Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) Commissioning - ForGe Control User Manual
Page 127
Rockwell Automation Publication 7000-IN012B-EN-P - June 2014
127
General Reference Appendix A
Table 14 - Typical Application Load Torque Profiles
(1)
Application
Load Torque
Profile
Load Torque as Percent of Full-Load Drive Torque
Required Drive
Service Duty Rating
Encoder Required for
Extra Starting
Torque?
Break-away
Accelerating
Peak Running
AGITATORS
Liquid CT
100
100
100
Heavy
Yes
Slurry
CT
150
100
100
Heavy
Yes
BLOWERS (centrifugal)
Damper closed
VT
30
50
40
Normal
No
Damper opened
VT
40
110
100
Normal
No
CHIPPER (WOOD)—
starting empty
CT
50
40
200
Contact factory
No
COMPRESSORS
Axial-vane, loaded
VT
40
100
100
Normal
No
Reciprocating, starting
unloaded
CT
100
100
100
Contact factory
Yes
CONVEYORS
Armored face
CT
175
150
200
Contact factory
Yes
Belt type, loaded
CT
150
130
100
Heavy
Yes
Drag type
CT
175
150
100
Contact factory
Yes
Screw type, loaded
CT
200
100
100
Contact factory
Yes
DRAG LINE
CT
100
200
200
Contact factory
Yes
EXTRUDERS
(rubber or plastic)
CT
150
150
100
Contact factory
Yes
FANS (centrifugal, ambient)
Damper closed
VT
25
60
50
Normal
No
Damper open
VT
25
110
100
Normal
No
FANS (centrifugal, hot gases)
Damper closed
VT
25
60
100
Normal
No
Damper open
VT
25
200
175
Contact factory
No
FANS (propeller, axial
flow)
VT
40
110
100
Normal
No
GRINDING MILL
(Ball/Sag Mill)
CT
175
180
100
Contact factory
Yes
HOISTS
CT
100
200
200
Contact factory
Yes
KILNS (rotary, loaded)
CT
250
125
125
Contact factory
Yes
MIXERS
Chemical
CT
175
75
100
Contact factory
Yes
Liquid
CT
100
100
100
Heavy
Yes
Slurry
CT
150
125
100
Heavy
Yes
Solids
CT
175
125
175
Contact factory
Yes
PULPER
VT
40
100
150
Contact factory
No