52 ACH550-UH User’s Manual
Start-Up
9905 MOTOR NOM VOLT 230…690 V (US) 1 V 230 V (US) 9
Defines the nominal motor voltage.
• Must equal the value on the motor rating plate.
• Sets the maximum drive output voltage supplied to the motor.
• The ACH550 cannot supply the motor with a voltage greater than the
mains voltage.
9906 MOTOR NOM CURR 0.15*I
2N
…1.5*I
2N
0.1 A 1.5*I
2N
9
Defines the nominal motor current.
• Must equal the value on the motor rating plate.
• Range allowed: (0.2…2.0) · I
N
(where I
N
is drive current).
9907 MOTOR NOM FREQ 10.0…500 Hz 0.1 Hz 60 Hz (US) 9
Defines the nominal motor frequency.
• Range: 10…500 Hz (typically 50 or 60 Hz)
• Sets the frequency at which output voltage equals the
MOTOR NOM VOLT.
• Field weakening point = Norm freq * Supply Volt / Mot Nom Volt
9908 MOTOR NOM SPEED 50…18000 rpm 1 rpm 1580 rpm (US) 9
Defines the nominal motor speed.
• Must equal the value on the motor rating plate.
9909 MOTOR NOM POWER 0.15…1.5*P
N
0.1 Hp 0.2 HP (US) 9
Defines the nominal motor power.
• Must equal the value on the motor rating plate.
9910 MOTOR ID RUN 0, 1 1 0 9
This parameter controls a self-calibration process called the
Motor Id Run. During this process, the drive operates the
motor in order to identify it’s characteristics, and then
optimizes 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” model is updated automatically* after any motor
parameter is changed. To update the model, the drive
magnetizes 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 FLYSTART) or 5 (FLYSTART + TORQ
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 – 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 > 130% of I
2N
value.
• The maximum torque (parameters 2014, 2017 and/
or 2018) > 50%.
4. At the Control Panel, select:
• Select Parameters
• Select Group 99
• Select Parameter 9910
Group 99: Start-up Data
Code Description Range Resolution Default S
Output voltage
Output
P 9907
frequency
P 9905
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