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Adjustments
ADJUSTMENT #01
SET CURRENT
ADJUSTMENT #02
ADJUSTMENT #03
ADJUSTMENT #04
SET BATTERY TYPE
SET SAT. FREQ.
OVERSAT FREQ
MAXIMUM SLIP
AUX VOLTAGE #1
AUX VOLTAGE #2
NO LOAD CURRENT
ZERO SP POT
This setting is used to acquire the motor resistance.
This setting is factory adjusted to calibrate the ADJUSTMENT #03 and #04 below.
Motor resistance in milliohms. This is the resistance of the motor measured between
two motor terminals. The motor resistance may be either self-acquired or may be set
by rolling up or down this adjustment.
(Factory adjusted). Parameter to compensate for the gain of the current amplifier in
phase W.
(Factory adjusted). Parameter to compensate for the gain of the current amplifier in
phase V.
Set this adjustment to the nominal battery voltage. Pay attention, never set SET
BATTERY TYPE higher than 36 V for a 24/36 V controller. Never set SET
BATTERY TYPE lower than 36V for a 36/48V controller.
Set this adjustment to the corner frequency of the motor. SET SAT FREQ is to be
meant as the maximum frequency at which the motor supplies the maximum torque
(it is the superior limit of the constant torque characteristic). Frequency higher than
SET SAT FREQUENCY gets the motor weakened.
The maximum motor frequency is set with the sum between SET SAT FREQ and
OVERSAT FREQ. OVERSAT FREQ is the increment, over the SET SAT
FREQUENCY, in which the steering motor works with degraded flux (weakening
area). Default choice is 1 Hz (i.e. the steering motor never works in the weakening
region).
(Factory adjusted). MAXIMUM SLIP modifies the acceleration and deceleration
ramp for the frequency in the motor. Higher MAXIMUM SLIP gets faster acceleration
and deceleration ramp.
If the encoder is used for the motor control (ENCODER CONTROL is On),
MAXIMUM SLIP has another meaning: it is the slip to be applied when the control is
sourcing the maximum current.
(Factory adjusted). This is the self-acquired offset value of the stepper motor line
connected to CNA#9. The default value is 2.500 mV and can be re-acquired by
rolling the DEBUG OUTPUT to 0.
(Factory adjusted). This is the self-acquired offset value of the stepper motor line
connected to CNA#8. The default value is 2.500 mV and can be re-acquired by
rolling the DEBUG OUTPUT to 0.
In order it shall be possible to weaken the steering motor when lightened (reducing
power loss in the motor), it is necessary to specify the current the motor drains when
working full flux and without load (NO LOAD CURRENT). To find this value it is
necessary to set the DEBUG OUTPUT to level 10 and to measure the current in the
motor when running without load and a frequency close to SET SAT FREQ/2.
(Twin Pot version only). This adjustment is used to self-acquire the voltages on the
twin potentiometers when the steer handle is released in its straight ahead position.
Just push the enter button with a released steer handle to record the new ZERO SP
POT value.
Description
7-42
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