ACU DRIVE XS

Click on the Picture for Image Gallery

• High efficiency up to 98% - adjusts drive input voltage for best efficiency
• Automatic Energy Optimization
• Eliminates need for motor starters
• Flow compensation of setpoint
• Built-in DC link reactors for harmonic suppression - no need for external AC input line reactors
• Integrated disconnects, fusing and optional bypasses.
• Sensorless control
• Dry pump and end of curve detection
• 2-step ramps (initial ramp)
• Real-time clock for time based operation
• Overload trip protection protects motor and Acu Drive from Voltage Spik phase unbalance
• Indoor & Outdoor-rated enclosures
• Intuitive user interface with local control panel
• One drive type for the full power range
• For use with 3 phase pumps only
• Can connect to an IntelliTouch system
• Start-up included with every drive (technical training option available)
• Off-hour flow management capability
• Does not blow corrosive filter-room air across the circuitry
• Up to a 6 year on-site warranty available
• AcuDrive XS Pool Pump Video

• Performance Curves
• Specifications
• Owner's Manual

• Unique cooling concept Improves efficiency Reduces contaminants in electronics
• Fieldbus options (A-options) Select any common fieldbus protocols
• Local Control Panel (LCP) Six-line graphical LCP display
• Up to 6 digital inputs
• Two 0-10 analog inputs
• 24V supply option (D-option)
• Conformally coated PCBs (optional) Durable in aggressive environments
• AC main disconnect (optional)
• Every Acu Drive XS, regardless of horse power size, has the same user interface and basic features
• Every Acu Drive XS is produced and factory tested with a load connected, as a complete assembly
• Built in DC-link reactors reduce harmonic noise and protect the drive. Integrated EMC filters are also available to minimize RFI interference (meets EN55011 A2, A1 or B)
• Energy savings using an Acu Drive XS are achieved with even a modest reduction in speed

• Main Supply

  Supply Voltage	200-240V±10%
  Supply Voltage	380-480V±10%
  Supply Voltage	525-690V±10%
  Supply Frequency	50/60 Hz

• Digital Inputs:

  Programmable digital inputs (standard)	6
  Additional digital inputs with MCB101	2

• Output Data (U.V.W)

  Output Voltage	0-100% supply
  Output Frequency	0-120Hz
  Rated motor frequency	50/60Hz
  Ramp times	1-3600 sec.

Graphical Display

• Informative overview
• Six lines of display
• Graphical or numerical display of information
• Readout in user-selectable engineering units
• Select from up to 27 languages
• Backlit for increase visibility

Quick Menues

• User-personalized Quick Menu
• Changes Made Menu displays the parameters to which changes have been made
• Function Setup Menu provides quick set-up for specific applications
• Logging Menu provides access to operation history

Illumination

• Illuminated LED's indicate which function is active

Menu Structure

• Based on the field-proven matrix system used in previous series drives
• Menu shortcuts access specific functions
• Edit and operate in different setups simultaneously

Additional Buttons

• Info: an "onboard manual" that provides specific information about each parameter
• Cancel: exits the current parameter without saving changes
• Alarm log: easy access to a list of all previous alarm conditions

The Acu Drive XS maximizes system reliability with built-in protection against:

Minimize motor noise and heating with ASFM

• With the ASFM (Adjustable Switching Frequency Modulation) function, the switching frequency is adjusted automatically in relation to the speed of the motor. As speed is reduced, the switching frequency increases to ensure optimally low noise and reduce motor heating
• Input line protection from extreme running conditions

Short circuit

• The Acu Drive XS is protected against short circuits by measuring the current in each of the three motor phases. A short circuit between two output phases will shut down the drive as soon as the current exceeds the maximum value

Line disturbances and transients

• To protect itself from AC line voltage disturbances, the drive monitors all three phases and interrupts drive operation in the event of phase loss or imbalance

Voltage sags and surges

• The Acu Drive XS is designed for a wide range of operating conditions. The 480 volt drive will operate from 342-528VAC. The 230 volt drives will operate on 180-264VAC

Maximum Protection Features:
Output protection for longer motor life

• Acu Drive XS incorporates both DC-link reactors or motor output protection as standard design features

Thermal protection for the drive and motor

• The ETR (Electronic Thermal Relay) is an open loop method built into the Acu Drive XS software to guard against motor overheating, requiring no additional sensors or wiring
• This function is UL recognized (Class 20) as an effective guard against motor thermal overload

The Acu Drive XS has built-in thermal protection and also accepts thermistor signal input from the motor to create closed loop thermal protection for the entire system.

Initial final ramp

Initial ramp provides rapid acceleration of pumps to a a desired minimum speed, at which time the normal ramp takes over. This prevents damage to thrust bearings and overheating of the pump.
The final ramp decelerates pumps to avoid unintended closure of check values and water hammer.