ELAU PacDrive SM series permanent magnet synchronous servo motor
Product Overview
The PacDrive SM series is a permanent magnet synchronous AC servo motor launched by ELAU, designed specifically for high dynamic positioning tasks. It uses neodymium iron boron permanent magnets and has the characteristics of low moment of inertia, high overload capacity, sine wave back electromotive force, etc., achieving maintenance free operation.
Core Features
High dynamic response and acceleration performance
High overload capacity, high torque output
Low inertia design, reducing energy consumption and heat generation
Stator PTC * * 130 ℃ * * temperature control protection
Insulation level F (155 ℃)
Protection level IP65, optional gas seal IP67
Model Series
Series flange specifications, typical torque, maximum speed
SM 070 70mm 1.1~2.0Nm 6000rpm
SM 100 100mm 2.6~8.2Nm 5000/4000/3000rpm
SM 140 140mm 11~36Nm 3000/2000rpm
Safety regulations
risk level
DANGER: High voltage fatal risk, operation can only be carried out after 5 minutes of power outage
Warning: Mechanical squeezing and cutting risks, no standing in the movement area
CAUTION: Risk of static damage, liquid intrusion, and torque overload
Personnel Requirements
Only for professional electrical/mechanical engineers, electrical operations must be carried out by certified electricians.
residual risk
Live parts * * ≥ 50V * * pose a risk of electric shock
Leakage current * *>3.5mA * *, must be reliably grounded
Unexpected actions may lead to personal injury
Transportation, storage, and unpacking
Transportation: Avoid impact, inspect appearance for damage immediately upon arrival
Storage: Environment * * -25 ℃~+70 ℃ * *, dry and dust-free, temperature change ≤ 30K/hour
Unpacking: Check the model, serial number, hardware code, and inspect the appearance

Installation and mechanical characteristics
Installation method
Support IM B5/V1/V3 (flange/vertical) installation, IM V3 needs to strengthen the shaft seal to prevent liquid intrusion.
Shaft and bearings
Shaft end: standard optical axis, optional keyway shaft/stainless steel shaft
Bearing: fixed at end A, floating at end B, compensating for thermal expansion
Radial force: SM070 maximum 546N@1000rpm , with a lifespan of 20000 hours
Axial force: ≤ 0.2 × radial force
Brake (optional)
Type: Permanent magnet power-off braking, safety type
Torque: SM070 (2.5Nm), SM100 (11Nm), SM140 (22Nm)
Voltage: 24V DC
Limitation: Only stationary hold, emergency stop energy consumption limit (SM070 ≤ 50Ws)
Electrical parameters and interfaces
General Electric Data
Power supply: 3AC 400V
Torque constant: 0.78~1.70Nm/A
Winding: Star connection (Y)
Temperature protection: * * PTC 130 ℃ * * switch triggered
Interface Definition
Interface pin function
X2 (power) 1-3 U/V/W three-phase power supply
4 PE grounding
X3 (brake/temperature control) 1-2 PTC temperature signal
3-4 brake ± 24V
X4 (encoder) 1-8 SinCos/Solver signal
Encoder Options
SinCos: 1024 cycles/rev, single/multiple cycles, resolution of 12 bits
Resolver: Brushless hollow shaft, resistant to vibration and high temperature, suitable for harsh environments
Maintenance and Repair
Maintenance points
Overall maintenance free, only the surface needs to be cleaned, high-pressure water gun flushing is prohibited
Grounding and shielding must comply with EMC specifications
Storage exceeds 2 years, the brake needs to be re ground
Replacement process
Power off and lock, wait for 5 minutes for discharge
Anti static operation, touch grounded metal
Plug and unplug the connector to confirm that there is no power
Restore origin calibration after reinstallation
Spare parts and services
Spare parts must be of the same model and hardware version
Repair requires filling out a fault report and ESD packaging
Service address: Headquarters in Germany, subsidiaries in the United States and Italy
Attachments and Orders
cable series
Power cable: 1.5/2.5/4mm ², suitable for different powers
Encoder cable: corresponding to SinCos/Solver interface
Connector: SM070/100/140 Special Kit
Model coding rules
SM flange/speed/torque/shaft/IP/encoder/B brake
P0/P1: Standard shaft/keyway shaft
45/55:IP65/IP65
5A: IP67 gas seal
S1/R1/M1: Single cycle/Resolver/Multi cycle
B0/B1: No brake/with brake
Environment and Certification
Working temperature: 0~40 ℃,>40 ℃. For every 1 ℃ increase, the capacity decreases by 1%
Altitude: ≤ 1000m without capacity reduction,>1000m requires capacity reduction
Certification: UL, cUL, CE, EMC, compliant with Machinery Directive 98/37/EC
