Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 97)

Rockwell Automation Publication 20P-UM001I-EN-P - February 2013 97
Drive Start Up Chapter 2
32. If you are using the HIM on the drive cover (Port 1) for the speed
reference, complete the following steps:
❏ Access the “DPI Inputs” group.
❏ Set Par 1323 [DPI P1 Select] to 1“Speed Ref A”.
❏ Access the “Analog Inputs” group.
❏ Set Par 70 [Anlg In1 Sel] to 0 “Not Used”.
33. If you are using a source other than the HIM for the speed reference,
complete the following steps:
❏ Select either the appropriate [DPI Px Select] parameter, and set it to
1“Speed Ref A,” or the appropriate [Anlg Inx Sel] parameter, and set
it to 1“Speed Ref A.”
❏ Set Par 70 [Anlg In1 Sel] to 0 “Not Used”, if appropriate.
Tune the Current Regulator
Complete this test before running the drive for the first time. Upon completing
this tuning procedure, the armature resistance value is stored in Par 453 [Arm
Resistance] and the armature inductance value is stored in Par 454 [Arm
Inductance].
IMPORTANT Because the field cannot be disconnected in a permanent magnet motor,
tuning the current regulator, as directed below, will not work. The appropriate
procedures for tuning the current regulator for a permanent magnet motor will
be performed later in the Drive Start Up procedures. If using a permanent
magnet motor, continue with Verify Motor Rotation and Run Feedback Polarity
Checks on page
99 .
IMPORTANT If the PowerFlex DC drive is wired for two-wire control, with a digital input
programmed for “Run,” the HIM Start/Stop cannot be used for autotune.
Maintain the “Run” input for autotune.
ATTENTION: Do not attempt to perform the “Tune the Current Regulator”
procedure with a PowerFlex DC drive and permanent magnet motor
combination. Drive and/or motor damage may occur.
ATTENTION: Prior to tuning the current regulator, you must provide a hard
wired maintained external operator accessible coast/stop push button to disable
the machine in case of improper operation. Uncontrolled machine operation can
result if this is not done. Failure to observe this precaution could result in severe
bodily injury or loss of life.
ATTENTION: Prior to tuning the current regulator, uncouple the motor from
equipment or processes that may be damaged by incorrect rotation of the motor
or speed references.