Description
The ACS250 drive is part of ABB's complete micro drive range, which offers a solution for every need - drives for simple to more complex machines.
From IP20 series you can find 1-phase 110 - 120 V drives for low power applications, such as pumps, fans, grinders, mixers and conveyors, and 600 V drives with more advanced features for general purpose applications.
From IP66 series you can find a full range of products for harsh environments. IP66 drives are ideal for wash-down applications and the offering covers all the voltages from 1-phase 110 V to 3-phase 600V.
All the drives include a built-in Modbus-RTU serial communication. Intuitive keypad control and build-in macros make commissioning straightforward. IP66 enclosures are available with or without switch featuring a speed potentiometer, FWD-0.REW and power isolator. In 500 - 600 V advanced product types the additional features include e.g. CAN open interface and built-in safe-torque-off (STO) function.
ABB has retained the existing features from its predecessor, ACS250 in the ACS255 series. This means that the installers will find the external dimensions, mounting locations, parameters and other specifications familiar in the ACS255 series. Besides retaining existing features, the ACS255 also features new improvements, such as the sensorless vector control, enhanced short circuit protection and operating mode selection.
Technicians will be aided by the intuitive control panel with LED display when configuring and commissioning the ACS255 series of microdrives. Setting up the ACS255 microdrive is an easy process as it only involves necessary parameter and built-in macros. The ACS255 can also be integrated with existing control and monitoring systems via the built-in Modbus-RTU serial communication.
Installing the ACS255 series is hassle-free as there are no accessories required for mounting the unit. The drive is designed to be compact and can be mounted easily. Configuring multiple units of ACS255 is aided with the copy stick tool, which transfers setup parameters between multiple units effortlessly.
ACS255-03U-02A3-2+B068+F278 - Options:
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- Remote keypad (RCRP-01) provides easy cabinet installations
- Parameter upload/download tool (RCCS-01) for straightforward commissioning
- Relay output card (RCRO-01)
- UL Type 4X/IP66 frames for harsh environments
- Disconnect switch for UL Type 4X/IP66 frames
- Modbus RS485 RJ45 cable splitter
Replacing a motor starter or soft starter with a drive can help improve overall energy efficiency, reduce mechanical stresses and enhance process control.
With its feed-thru wiring, the ACS250 can easily replace motor starters for general purpose low power applications, such as; screws, mixers, pumps, fans and conveyors.
The key features include a integrated keypad for easy configuration, precise process control with an enhanced V/Hz control with variable torque and constant torque V/Hz profiles, and embedded Modbus-RTU communication interface for real time control and monitoring.
Technical documentation for ABB Micro Drives is available in our Technical Library.
Superior Drive Performance:
ACS255-03U-02A3-2+B068+F278 - Modes Of Operation:
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- V / Hz (Constant or Variable)
- Base Frequency Adjustable to Motor Specs
ACS255-03U-02A3-2+B068+F278 - Performance Features:
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- Integrated drive mounted keypad
- 6 character LED display
- Four programmable preset speeds
- One analog output (0-10 VDC)
- Auto restart (up to 5 attempts)
- One band frequency avoidance
- Fault history (last 4 faults)
- Four digital inputs (2 programmable, 2 user selectable analog / digital)
- Digital input type (pull-up)
ACS255-03U-02A3-2+B068+F278 - Drive Specifications:
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- 2 Analog Inputs (0 - 10 VDC, 4 - 20 mA)
- 1 Relay Output (form C relay)
- 1 Analog / Digital Output (0 - 10 VDC: one analog usable for meter or digital output)
- 150% Drive Output Overload Capacity For Up to 60 Seconds
- 175% Drive Output Overload Capacity For Up To 2 Seconds
- 50 - 60 Hz Rated Input Frequency
- 4 - 32 kHz Carrier Frequency (8 kHz default)
- -10 to 40 Degree Celsius Operating Temperature
- Integrated brake chopper on select models
- Up to 150% dynamic braking with appropriately sized resistor
- DC Injection Braking included
- Linear V/Hz, user defined, energy optimizer & boost function.
- 0 - 500 Hz Frequency control range
- Independently adjustable Accel / Decel ramps
- 0 - 600 second time range
- Keypad speed control
- 24VDC logic source inputs
- 150% Electronic motor overload inverse trip for 60 seconds
- 175% Electronic motor overload inverse trip for 2 seconds
- Built-in Modbus-RTU (RS-485) communications
- Built-in PI control
ACS255-03U-02A3-2+B068+F278 - Protective Features:
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- Under voltage fault
- Phase-to-phase on drive output short circuit
- Heat sink monitor over temperature
- DC bus level trip on DC bus overvoltage
- Exceed drive rating of 150% for 60 seconds drive overload trip
- Exceed drive rating of 175% for 2 seconds drive overload trip
- Over-current / short-circuit protection fault
- Open output phase trip
- Loss of speed command reference signal trip
- Communications error fault
ACS255-03U-02A3-2+B068+F278 - Popular Applications Include:
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- Food Processing Machinery
- Packaging Machinery
- Material Handling Systems
- Conveyor Systems
- Pump Systems
- Fan Systems
- Milling Machines
- Hydraulic Systems
- HVAC Systems
- ... And many others!
