IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 53
4.3 Parameters
There are a variety of parameters that determine how the VFD functions. These parameters are programmed into
the VFD’s software as measurable values or options - both of which will be referred to in this manual as settings.
While some of these parameters are associated with one setting, others are tied to a number of possible settings.
Before shipping the VFD, Magnetek programmed initial settings in the VFD’s software so that most, if not all, of the
crane system requirements are supported. However, if it is necessary to change the initial settings, Magnetek
recommends that only qualified crane system technicians program the VFD. Security can be enabled by using the
Password and Access Level features. For more information on these security features, see Section 4.3.2 on
page 56.
The VFD can be restricted to allow access to only certain parameters, called User Parameters. To select these
parameters, see Section 4.3.2.9 on page 63.
Two other features to be aware of are Initialize Parameters (A01-05) and User Defaults (O02-03). Both of these
features are related and revert back to previously saved parameter settings. This is especially helpful when a
number of programming changes were made, but the previous settings may still be needed. To program these
features, see Section 4.3.2.7 on page 62 and User Defaults (O02-03) on page 183.
4.3.1 Parameter Modes
All parameters are organized under four modes:
4.3.1.1 Operation Mode
VFD operation is enabled. VFD status LED is lit.
4.3.1.2 Programming Mode
Parameter access levels, control method, motion, speed reference, and passwords are selected. Parameters are
set/read. Items to be set/read vary depending on the access level setting.
4.3.1.3 Auto-Tuning Mode
Automatically calculates and sets motor parameters to optimize VFD performance.
4.3.1.4 Modified Parameters Mode
Only parameters that have been changed from the default settings are shown.
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