Rockwell Automation 1305 AC Drive, Firmware 1.01-3.00 User Manual - Manual (Page 81)

Chapter 5 – Programming
5-13
Set Up Group (cont.)
[Sec Curr Limit] Parameter # 141 Factory Default 0% of Drive Rated Current ➁ [Sec Curr Limit]
Parameter Type Read & Write Minimum 0% of Drive Rated Current ➁
When this parameter is set to zero, the [Current Limit]
setting is used throughout the frequency range. When set
to a value other than zero, the [Current Limit ] value will
be active up to the [Base Frequency] setting, then tapers
down between [Base Frequency] and 1.5 times [Base
Frequency]. At frequencies above 1.5 times [Base
Frequency], the [Sec Curr Limit] setting is the active
current limit value. Units 1% Maximum 150% of Drive Rated Current ➁
Figure 5.5 Current Limit Setting
% of Drive Output Current
[Base Frequency]
(17)
1.5 Times
[Base Frequency]
[Maximum Frequency]
(19)
a [Current Limit]
(36)
a [Sec Curr Limit]
(141)
(17)
Single Phase Input Ratings
The [Current Limit], [Overload Current] and [Sec Curr
Limit] parameters are set based on the drive rated output
current for three phase input ratings. When setting these
parameters for single phase input ratings, use the following
formula to determine the proper parameter setting:
1 O Output Current➂ X Percent (0 to 150%)
3 O Output Current ➂
Parameter setting
in percent
=
➁ The Drive Rated Ouput Current is based on three phase input ratings. See Single
Phase Input Ratings instructions.
➂ See Table 1.A on page 1-6.