YASKAWA SGMCS series direct drive servo motor

Low noise and low-noise operation: No gear meshing noise, operating noise ≤ 60dB, suitable for low-noise environments such as clean rooms and laboratories

Multiple protection mechanisms: The motor side supports over temperature and over current protection; The amplifier side supports 10+protection functions such as overvoltage, undervoltage, overload, encoder error, etc

System configuration and wiring specifications

（1） System composition architecture

The complete system should include: SGMCS servo motor+SGDS/SGDH servo amplifier+peripheral devices (circuit breakers, filters, contactors, etc.)+connecting cables (power/SGMCS servo motor+SGDS/SGDH servo amplifier+peripheral devices (circuit breakers, filters, contactors, etc.)+connecting cables (power/encoders/I/O)

Power supply circuit: three-phase/single-phase power supply → MCCB (molded case circuit breaker) → noise filter → electromagnetic contactor → servo amplifier main circuit terminal

Control circuit: host controller → servo amplifier CN1 (I/O signal) → servo motor CN2 (encoder signal)

Auxiliary circuit: Regenerative resistor (optional), DC reactor (harmonic suppression), surge absorber

（2） Key wiring requirements

1. Main circuit wiring (power circuit)

Terminal definitions: amplifier L1/L2/L3 (power input), U/V/W (motor output), B1/B2 (regenerative resistor), FG (ground)

Cable specifications: AWG20 (0.5mm ²) for small capacity motors, AWG16 (1.25mm ²) for medium capacity motors, grounding cable cross-section ≥ 2.0mm ²

Grounding requirements: independent grounding, grounding resistance ≤ 100 Ω (200V system), motor FG terminal directly connected to amplifier FG terminal

2. Control circuit wiring (signal circuit)

Connector signal type core terminal functional wiring specification

CN1 (amplifier) I/O signal speed reference (V-REF), torque reference (T-REF), position pulse (PULS/IGN), servo ON (/S-ON) shielded twisted pair, with a maximum length of 3m and a distance of ≥ 30cm from the power cable

CN2 (amplifier) encoder signal encoder power supply (PG5V/PG0V), serial data (PS//PS), frame grounding (FG) shielded twisted pair, up to 50m, shielding layer single ended grounding (amplifier side)

Motor side connector power signal U/V/W (phase line), FG (chassis grounding) dedicated power cable (JZSP-CMM series), to avoid loose joints

3. Typical wiring diagram example

Single phase 200V system (SGDS amplifier+small capacity motor): L1/L2 connected to single-phase power supply, B1/B2 connected to regenerative resistor, CN1 connected to control signal, CN2 connected to encoder, motor U/V/W corresponding to amplifier output

Three phase 200V system (SGDH amplifier+medium capacity motor): L1/L2/L3 connected to three-phase power supply, 1/2 terminal connected to DC reactor, other interfaces consistent with single-phase system

（3） Selection of peripheral devices

Recommended equipment types, applicable scenarios, core parameters

Noise filter FN2070-6/07 (single-phase) suppresses power side electromagnetic interference 250VAC, 6A, insertion loss ≥ 25dB

FN258L-16/07 (three-phase) three-phase system harmonic suppression 480VAC, 16A, insertion loss ≥ 30dB

DC reactor X5054 (SGDS) reduces input current harmonic inductance by 5.0mH and rated current by 5.0A

X5059 (SGDH) three-phase system harmonic suppression inductor 1.0mH, rated current 14.0A

Electromagnetic contactor HI-11J (20A) controls the power on/off of amplifier 250VAC, 20A, with surge absorber

Digital operator JUSP-OP05A (SGDS) amplifier parameter configuration/monitoring 1m connection line, supports parameter upload and download

JUSP-OP02A-2 (SGDH) extension function debugging supports self-tuning and alarm traceability

Selection process and order reference

（1） Selection steps

Clear requirements: Determine load torque, speed, positioning accuracy, installation space, and power supply type (single-phase/three-phase)

Motor selection: Match the outer diameter and model of the motor according to the torque speed requirements (refer to the torque speed characteristic curve)

Amplifier selection: Choose SGDS/SGDH series according to motor capacity and power supply type to ensure that the output current covers the motor requirements

Peripheral device matching: Select circuit breakers, filters, and reactors based on amplifier power, and choose dedicated cables according to wiring length

Parameter confirmation: Check the ratio of motor moment of inertia to load moment of inertia (recommended ≤ 10:1) to ensure dynamic response performance

（2） Motor amplifier adaptation table

Motor model compatible with SGDS amplifier compatible with SGDH amplifier power supply type

SGMCS-02B/05B/07B 02F/02A 02AE single-phase 100V/200V

SGMCS-04C/10C/14C 04F/04A 04AE single-phase 100V/200V

SGMCS-08D/17D/25D 04F/04A 04AE single-phase 200V

SGMCS-16E/35E 08A 08AE single-phase 200V

SGMCS-45M/80M/1AM -10AE/15AE/20AE Three phase 200V

SGMCS-80N/1EN/2ZN-15AE/30AE three-phase 200V

（3） Selection of specialized cables

Recommended cable types, applicable scenarios, length specifications

Motor power cable JZSP-CMM60-03 small capacity motor (B/C/D type) 3/5/10/15/20m

JZSP-CMM00-03 Medium Capacity Motor (M/N Type) 3/5/10/15/20m