AC Servo Drives

VEICHI SD700

High-performance flagship, 0.1 kW to 55 kW

The most capable drive in the range and the one to specify when the mechanics are imperfect. It holds tune across a 30:1 swing in load inertia without touching a parameter, and its notch filter finds and kills mechanical resonance below 100 Hz in under 70 milliseconds.

Power range

0.1-55 kW (customisable to 250 kW)

Encoder

23-bit absolute at 2.5 Mpps; 17-bit and 20-bit serial; 2,500-line pulse encoders

Speed loop bandwidth

Up to 3 kHz, settling from 1 ms

Control modes

Position, speed and torque

Communication

RS-485, EtherCAT, CANopen, MECHATROLINK

I/O

9 assignable 24 V inputs, 3 isolated outputs

VEICHI SD710

General-purpose servo, 30% smaller than its predecessor

The volume workhorse of the servo range. Same 17-bit and 23-bit absolute encoder support as its bigger siblings, in a body that reclaims 30 percent of panel width on the 5R5 frame. Parameter copy makes commissioning a line of identical axes a two-minute job.

Encoder

17-bit / 23-bit absolute

Response frequency

Up to 3.0 kHz

Speed control range

1:5000

Torque accuracy

+/-1%

Control modes

Position (pulse + direction, CW/CCW, A/B quadrature), speed, torque

Communication

Micro USB and RS485 standard; CANopen and EtherCAT optional

VEICHI SD780

SIL3 Safe Torque Off as standard, CE / EAC / UL certified

The drive to specify when the safety case is part of the sale. SIL3 STO is standard rather than an option, and the CE, EAC and UL certifications are already in place - which shortens the conversation on new energy, lithium battery and photovoltaic equipment considerably.

Encoder

17-bit / 23-bit absolute; battery life over 3 years

Safety

SIL3 Safe Torque Off, standard

Certification

CE, EAC, UL

Pulse input

4 Mpps differential; 200 kpps open collector

Speed control range

1:5000; position settling to 10 ms

Communication

RS485 and MicroUSB standard; CANopen and EtherCAT optional

VEICHI SD810

Multi-drive platform for injection moulding and die casting

A multi-axis servo platform aimed squarely at injection moulding, die-casting and bending machines, where several high-torque axes share one cabinet and one DC bus. Configuration is application-specific rather than catalogue-driven.

Architecture

General multi-drive servo system

Target machines

Injection moulding, die casting, bending

Veichi configures the SD810 to the machine rather than publishing a fixed rating table. Send us your axis count and torque requirements and we will specify it.

VEICHI SD860

Dual-axis modules on a common DC bus, 60% space saving

Where axis count is high and panel space is not, the SD860 puts two axes behind one chip on a shared DC bus. The shared chip cuts inter-axis communication delay and improves interpolation; the shared bus recovers braking energy between axes instead of burning it in a resistor.

Rated output current

3.8-24 A, up to 60 A instantaneous

Input

Three-phase 380 V; DC bus 510-720 V

Frequency

0-500 Hz; 8 kHz carrier

Modules

Single-axis and dual-axis inverter modules

Encoder

17-bit / 23-bit absolute

Communication

EtherCAT, 100 Mbps industrial bus

VEICHI SD900

3.5 kHz speed loop, 25-bit absolute encoder, 0.05 kW to 7.5 kW

The highest-bandwidth drive Veichi builds, with a 3.5 kHz speed loop and 25-bit multi-turn absolute feedback. Resonance auto-identification and a ripple compensation algorithm take most of the guesswork out of commissioning a demanding axis.

Power range

0.05-7.5 kW

Encoder

17-bit, 23-bit and 25-bit multi-turn absolute

Speed loop bandwidth

Up to 3.5 kHz

Control modes

Pulse and EtherCAT

Motor types

Asynchronous, synchronous and direct-drive

Safety

STO and dynamic brake; CE, UL, EAC