Selection of LTi Drives ServoOne Full Series Servo Drive Systems

II ServoOne junior

Power and Model

1/3 × 230V version: SO22 series, 3A/5.9A/8A;

3 × 400-480V version: SO24 series, 2A/3.5A/6.5A/12A/16A;

Shell specifications BG2-BG5; Air cooled, vertical cabinet installation IP20.

key parameters

Overload capacity: up to 300% short-term overload; The output current is affected by switch frequency, ambient temperature, and motor cable length, and high frequency and high temperature will automatically reduce the rating.

Interface: 7-segment digital tube status display; USB、 Ethernet; Option 1 bus slot; Optional 2 process option slot; Motor brake output and temperature detection; Can be equipped with internal braking resistors (except BG2).

Environmental conditions: Operating at -10~+45 ℃ (4kHz), with a maximum temperature of 40 ℃ at 8/16kHz; Capacity reduction at altitude>1000m; Pollution level 2; When using STO, the minimum cabinet protection is IP54.

Order code: including voltage, rated current, STO safety, bus options, heat dissipation, iPlc software package, three proof coating, hardware version.

Supporting accessories: incoming reactor, EMC filter, external braking resistor.

Attention: The recommended length for motor cables is ≤ 10m, with a maximum allowable length of 30m; exceeding this limit will result in a derating. The document provides complete information on various models of DC busbars, losses, dimensions, and weights.

ServoOne Single Axis Single Axis AC Drive

Independent AC input servo driver, housing BG1~BG7, supporting two cooling schemes: air cooling/liquid cooling.

Model

BG1：4‑6A； BG2：8‑12A； BG3：16‑20A； BG4：24‑32A； BG5：45‑72A； BG6/BG6a：90‑170A； BG7: 250-450A (liquid cooling only).

Power supply: 1 × 230V (BG1); 3 × 230-480V full series.

Current table: distinguish between rated current, peak current, and duration I ² t protection under different switching frequencies, ambient temperatures, and input voltages; The liquid cooled version can output a larger current compared to the air-cooled version.

Hardware features: MMC storage card slot; USB、 Ethernet; Option 1 communication, Option 2 process extension; 7-segment digital tube; Motor brake interface, motor temperature PTC/KTY.

Ordering code: voltage level, current, STO safety, bus options, heat dissipation (air-cooled/liquid cooled, with or without built-in braking resistor), iPlc/HF software package, three proof coating.

Environment and Certification

High temperature derating of air-cooled models; Liquid cooled BG7 coolant with a maximum temperature of 40 ℃;

Protect IP20; The minimum IP54 for the cabinet during STO function;

BG1-BG6a (≤ 210A) STO SIL3 complete T Ü V certification; BG7 (≥ 250A) certification was in preparation at the time.

Some models have built-in EMC filters; High power BG6-BG7 requires an external EMC filter.

Matching accessories

Inlet reactor, external braking resistor series BR xxxx, EMC filter, liquid cooled pipeline kit; The document provides recommended materials for each model.

ServoOne Multi Axis Multi Axis Common DC Bus System

Architecture: PSU rectifier feedback power unit+DC axis controller, sharing DC bus; The braking energy can be sine fed back to the power grid, saving energy.

PSU power unit: power 26-360 kW; models SO84.040. S, 076. S, 115. S, 170. S, 375. S, 540. S; Provide controlled and stable DC bus; Built in DC fuse.

DC axis controller model SO84.xxx.1; Current coverage 4-450A; shell BG1-BG7; Air cooling/liquid cooling. The hardware interface, Options 1/2, and software package iPlc/HF are completely identical to the single axis system, except that the power supply has been changed to a DC bus.

Ordering code: Separate coding for axis controller and power unit; The power unit has a separate specification sheet, which includes power, input and output, losses, dimensions, and weight.

Safety Systems

Hardware: 4-channel safety DI, 4-channel safety DO (capable of safety pulse output), 2-channel safety brake output.

Standard safety features (compliant with IEC61508 SIL3/ISO13849-1 PL e Cat.4)

STO: Safety torque shutdown; SS1/SS2 safety stop; SLS safety speed limit; SDI safety direction; SOS safe operation stopped;

ECS encoder monitoring; ESM encoder static monitoring; SBC safety brake control; SBT safety brake test; SCA safety cam;

SCC secure cross communication; Supports FSoE (EtherCAT security protocol).

Tool: SafePLC-S software for safety logic programming; DriveManagerial 5 is used for security parameter configuration.

Installation constraint: Use integrated safety features, with a minimum protection level of IP54 for the control cabinet.

Option 1- Communication Options

Hardware option board, specified at the time of ordering, not available for on-site hardware modification:

Sercos‑II； PROFIBUS‑DP‑V1； EtherCAT； CANopen (with 2AO analog output); PROFINET‑IRT； Sercos‑III。 All support corresponding sports rules CiA402/PROFIdrive/Sercos.

Option 2- Process Technology Options

The second Sin Cos encoder; Second secure Sin Cos encoder;

TTL encoder simulation/TTL main encoder; TwinSync (up to two high-speed hardware axis synchronization);

SSI simulation; TTL encoder with commutation signal; DIO digital IO extension;

Second secure SSI encoder; Safety axis monitoring; Hiperface DSL single cable motor interface.

Function Packages feature software packages

IPlc: IEC61131-3 standard, internal PLC of the driver, direct access to IO and motion parameters;

HF high-frequency package: suitable for high-speed spindles and high-frequency motion applications, improving algorithm performance.

The basic version does not include it, and the ordering code is enabled.

Accessories 

MMC memory card: stores complete drive parameters and can quickly copy configurations;

DriveManagerial 5 PC software: debugging, parameter configuration, oscilloscope, firmware upgrade;

Cable: power motor cable, encoder cable, distinguish different motor interfaces;

Incoming Reactor Series LR xxx;

Brake resistor BR series, distinguishing power and resistance value;

EMC filter;

Liquid cooled connection kit, used for liquid cooled drives.

Servo motor

LTi’s proprietary servo motor series:

LSH: High power density power type servo motor;

LST: Universal servo;

LSN: Compact Economy Type;

LSP: slender type, can be equipped with planetary gearbox.