170
Parameter listing and descriptions
ACH550-01 User's Manual
9909
MOTOR NOM POWER
type dependent
Defines the nominal motor power.
• Must equal the value on the motor rating plate.
9910
ID RUN
0=OFF/IDMAGN,
1=ON
This parameter controls a self-calibration process called the Motor Id
Run. During this process, the drive operates the motor in order to
identify its characteristics, and then optimises control by creating a
motor model. This motor model is especially effective when:
• Operation point is near zero speed.
• Operation requires a torque range above the motor nominal torque,
over a wide speed range, and without any measured speed feedback
(i.e. without a pulse encoder).
If no Motor Id Run is performed, the drive uses a less detailed motor
model created when the drive is first run. This “First Start” id
magnetisation model is updated automatically* after any motor
parameter is changed. To update the model, the drive magnetises the
motor for 10 to 15 seconds at zero speed.
* Creating the “First Start” model does require that either 9904 =
1 (
VECTOR
:
SPEED
), or 9904 = 3 (
SCALAR
:
FREQ
) and 2101 = 3 (
SCALAR
FLYST
) or 5 (
FLY
+
BOOST
).
Note:
Motor models work with internal parameters and user-defined
motor parameters. In creating a model the drive does not change any
user-defined parameters.
0 =
OFF
/
IDMAGN
– Disables the Motor Id Run creation process. (Does
not disable the operation of a motor model.)
1 =
ON
– Enables a Motor Id Run at the next start command. After run
completion, this value automatically changes to 0.
To perform a Motor Id Run:
1. De-couple load from motor (or otherwise reduce load to near zero).
2. Verify that motor operation is safe:
• The run automatically operates the motor in the forward direction –
confirm that forward rotation is safe.
• The run automatically operates the motor at 50…80% of nominal
speed – confirm that operation at these speeds is safe.
3. Check following parameters (if changed from factory settings):
• 2001
MINIMUM
SPEED
< 0
• 2002
MAXIMUM
SPEED
> 80% of motor rated speed.
• 2003
MAX
CURRENT
> 100% of
I
2N
value
• The maximum torque (parameters 2014, 2017 and/or 2018) > 50%.
4. On the control panel, select:
• Select PARAMETERS.
• Select group 99.
• Select parameter 9910.
Code Description
Range
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