UGTMEM-06LSF61 Minertia Mini Coreless Brushed DC Servo Motor Product Specification

UGTMEM-06LSF61 belongs to Yaskawa Minertia Mini high-power coreless brushed DC servo motor family, widely matched as feed drive axis for Sodick and other brand precision wire-cut EDM equipment, high-precision special automation machinery and heavy-load laboratory positioning equipment. Adopting proprietary cup-type coreless rotor design without silicon steel lamination, this motor eliminates inherent cogging torque of conventional iron-core servo motors and realizes ultra-smooth low-speed constant rotation with negligible torque ripple; ultra-low rotor inertia enables outstanding dynamic responsiveness for frequent forward-reverse rotation, rapid acceleration and deceleration under periodic heavy-load cycling operation. The LSF coding indicates factory integrated built-in TG-series analog tachometer feedback unit, customized flying lead wiring structure with bundled multi-core power and signal outgoing cables, while suffix 61 stands for exclusive rear wiring layout, fixed shaft dimension, internal winding routing and dedicated pin assignment differing from regular LSF21, LSF31 standard variants. Original manufacturer has terminated mass production, available genuine products mainly come from used disassembled industrial spare parts and factory surplus refurbished inventory, which serves as critical replacement spare for aging EDM machine tool aftermarket maintenance. No built-in power-off electromagnetic holding brake is configured as standard factory setup to control overall motor body dimension and reduce rotor extra inertia.

UGTMEM is unified base model prefix for non-brake Minertia Mini coreless DC servo lineup; digit 06 represents large frame specification corresponding to rated continuous output power of 150W under nominal working condition. LS denotes built-in original TG-7SVC analog tachometer generator for real-time speed voltage feedback, paired with flexible flying lead cable instead of fixed terminal block wiring mode; letter F marks customized bundled multi-strand cable assembly with external protective sleeve for power armature and tachometer signal split wiring; numerical suffix 61 defines exclusive machining specification of output shaft, internal winding layout, cable length standard and internal tachometer circuit connection logic, resulting in non-interchangeable mechanical installation and electrical wiring with other LSF series suffix models such as LSF21 and LSF41. Direct cross substitution is prohibited unless complete cable re-termination and full servo drive parameter reset and calibration are fully finished after field mounting.

The motor is designed for 23.5VDC nominal rated armature input voltage and must cooperate with original matched Minertia dedicated DC servo amplifier to build full closed-loop speed control system. Under standard rated test environment at room temperature, continuous rated output power reaches 150W, rated full-load armature operating current is 6.1A, nominal continuous rated rotating speed maintains 3000rpm, and allowable short-time instantaneous peak transient speed can hit 3600rpm for short-period overload operation. Rated continuous output torque is 0.92Nm and instantaneous peak overload torque can reach five times rated torque to bear sudden impact load and frequent start-stop working cycles. Equipped with factory pre-installed TG-7SVC onboard analog tachometer generator that outputs linear DC voltage signal proportionally linked to actual rotational speed, enabling high-precision full closed-loop speed control without additional external encoder installation. Internal stator winding complies with Class F insulation grade with embedded built-in thermal sensing protection component, which feeds overheat trigger signal to matched servo driver to execute automatic power cutoff and prevent coreless winding burnout caused by long-term over-temperature operation. Built-in surge absorption and noise suppression components are pre-mounted inside internal wiring cavity to restrain industrial site instantaneous voltage spike and surrounding electromagnetic interference from switching power supply and nearby inverter equipment; standard ambient-temperature armature resistance is 1.8Ω and armature inductance is 0.95mH under factory certification test condition.

Integrally enclosed motor housing achieves IP54 standard ingress protection rating and relies on full natural convection passive heat dissipation without auxiliary cooling fan structure. Standard solid cylindrical output shaft is reserved for matching precision timing belt pulley, miniature planetary gear reducer and small-size ball screw drive assembly; unified square flange mounting dimension is 90mm×90mm, overall motor body outer dimension is 90mm×90mm×112mm and net assembly total weight is approximately 3.15kg.

