Safety
information
Introduction
Product
Information
System
design
Mechanical
Installation
Electrical
Installation
Getting
started
Optimization Parameters
Technical
data
Component
sizing
Diagnostics
UL
Information
Unidrive M Regen Design Guide 29
Issue Number: 4
Table 3-12 Keypad identification
Table 3-13 Additional options
3.8 Items supplied with the drive
The drive is supplied with a copy of the Power Installation Guide and a copy of the Control Getting Started Guide, a safety information booklet and an
accessory kit box (see the relevant Power Installation Guide for details).
3.9 Regen components
The Regen filter components listed in this manual are the best match between the currently available filters and the Unidrive M ratings. In some cases
it is necessary to reduce Pr 05.007 (Rated Current) to avoid exceeding the filter current rating.
3.9.1 Regen inductor
The Regen inductor supports the difference between the PWM voltage from the Unidrive M Regen drive and sinusoidal voltage from the supply.
3.9.2 Switching frequency filter inductor
The inductors are standard three phase inductors. They carry only 50/60 Hz current with a negligible amount of high frequency current. The switching
frequency filter inductors are calculated at 4 % of the Regen drives rating using the following formula. A tolerance can be applied to the calculated
value in the range of, -10 % to +30 %.
L switching frequency filter mH = VLL / 3 x 1 / Irated x 0.04 x 1 / (2 x pi x f). Where:
VLL = Supply voltage line-to-line
f = Supply frequency
Irated = Drive rated current (normal or heavy duty)
SFF inductors should be wound with copper windings and a current density of no more than 2.5 Arms / mm².
This calculation also gives the correct inductance value for a 480 V, 60 Hz supply.
Type Keypad Name Further Details
Keypad
KI-Keypad Keypad with an LCD display
KI-Keypad RTC Keypad with an LCD display and real time clock
Remote-Keypad RTC Remote Keypad with an LCD display and real time clock
Type Option Name Further Details
Back-up
SD Card Adaptor Allows the drive to use an SD card for drive back-up
SMARTCARD Used for parameter back-up with the drive
The following Regen inductors are special parts being designed for very high levels of harmonic voltage and having a high saturation
current with good linearity below saturation. Under no circumstances must a part be used other than those listed.
When specifying a Switching Frequency Filter Inductor, ensure that it is fitted with thermal protection to disable the system in the event of
a thermal overload.
To Next Page
Loading...
