VARISCO PSDrive 11, Инструкция по установке, эксплуатации и обслуживанию

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WARNING
During calibration the motor coils are heated by the test current. If the motor is self-venti-
lated the absence of motor rotation does not allow the heat to be dispersed by force. It is
therefore recommended to allow the motor to cool between one calibration and the next.
DANGER
During the calibration process the motor remains stationary but is powered for the entire
calibration period. Disconnect the device from the power supply before any intervention
on the equipment and on the loads connected to it.
If the calibration process is not successful, it is necessary to check:
• The connections between the inverter and the load (including any motor filters in between).
• The rated voltage, frequency and current values set.
NOTE
The motor cannot be started until the calibration process has been completed.
NOTE
If the calibration process cannot be completed, it is possible to manually enter the param-
eters or stator resistance (Rs) and stator inductance (Ls) in the motor parameters menu
(default password 002). These data can be provided by the motor manufacturer or ob-
tained through measurements. If you do not have these data and the self calibration proc-
ess is not successful, it is recommended to contact technical assistance.
9.4.3. Adjustment of the FOC control
The FOC control algorithm checks current (torque) and speed with defined response dynamics.
The FOC dynamic is set by default to a value sufficient to guarantee precise and oscillation-free control
in most applications.
In some cases, however, it may be necessary to increase (if there are frequency oscillations) or to lower
(in the event of overcurrent or igbt trip alarms) the "FOC dynamic" setting in the motor parameters
menu (default password 002) according to the following table :
Configuration FOC dynamic
Motor cables shorter than 100 m and no filter between inverter and motor. 200
Motor cables shorter than 100 m and a dV/dt filter between the inverter and the motor. 150
Motor cables longer than 100 m and a dV/dt filter between the inverter and the motor. 100
Presence of a sinusoidal filter between the inverter and the motor. 50 or 40 or less
PSDrive
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