Unico Digital Inverter 1.1kW-500kW / 1105 Inverter
The 1105 digital AC inverter provides flexible, efficient and cost-effective solutions to a range of control needs. It combines the latest IGBT-based PWM and digital-signal processor technologies with a revolutionary, patented digital-current regulator to deliver optimum performance, full programmability, and simplicity of operation. Compact and rugged, the inverter comes as an open chassis or in a NEMA 4 enclosure. Either type can be foot-mounted to a sub-plate or flange-mounted through a cutout, to dissipate heat outside an enclosure.
The 1105 offers performance capabilities to suit a broad range of applications where variable-frequency AC or conventional DC inverters are normally used. It can be configured for either constant-load, variable-load, or extended-load applications. A variety of general-purpose and application-engineered software options provide features optimized for specific customer requirements, such as blower and pump motors.
The keypad and liquid crystal display provide a simple interface for setting and viewing operating parameters and diagnostics. All controller settings are made digitally through the keypad. Readouts and fault messages are displayed in plain language. A help feature provides on-line assistance at the touch of a button.
The 1105 includes a built-in link choke that provides near-unity overall power factor at all motor speeds as well as low harmonic line currents.
The 1105 monitors its operating conditions and provides a comprehensive set of overload, short circuit, and other protective features. Faults are displayed in plain language along with the operating conditions at the time of occurrence. A log stores the last three faults as well as the buss voltage, motor current, output frequency, operating mode, and time of the most recent fault.
The 1105 features a fully-isolated EIA RS-422/485 serial interface that allows a process control computer, building automation system, or other host computer to set up, monitor, and control the drive using an ANSI standard protocol. An EIA RS-232 port is also available for direct connection to most types of personal computers. Optional DF1 and RTU protocols allow direct connection to Allen-Bradley and Modicon programmable controllers.
• All-digital control for repeatable operation
• 24-bit digital-signal processor (DSP) for fast, dynamic response
• 8 kilobyte battery backup memory for application setup data
• 48 kilobyte scratch pad memory and 1.5 megabyte firmware memory
• Clock/calendar maintains accurate time during power outage
• Sine-coded PWM or modified six-step waveform outputs for improved performance
• High-switching-frequency IGBT devices for smooth, quiet operation
• Digital current regulator for reduced fast response
• Internal control loop for maintaining output during sudden load changes
• Variable frequency control for simple applications
• Integral DC link choke for high power factor and low total harmonic distortion
• Power-loss ride-through for reducing nuisance trips
• Master-slave operation using either analog inputs or high-speed serial link
• User-programmable analog and digital inputs and outputs
• Ideal for applications requiring NEMA 4 enclosures
• Automated setup features do not require chart recorders or meters
• Software calibration and adjustment eliminates tuning components
• Digital parameter adjustment for precise and repeatable settings
• Software input and output scaling eliminates potentiometers
• Complete, self-contained package requires minimal option boards
• Identical control boards across full power range reduce need for spare parts
• Touch keypad for easy parameter adjustment and access to displays
• Two-line, descriptive, plain-language display
• Numerical readouts and bar graph display
• Comprehensive fault diagnostics displayed in plain language
• Real-time information and three-fault log
• Optional DriveLink™ software for managing multiple drives from a personal computer
• Extensive electronic protection circuits
• Tolerant of AC line voltage and frequency fluctuations
• Multilevel security code prevents unauthorized parameter changes
• Lockout of local operator controls, for safe remote operation
Input Supply Voltage Voltage tolerance Frequency Power factor |
200 to 240 or 380 to 480 V AC, three-phase Phase sequence insensitive –10% of minimum, +10% of maximum 47 to 63 Hz Displacement: 0.99 at all loads Overall: 0.94 at rated load |
Voltage Service Conditions |
Zero to input supply voltage, three-phase
|
Operating temperature Storage temperature Operating humidity Altitude |
32° to 104° F (0° to 40° C) 5° to 158° F (–15° to 70° C) 95% maximum, non-condensing To 3,300 ft. (1,000 m) without de-rating |
Frequency Control Hz with digital input |
|
Analog Inputs Analog Outputs Digital Inputs Digital Outputs |
|
Asynchronous port Synchronous port |
EIA RS-232 and RS-422/485, isolated, 0.3 to 19.2 kbaud ANSI-x3.28-2.5-A4 protocol standard; Optional Allen-Bradley DF1, Modicon RTU, and Johnson Controls N2 protocols EIA RS-485 for high-speed master/slave networking |
Programmable Parameters
• Set point • Set point minimum • Set point maximum • Set point units label, • Scaling, precision • Set point source • (3) skip frequencies • (3) skip bandwidths • Minimum / maximum • Current limit • Restart retries / delay • Analog I/O scaling / polarity • User analog input mode |
• User I/O parameter selections • S-ramp profile smoothing • Switching frequency • Master / slave select / source • Slave ratio / position phasing • Keypad enable • Security code |
Status Displays
• Buss voltage • Power factor • Output current • Output frequency • Power consumption |
• Energy consumption • Accumulated thermal load • Accumulated time run • Fault log and conditions • Input status |
• Ground fault • Output phase-to-phase short circuit • DC buss over-voltage • DC buss under-voltage • Instantaneous over-current • Output overload • Heat sink over-temperature • Ambient over-temperature |
• Power transistor fault |
Input Voltage | Constant-Torque Applications | Variable-Torque Applications | Extended-Torque Applications |
230 VAC |
1 1/2-1 5hp(1.1-11kW | 2-20 hp (1.5-15kW -- | |
380 VAC | 1 1/2-25 hp(1.1-18kW) | 2-30 hp (1.5-22kW -- | |
460 VAC | 1 1/2-25 hp(1.1-18kW) | 2-30 hp (1.5-22kW 25-40 hp (18-30 kW) |
Consult factory for other powers. Other voltages require appropriate de-rating.