600	600	600	600	600	600	600	600	600	600
Electrical resistance, phase to phase	R₂₀	Ω	0.25	0.25	0.33	0.33	0.15	0.15	0.18	0.18	0.10	0.10
Inductance, phase to phase	L	mH	2.8	1.8	3.8	2.5	1.7	1.1	2.1	1.4	1.2	0.8
Back EMF constant, phase to phase	k_û	V/(rad/s)	3.8	4.6	5.8	6.8	4.7	5.5	5.9	6.8	5.0	5.8
General characteristic values
Number of pole pairs	P	–	15	15	15	15	15	15	15	15	15	15
Motor constant at +20 °C	k_m	Nm/√W	7.6	9.0	10.1	12.0	12.2	14.1	14.0	16.1	15.4	17.9
Torque constant	k_T	Nm/A	4.7	5.6	7.1	8.4	5.8	6.7	7.2	8.3	6.1	7.1
Motor temperature switch-off threshold	ϑ_PTC	°C	100	100	100	100	100	100	100	100	100	100
Axial attraction	F_a	kN	0.43	0.67	0.43	0.67	0.43	0.67	0.43	0.67	0.43	0.67
Radial attraction	F_r	kN/mm	4.9	5.1	7.3	7.7	9.7	10.2	12.1	12.8	14.6	15.3
Moment of inertia, secondary part	J	kg·m²	0.092	0.096	0.128	0.134	0.165	0.173	0.202	0.212	0.239	0.251
Cooling conditions
Volume flow	dV/dt	l/min	3.1	3.1	4.5	4.5	5.8	5.8	7.1	7.1	8.4	8.4
Nominal feed temperature	ϑ_nf	°C	20	20	20	20	20	20	20	20	20	20
Cooling water temperature difference	∆ϑ	K	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0

Note: Tolerance range of all values ±10%. Binding data and drawings will be made available by agreement; we recommend obtaining support from our engineers in the motor design phase. Subject to change without notice.

Drawing

Description

Geometric Data

Notes

Performance Data

Notes

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