Start, stop, direction and speed control, Variable torque fan/pump applications – Rockwell Automation 25B PowerFlex 520-Series Adjustable Frequency AC Drive User Manual User Manual
Page 57
Rockwell Automation Publication 520-UM001G-EN-E - September 2014
57
Start Up
Chapter 2
16.
Verify the drive and motor perform as specified.
•
Verify that the Stop input is present or the drive will not start.
•
Verify the drive is receiving the speed reference from the correct place
and that the reference is scaled correctly.
•
Verify the drive is receiving start and stop commands correctly.
•
Verify input currents are balanced.
•
Verify motor currents are balanced.
17.
Save a backup of the drive settings using the USB utility application. See
for more information.
Start, Stop, Direction and Speed Control
Factory default parameter values allow the drive to be controlled from the
keypad. No programming is required to start, stop, change direction and control
speed directly from the keypad.
If a fault appears on power up, see
Fault Descriptions on page 147
for an
explanation of the fault code.
Variable Torque Fan/Pump Applications
For improved motor tuning performance when using a premium efficient motor
on a variable torque loading SVC mode, set A530 [Boost Select] to 2 “35.0, VT”.
IMPORTANT
If I/O Terminal 01 is used as a stop input, the jumper between I/O
Terminals 01 and 11 must be removed.
IMPORTANT
To disable reverse operation, see A544 [Reverse Disable].