Rockwell Automation 1336T FORCE Series B - Manual (Page 105)

Chapter 4
Startup
4–14
or
AB0282A
or
AB0282A
Scroll to the Autotune Diag Sel parameter. Set Bit
0 to a value of 1, and then press the ENTER key
and the START button. This will execute the In-
verter Transistor Diagnostics test which will take
300 mSec to run. Bit 0 will automatically be set
back to 0 upon successful completion of the Invert-
er Transistor Diagnostics test. If the test fails
(non–zero value with flashing CP or VP light), re-
fer to the Startup troubleshooting section of this
manual (Chap 6). While you are performing the
Inverter Transistor Diagnostics Test the HIM dis-
play should appear as shown below:
The purpose of the Inverter Transistor Diagnostic
Test is to help you find any problems that might
exist in the installation, as well as taking care of
setting offset in both the Id & Iq regulators
(Parameters 260 & 261 in the linear list).
The next test you must run is the Phase Rotation
Test. This is accomplished by setting bit 1 to a
value of 1 in the Autotune Diag Sel parameter
(Parm #256) and pressing the START key to
execute the test. The HIM display should appear as
shown below:
Autotune Diag Sel
00000000
00000001
Bit 0
Autotune Diag Sel
00000000
00000010
Bit 1
When the START key is pressed, the motor should
rotate at a rate specified by both Phase Rotation
Frequency Ref and a current output as specified by
the Phase Rotation Currency Ref. Typically, default
values for both Ph Rot Freq Ref and Ph Rot Cur Ref
will work correctly.
Interpreting Phase Rotation Results:
1. In phase rotation, the motor should turn in the
direction you define as positive velocity. If the
motor turns in the wrong direction, shut the drive
down, remove power and reverse any two motor
leads.
2. If no motor rotation occurs, refer to the Startup
troubleshooting section of this manual.
3. In phase rotation with the motor now turning in
the positve direction, the sign of the velocity
feedback (P146) should be positive. If it is
negative, reverse the A and /A (NOT A) encoder
leads or the B and /B (Not B) leads. Note: Step 3
is skipped with a
sensorless drive.
ATTENTION: During this
portion of the Autotune
Sequence reverse motor
rotation is a possiblity. If
your process equipment
could be damaged by
rotation in the wrong
direction you must uncouple
the motor from the load
before running the Phase
Rotation test.