Rockwell Automation Publication 7000L-UM301F-EN-P - March 2020 415
Catalog Number Explanation Appendix A
PowerFlex 7000 Drive
Selection Explanation
The PowerFlex 7000 medium voltage AC drive selection tables are based on two
types of drive service duty ratings:
• Normal Duty (110% overload for one (1) Minute, once every 10
minutes) – used for Variable Torque (VT) applications only.
Drives with this rating are designed for 100% continuous operation, with
110% overload for one (1) minute, once every 10 minutes.
• Heavy Duty (150% for one (1) Minute, once every 10 minutes) – used
for Constant Torque (CT) or Variable Torque (VT) applications.
Drives with this rating are designed for 100% continuous operation, with
150% overload for one (1) minute, once every 10 minutes.
Service Duty Rating, Continuous Current Rating & Altitude Rating
Code
There are five different codes that define service duty and altitude in the drive
catalog number per the table on page 413
.
For example:
Catalog number 7000 – A105
DEHD-R18TX, has a continuous current rating
of 105 amps, with a “normal duty” service rating up to 1000 meters altitude.
Catalog number 7000 – B105
DEHD-R18TX has a continuous rating of 105
amps with a “normal duty” service rating up to 5000 meters altitude. Please note
that the ambient temperature rating of the drive is reduced at higher altitudes. If
40°C ambient is required at 1001-5000 meters altitude, then a rating code of Z is
required.
Catalog number 7000 – C105
DEHD-R18TX, has a continuous current rating
of 105 amps, with a “heavy duty” service rating up to 1000 meters altitude.
The factory should be contacted for assistance sizing air-cooled drives that
require greater than 150% overload. Refer to Table 32
for typical application
load torque profiles, to determine which drive overload rating is best suited for
your application.
To Next Page
Loading...
Need help?
General
