Rockwell Automation Allen-Bradley 2094-BC01-M01-S, User Manual

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70 Rockwell Automation Publication 2094-UM001D-EN-P - May 2010
Chapter 4 Kinetix 6000 Connector Data
Figure 32 - Load Duty-cycle Profile Example
Table 39 - Peak Duty Cycle Definition of Terms
D = T
T
PK
x 100%
I
Cont
I
Base
I
PK
T
PK
T
Term
Definition
(1)
(1) All current values are specified as RMS.
Continuous Current Rating (I
Cont
) The maximum value of current that can be output continuously.
Peak Current Rating (I
PKmax
)
The maximum value of peak current that the drive can output. This
rating is valid only for overload times less than T
PKmax
.
Duty Cycle (D)
The ratio of time at peak to the Application Period and is defined
as:
Time at Peak (T
PK
)
The time at peak current (I
PK
) for a given loading profile. Must be
less than or equal to T
PKmax
.
Peak Current (I
PK
)
The level of peak current for a given loading profile. I
PK
must be
less than or equal to the Peak Current Rating (T
PKMAX
) of the
drive.
Base Current (I
Base
)
The level of current between the pulses of peak current for a
given loading profile. I
Base
must be less than or equal to the
continuous current rating (I
Cont)
of the drive.
Loading Profile
The loading profile is comprised of I
PK
, I
Base
, T
PK
, and D (or T)
values and completely specify the operation of the drive in an
overload situation. These values are collectively defined as the
Loading Profile of the drive.
Application Period (T)
The sum of the times at I
PK
(T
PK
) and I
Base
.
D = T
T
PK
x 100%