ABB FAQ's

Answer:
An LCL filter is a filter which consists of a inductor (L), a capacitor (C), and another
inductor (L) arranged in a T-section configuration. Each input phase of the ACS800-
U31 and -37 includes a symmetrical set of these components. The inductors are
series power components that carry the full current of the drive.
Answer:
ABB's ultra low harmonic drive solution uses advanced harmonics mitigation
technology that does not require external filters or multi-pulse transformer. These
drives utilize an active front-end rectifier with a LCL (inductor - capacitor - inductor)
filter. The low line harmonic content of the ACS800-U31 and -37 AC drives fulfil the
strictest harmonic requirements including IEEE519-1992 at the drive's input
terminals. This makes ABB's ultra low harmonic drive a simple and compact solution
for low harmonic AC drive.
Answer:
Ultra Low Harmonic is a marketing name applied to the ACS800-U31 and -37
products for indication that these products offer a new alternative to the conventional
low harmonic drive products and the ACS800-U31 and -37 have lower harmonic
distortion levels than an equivalent power 18-pulse solution.
Answer:

A typical problem in communicating with PLC's is due to the COM Port. Older computers have a designated COM1. New computers do not have a designated COM port and a USB to serial convertor is used. The convertor must be set up for a communication port (ex: COM1). Also, one should check the settings in the software, and adjust the COM port settings to match the settings of the convertor. For the AC010: From the top menu, go to: Online > Serial Interface Setup > Select the appropriate COM port (ex: COM 1, COM 2, COM 3, COM 4) to match the USB Convertor For the AC31 PLC's : From the top menu, go to: Online > Communication Parameters > Set-up the appropriate gateway with the COM port (ex: COM 1, COM 2, COM 3, COM 4) to match the USB Convertor.

Answer:

The first thing you need to know to is the Input & Output (I/O)count.
# of Digital Inputs (voltage levels 24Vdc, 110Vac)
# of Digital Outputs (voltage levels: 24Vdc, 110Vac, Relay)
# of Analog Inputs (4-20mA, 0-10V, TC, RTD, etc.)
# of Analog Outputs (4-20mA, 0-10V, TC, RTD, etc.)
Next you need to know if there are any Remote Drops and (how many, and how much I/O for each)
Next you need to know what kind of communication is required if any (Modbus, P-Bus, Ethernet, Devicenet, etc)

Answer:

When using semi-conductor fuses a type 2 co-ordination can be achieved. It is possible to use an MCCB or MMS instead but then with a type 1 co-ordination.

Answer:

The minimum and maximum value where we can guarantee full function is -15% to +10% of the rated value.

Answer:

It is possible with all types of ABB softstarters as long as the curve is sinusoidal.

Answer:

If the current transformers of the softstarter can be installed so that the measuring can be performed when by-passed a separate relay is not required; otherwise yes.