ABB Aqua Drive - Variable Speed Drive - 5 HP/480 VAC/8.8A ND/6.9A HD
Swimming Pool Circulation Pump Variable Speed Drive
A complete integrated control system capable of controlling the circulation pump motor speed automatically throughout all phases of the filtration cycle including backwash, shut down or slow periods. The UL listed drive enclosed in a Nema12 enclosure shall include the following: Nema 12 enclosure with full gasket, steel enclosure powder coated. Vent fan and filter. Main disconnect and circuit breaker. Adjustable drive with graphics display PLC Pre-programmed with pump logic. Control transformer. Line reactor. Main motor contractor. By-pass contractor. Heavy duty bonding and grounding connections. ID labels on inside door and outside of enclosure. optional flow meter and saddle or pressure transducer.
When you need simplicity and intelligence in one self-contained solution the ACS550 covers a wide range of options. Ideal for variable and constant torque applications from pumps and fans to conveyors and mixers as well as many other variable and constant torque applications. Enjoy plug and play convenience right from the start. No customizing or special product engineering required. Monitor your savings easily with the built-in counters, which display energy savings in kilowatt hours, carbon dioxide emissions or local currencies.
- 0.75 to 355 kW/1 to 500 Hp
- Vector control
- Built-in EMC filter and Modbus fieldbus interface
- Swinging choke for superior harmonic reduction
- Coated boards for harsh environments
The bypass function is configured entirely of standard industrial control components. It includes two
electrically interlocked contactors, a motor overload relay, a control power transformer with primary and
secondary fusing, and a cover mounted DRIVE-OFF-BYPASS selector switch.
Bypass is accomplished by means of the two contactors. One is the bypass contactor used to connect
the motor directly to the power line. The other is the output contactor that disconnects the motor from the
drive output when operating in the bypass mode. This prevents the “back feeding” that would occur if line
voltage were applied to the drive output terminals. The drive output contactor and the bypass contactor
are electrically interlocked to prevent simultaneous operation.
Bypass Motor Overload Protection
Motor overload protection for the bypass mode is provided by a motor overload relay connected in both
the drive and bypass modes of operation. For motor full load currents through 80 amperes, the Motor
Overload Relay is an adjustable trip, bimetallic overload relay with a class 20 trip characteristic. Above 80
amperes, the Motor Overload Relay is an adjustable trip electronic overload relay with selectable class
10, 20 or 30 trip characteristics.
Externally Operated Devices
ACQ550 Drive W/ Bypass Packages include an input circuit breaker with a door mounted external
operating handle that is interlocked with the enclosure door and lockable in the OFF position with up to
three padlocks. The multi-lingual, alphanumeric drive control panel is mounted on the door of NEMA 1
and NEMA 12 enclosures, and on the drive within NEMA 3R enclosures. An optional drive service switch
(+F267) isolates the drive from the power source for service and provides superior functionality to a threecontactor
Drive Input Fuses Standard
Fast acting, current limiting drive input fuses are provided as standard to limit damage and allow for
possible drive repair if a short circuit or ground fault should develop in the drive input bridge. This is
particularly pertinent for drives at the higher ratings where it is generally more economical to repair rather
than replace the drive. The drive fuses are also intended to provide for immediate operation of the
bypass function after such a fault.
Drive W/ Bypass Packages are available in NEMA 1 and NEMA 12 enclosures through 100 HP at
208/240V, 400 HP at 480V and 150 HP at 600V. For outdoor applications, NEMA 3R enclosed packages
are available through 100 HP at 208/240V, 200 HP at 480V and 150 HP at 600V. NEMA 3R enclosures
are sheet steel construction with a tough powder coat paint finish for corrosion resistance and include a
100 watt, thermostatically controlled space heater and thermostatic control of the force ventilated cooling
system as standard.
Power and motor cable terminal sizes are shown in the Submittal Schedule Details and in the
Engineering Data and Ratings Table. The information provided is for connections to an input circuit
breaker or disconnect switch, motor overload relay and ground lugs. The table also lists torque that
should be applied when tightening the connections.
Connection Diagrams –
ACQ550-CC units are configured for wiring access from the top or the bottom. The following figures show
the wiring connection points. Refer to the ACQ550-U1 User's Manual for control connections to the drive.
Programable Drive PLC