ACS255-03U-02A3-2+B068+F278 - Global Standards:
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- UL (North America)
- cUL (Canada)
- CE Low Voltage Directive (EN61800-5-1) (Europe)
- GOST (Russia / Ukraine)
- C-Tick (Australia / New Zealand)
ACS255-03U-02A3-2+B068+F278 - Environment:
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- Altitude: 1,000 meters (3,300 feet), derate by 1% per 100 meters up to 2,000 on maximum
- Ambient Temperature: -10 Degrees Celsius to 50 Degrees Celsius
- Storage Temperature: -40 Degrees Celsius to 60 Degrees Celsius
- Relative Humidity: 10% to 95% Non-Condensing
ACS255-03U-02A3-2+B068+F278 ACS255 Series Features
1. ACS255-03U-02A3-2+B068+F278 ACS255 Series Network Connectivity
The ACS255 microdrive features an embedded Modbus RTU using standard RS485 interface. This allows the drive to be controlled and monitored remotely. The drive allocates an RJ45 port where multiple units can be linked in a daisy-chain connection. The port also functions as an access slot for the copy tool used in transferring parameters between drives manually.
2. ACS255-03U-02A3-2+B068+F278 ACS255 Series Heat Dissipation
ACS255 microdrives that are fitted in IP20 enclosures are designed with thermal dissipating features. Drives that are below 1HP relies on natural convection for dissipating excessive heat. Heatsink and cooling fan is fitted on IP20 ACS255 drives that are rated 1HP and above. System installers must ensure that the surrounding air does not exceed 40°C and is free from corrosive substances to provide effective heat dissipation.
3. ACS255-03U-02A3-2+B068+F278 ACS255 Series Operational Interface
A keypad and display are built onto the ACS255 drive to facilitate configuring and commissioning. Parameter setup is standardized to ABB common programming structure for optimal efficiency. There is also an optional remote keypad that serves the same purpose of setting up the drive.
ACS255-03U-02A3-2+B068+F278 ACS255 Series Other Features
1. ACS255-03U-02A3-2+B068+F278 Supporting Options
- Remote keypad (RCRP-02) provides easy cabinet installations
- Parameter upload/download tool (RCCS-01) for straightforward commissioning
- Relay output card (RCRO-01)
- UL Type 4X/IP66 frames for harsh environments up to 15 hp
- Disconnect switch for UL Type 4X/IP66 frames
2. ACS255-03U-02A3-2+B068+F278 Applications</h2
- Conveyors
- Mixers
- Material handling
- Fans and pumps
- Automated Gate Control
- Food and Beverage
- Printing
- Woodworking Machinery
3. ACS255-03U-02A3-2+B068+F278 Mains connection
- Supply voltage : 3-ph, 500 to 600 V ±10%: 1 to 20 hp
- Frequency : 48 to 62 Hz
- Phase imbalance : 3% maximum allowed
4. ACS255-03U-02A3-2+B068+F278 Motor connection
- Motor types : Asynchronous induction motors | Permanent magnet synchronous motors
- Frequency : 0 to 500 Hz, 0.1 Hz resolution
- Overload capacity : 150% of rated amps for 1 minute
- Switching frequency : 4-32kHz Effective
- Control types : Scalar U/f | Sensorless vector speed control | PM motor vector speed control | BLDC motor speed control (contact factory)
5. ACS255-03U-02A3-2+B068+F278 Environmental limits
- Temperature : Storage: −40 to 60°C | Operating: −10 to 50°C
- Relative humidity : 95% (without condensation)
- Vibration : Conforms to IEC 60068-2-6 | Sinusoidal Vibration | 10 - 57Hz @ 0.075mm Pk | 57 - 150Hz @ 1g Pk
6. ACS255-03U-02A3-2+B068+F278 Product compliance
- UL, cUL, C-Tick, CE listing/conformance; RoHS Compliant
7. ACS255-03U-02A3-2+B068+F278 Programmable control connections
- Power supply : 24 Volt DC, 100mA, Short Circuit Protected | 10 Volt DC, 5mA for Potentiometer
- Programmable Inputs : 5 Total | 3 Digital | 2 Analog / Digital selectable
- Digital inputs : 8 – 30 Volt DC, internal or external supply | Response time < 4ms
- Analog inputs : 0 - 10 VDC, 0 or 4 - 20mA, bi-polar | Resolution: 12 bits | Response time: < 4ms | Accuracy: < 1% full scale | Parameter adjustable scaling and offset
- Programmable outputs : 4 Total | 2 Analog / Digital | 2 Relay
- Relay output : Maximum Voltage: 250 VAC, 30 VDC | Switching Current Capacity: 6A AC, 5A DC
- Analog outputs : 0 to 10 Volt | 0 to 20mA | 4 to 20mA
- PI control : Internal PID Controller | Multi Setpoint Select | Standby / Sleep Mode | Boost Function
- Serial communication : Modbus RTU | 9.6 - 115.2 kbps selectable | 8N1, 8N2, 8E1, 8O1 | CANopen 125 - 1000kbps
