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Home » Products » AC Drives » ACS 850 Variable Frequency Drives

ACS 850 Variable Frequency Drives

ACS 850 Variable Frequency Drives
ACS 850 Variable Frequency Drives
Product Code : ACS 850
Brand Name : ABB
Price And Quantity
  • Unit of Measure
  • Unit/Units
  • Minimum Order Quantity
Trade Information
  • Payment Terms
  • Cash Against Delivery (CAD), Cash in Advance (CID), Others
  • Supply Ability
  • As per the buyers requirement
  • Packaging Details
  • Carton Packaging / Wooden Packaging / Customized Packaging
  • Main Export Market(s)
  • Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa
  • Main Domestic Market
  • All India
Product Description

With an aim to provide immense satisfaction to clients, we are engrossed in providing excellent grade ACS 850 Variable Frequency Drives. The offered drives are manufactured by deft team of professionals using supreme quality components with the help of latest techniques. Highly cherished to implement emergency stop without connectors in various industries, these drives are suitable to use where audible noise an issue. Moreover, these ACS 850 Variable Frequency Drives can be purchased from us at industry leading prices.


  • Ruggedness
  • High efficiency
  • Longer life
  • Less maintenance





ACS 850


Modular and compact design

  • Compact size, side-by-side mounting
  • Modular design

User interface and programming

  • Intuitive human-machine interface
  • Drive programming and configuration
  • Memory unit for easy drive management

Designed for reliability

  • Robust main circuit design
  • Extensive protection
  • Maintenance assistant
  • Diagnostic assistant

Optimized use

  • Energy saving calculator
  • Load analyzer
  • Energy optimizer
Control and performance
Compatible with these AC motors:
- induction
- permanent magnet
- synchronous reluctance
  • Standard drive-to-drive link,
  • configurable as Modbus link
  • Different communication options
  • Integrated safe torque-off function (up to SIL 3)
  • Extensive configurable standard I/Os
  • Optional I/O extensions
  • Direct torque control


  • Smallest frame size is only 93 mm (4 in) wide.
  • More drives can be placed in the same cabinet.
  • Many standard features and a wide range of options allow different system configurations.
  • Large alphanumeric display showing different assistants and macros.
  • Can replace relays and small PLCs with function block programming.
  • Complete drive configuration and settings are stored in a separate memory unit.
  • Power or control unit can be replaced without parameter setting.
  • Enhanced reliability.
  • Coated boards and long lifetime components.
  • Cooling supervision (depending on frame size).
  • Advanced thermal protection of the drive semiconductors and motor.
  • Indicates preventive maintenance needs of drive, motor or machine.
  • Helps in locating failures or reasons for performance changes and suggests remedies.
  • Monitors used and saved energy, displayed in kWh, currency (€ or $) or volume of CO2 emission.
  • Shows the load profile of the drive.
  • Maximizes efficiency by optimizing the motor flux.
  • Same drive can be used to control different motor types.
  • Galvanic isolated connection for master-follower communication or Modbus.
  • Supports most common communication protocols.
  • High SIL class means high reliability of the safety function.
  • Can also be used to implement Emergency Stop without contactors.
  • Optimized accessibility.
  • Plug-in analog and digital I/O extensions.
  • Accurate, dynamic and static speed and torque control.
  • Excellent process control even without pulse encoder.
  • High overload and high starting torque.
  • Less noise during motor operation.
  • Output frequency up to 500 Hz.
  • Enhanced motor identification at standstill.


  • Optimum installation layout and efficient cabinet space usage.
  • Space and cost savings.
  • Fits many application needs.
  • Offers flexibility in system design.
  • Faster and more accurate drive configuration.
  • Optimal drive settings as assistants offer interactive help.
  • Lower investment cost.
  • Higher flexibility in system design.
  • Drive functionality can be easily configured, modified or updated with the memory unit.
  • Offers quick and easy after-sales service.
  • Less process interruptions.
  • Lower maintenance costs.
  • Higher process up time.
  • Early warning of any production interruptions.
  • Helps with maintenance schedules and cost control of maintenance.
  • Reduced process downtime.
  • Easy to check the return on investment.
  • Easy process analysis.
  • Improves motor performance therefore making the process more efficient.
  • Savings in investment costs.
  • Lower investment costs.
  • More reliable, disturbance-free isolation.
  • Can be applied to several existing processes.
  • Cost-effective and certified solution for safe machine maintenance.
  • Fulfils IEC 61508, EN 62061 and EN ISO 13849-1 standards.
  • Lower cost.
  • Fewer parts and installation work needed for cabinet assembly.
  • Extends drives’ scope, performance and applications opportunities.
  • Improves product quality, productivity and reliability.
  • Lower investment cost.
  • Less maintenance.
  • Suitable for use where audible noise is an issue.
  • Applicable in high speed applications.
  • Better process control due to more accurate identification.
  • Motor identification without decoupling the load.

Technical data

Mains connection

Supply voltage

3-phase 380 to 500 V AC +10 /-15% 3-phase 200 to 240 V AC ± 10%


50 to 60 Hz ± 5%

DC connection

DC voltage level

485 to 675 V DC ± 10% (-5 types) 270 to 324 V DC ± 10% (-2 types)

Charging circuit

Internal in frames A to D External in frames E0 to G2

Motor connection

Motor types

AC induction motors, permanent magnet motors and synchronous reluctance motors

Output frequency

0 to 500 Hz

Motor control

Direct torque control (DTC) or scalar control

Torque control:

Torque step rise time:

Open loop

<5 ms with nominal torque

Closed loop

<5 ms with nominal torque Non-linearity:

Open loop

± 4% with nominal torque

Closed loop

± 3% with nominal torque

Speed control:

Static accuracy:

Open loop

10% of motor slip

Closed loop

0.01% of nominal speed Dynamic accuracy:

Open loop

0.3 to 0.4% sec. with 100% torque step

Closed loop

0.1 to 0.2% sec. with 100% torque step

Braking power connection

Brake chopper

Standard in frames A to D, built-in option in the other frame sizes

Brake resistor

External resistor connected to drive

Operating conditions

Degree of protection

IP20 according to EN 60529 (G frames IP00); Open type according to UL 508

Ambient temperature

-10 to +55 °C (14 to 131 °F), derating above 40 °C (104 °F) No frost allowed

Installation altitude

0 to 4000 m (0 to 13000 ft) (IT network: 2000 m [6560 ft]), derating above 1000 m (3280 ft): 1%/100 m (328 ft)

Relative humidity

Max. 95%, no condensation allowed


Class 3K3, 3C2 according to EN 60721-3-3.


Oil mist, formation of ice, moisture condensation,


water drops, water spray, water splashes and water jets are not permissible (EN 60204, Part 1)


Class 3M4 according to EN 60721-3-3

EMC (According to EN 61800-3)

Categories C2 and C3 with optional filter (according to EN 61800-3)

Functional safety

Safe torque-off (STO according to EN 61800-5-2)
IEC 61508: SIL 3
IEC 61511: SIL3
EN 62061: SILCL 3
EN ISO 13849-1: PL e
Certified by TÃœV


Frames A to D: CE, GOST R, UL, cUL, CSA,
Frames E0 to G: CE, GOST R; pending: UL,
cUL, CSA, C-Tick


Contact Us

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Tips on getting accurate quotes. Please include product name, order quantity, usage, special requests if any in your inquiry.

55, Ezra Street, Kolkata - 700001, West Bengal, India
Mr. Sai Gopal Mohta (Proprietor)

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