Appendix
– PM Alignment Procedure
11
PM Alignment Procedure
Before the motor can run, a rotor alignment to
find the motor poles needs to be performed.
The 3 method to find the poles are: High
Frequency (HF) Injection, Open-Loop Align,
and Auto-Align.
HF Inject (preferred method)
High Frequency Injection is a function that will
locate the poles without the need to spin the
motor. This procedure should be done with the
brakes set. This is especially useful for
replacing encoders. HF Inject may be enabled
two different ways, one way is to enable the
function through the operator and the other is
to enable HF Inject by giving the drive a run
command. In order for the function to properly
work, all faults must be cleared, the brake
must be set and the motor contactor must pull
in.
1. Press the RIGHT or LEFT arrow until you
see the U0 Utility menu as shown below.
2. Use the UP or DOWN arrow to navigate
through the U0 menu to the U10 sub-menu
as shown below.
3. Press Enter, then UP arrow until Alignment
method is shown. Press Enter, then the
UP arrow until HF Inject is shown. Then
press Enter to save the setting.
4. Press the DOWN arrow until ALIGNMENT
is displayed. Press Enter and UP arrow to
change the ALIGNMENT from DISABLE to
ENABLE then press Enter as shown
below.
5. Press the DOWN arrow to see BEGIN
ALIGNMENT.
Note: If the operator displays the screen
below, verify ALIGNMENT (U10) is set to
enable, there are no active faults (FAULT
LED is off), and the drive is not in a RUN
mode (RUN LED is off).
6. If
YES
is selected, the drive will
immediately start sending current to the
motor and calculate the alignment value.
NOTE: When using YES, make sure that
the contactor is closed before YES is
entered.
7. If
ON RUN
is selected, the drive expects
the following sequence to occur:
a. Car Controller asserts DRIVE ENABLE
b. Car Controller issues RUN Command
c. Drive asserts CLOSE_CONTACT (all
other outputs will stay false during the
Alignment excluding READY TO RUN
which will stay active)
d. Motor Contactor closes
e. Drive starts Alignment procedure with the
brakes set (not picked)
10:00 May 4
U0 UTILITY
U1 PASSWORD
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
10:00 May 4
U0 UTILITY
U10 ALIGNMENT
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
U10 10:00
Alignment Method
HF INJECT
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
U10 10:00
ALIGNMENT
ENABLE
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
U10 10:00
BEGIN ALIGNMENT?
NO
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
U10 10:00
NOT AVAILABLE AT THIS
TIME
READY
RUN
USER
TORQUE
LIMIT
FAULT
SUBMENU
DATA ENTRY
