Parker ac890 - Page 323

10-21 Keypad Menus
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
QUICK SETUP MENU
890CD Common Bus Drive & 890SD Standalone Drive
PREF
6511/6901
Display
Description
Range
Default
21.01
V/F SHAPE
LINEAR LAW: This gives a constant flux
characteristic up to the BASE FREQUENCY
FAN LAW: This gives a quadratic flux
characteristic up to the BASE FREQUENCY.
This matches the load requirement for fan and
most pump applications
USER DEFINED: This gives a user defined flux
characteristic up to the BASE FREQUENCY
LINEAR
FREQUENCY
= BASE FREQUENCY
100%
CONSTANT
POWER RANG
OUTPUT VOLTS
f
B
f
B
QUADRATIC LAW
0 : LINEAR LAW
1 : FAN LAW
2 : USER DEFINED
0