Optidrive P2 Advanced User Guide Revision 2.00
Rated Temperatures and De-rating curves
6. Rated Temperatures and De-rating curves
6.1. Thermal Management
The Optidrive P2 product range has an integrated Thermal Management function. This function allows the drive to automatically reduce the
effective switching frequency when operating at higher heatsink temperatures to avoid the risk of an over temperature trip. The value set in
the Thermal Management parameter (P6-02) determines the lowest switching frequency the drive is permitted to automatically reduce to.
Table 1 below shows the heatsink temperature threshold points at which thermal management occurs.
Effective Switching Frequency
(Where Supported)
Temperature Limit for Switching
Frequency Redcution
Temperature Limit for Over
Temperature Trip
NOTE
The available range of switching frequencies is subject to the drive frame size, power rating and voltage rating.
6.2. De-rating Curves Explained
The following de-rating curves each show the maximum continuous output current against drive heatsink temperature. In each graph the
curves represent the performance of the largest rated drive for that frame size and rated voltage for each available switching frequency.
Where lower power rating variants are available their limits are shown as dotted lines to intersect the curves.
To Next Page
Loading...