Permissible continuous operating ambient temperature range is from 0°C to +40°C; spare part long-term storage temperature spans -20°C to +70°C; applicable working environment relative humidity is restricted between 5%RH and 80%RH under non-condensing condition to avoid dew penetration triggering internal winding and tachometer signal circuit short-circuit damage. When installation altitude exceeds 1000 meters above sea level, continuous rated operating load requires proper derating to compensate reduced heat dissipation efficiency under low atmospheric density circumstance. The motor is verified to withstand standard industrial vibration within 10Hz~55Hz frequency scope; installation location with corrosive chemical gas, persistent liquid splash and accumulated conductive metal dust is strictly forbidden to extend service life of front-end rolling bearing, carbon brush set and built-in tachometer core assembly.

UGTMEM-06LSF61 exclusively matches original Yaskawa Minertia dedicated DC servo controller, accepting ±10VDC analog voltage speed command input signal transmitted from upper-level PLC or dedicated motion controller unit. Supported by onboard integrated tachometer real-time speed feedback signal, the servo system realizes high-stability full closed-loop speed regulation with excellent low-speed constant-speed running precision without extra external feedback hardware configuration. For high-precision closed-loop position control application required by advanced automated equipment, users can optionally install independent external incremental encoder on motor rear shaft extension end and complete corresponding drive parameter modification and commissioning. Since no built-in power-off holding brake is equipped, vertically installed mechanical equipment driven by this motor must add separate external mechanical locking fixture to avoid free falling of loaded workpiece when unexpected power outage occurs. Benefiting from native tachometer feedback configuration, this model delivers far superior low-speed feeding stability compared with non-tachometer LB series same-frame motors especially in precision wire feeding control of wire-cut EDM machine tools.

Multi-layer comprehensive safety protection is realized via coordinated operation between internal embedded thermal sensing component and matched servo drive equipment. Winding over-temperature signal triggers automatic servo overload shutdown to avoid permanent thermal burnout of coreless rotor winding; poor contact or open circuit of flying lead power cable and tachometer signal cable separately leads to drive overcurrent fault alert or speed feedback loss alarm displayed on servo operation panel and subsequent motor emergency stop protection. Independent noise filtering circuit is embedded inside both armature power loop and tachometer signal transmission loop to filter complex on-site industrial electromagnetic interference and guarantee stable feedback signal transmission under long-term continuous running status. Excessive carbon brush abrasion after long-time cyclic operation causes abnormal armature current rise and corresponding overload warning prompt output from matched servo driver to remind timely maintenance replacement of wearing consumable parts.

Field equipment maintenance replacement needs identical UGTMEM-06LSF61 original specification motor; same 06 frame LSF different suffix variant, LB non-tachometer version or brake-equipped motor model cannot be directly installed for substitution unless complete flying lead cable recrimping termination and full servo drive parameter reset calibration are accomplished after mounting. Before disassembling motor for carbon brush replacement, bearing inspection or built-in tachometer overhaul, maintenance operators must fully cut off 23.5VDC main armature power supply and wait no less than 15 minutes for full discharge of servo drive internal DC bus residual capacitor voltage to eliminate residual high voltage and prevent electric shock safety accident. Regular periodic maintenance items include checking remaining carbon brush thickness every three months and implementing brush replacement when residual thickness is less than one-third of original factory specification; supplementing high-temperature resistant bearing grease after cumulative continuous operating runtime exceeds 8000 working hours and cleaning dust accumulation on motor housing every half year to maintain original passive natural heat dissipation efficiency. Random alteration on exclusive 61 coding cable wiring definition and internal tachometer circuit layout will directly induce motor runaway operation and permanent servo driver hardware locking failure.

This customized flying lead tachometer-equipped coreless DC servo motor is primarily adopted for main wire-feed driving axis of Sodick and other high-precision wire cut EDM machine tools, heavy-load micro rotary indexing platform of large-scale electronic component automated assembly production line, precision fine feeding driving unit of optical microscopic inspection and industrial laboratory precision test automation equipment. It is specially suitable for compact mechanical structures with limited installation space, frequent forward-reverse cyclic start-stop movement and strict low-speed constant-speed precision feeding control requirements for medium and small heavy-load precision automation machinery.