Parameter Descriptions 2-79
7000-TD002A-EN-P – September 2007
Capacitor Current Command Gain [Icd Command Gain]
Linear Number: 107
Default Value: 0.5
Minimum Value: 0.0
Maximum Value: 1.0
Access Level: Advanced
Read/Write: Read/Write
This parameter specifies the gain of the capacitor current compensation for synchronous motors. When
this parameter is set to its minimum value of 0.0, all the current for the motor filter capacitor is supplied by
the drive. The line current is higher than the motor current and the motor operates at approximately unity
power factor. When this parameter is set to its maximum value of 1.0, the motor supplies all the current
for the motor filter capacitor. The line current is less than the motor current and the motor operates at a
lagging power factor with reduced field current. When this parameter is set to its default value of 0.5,
approximately half the motor filter capacitor current is supplied by the drive and half by the motor. The
line current and the motor current are approximately equal and the motor power factor is slightly lagging.
This parameter is not used for induction motors.
Contact factory for availability
Field Current Command Bandwidth [Field Bandwidth]
Linear Number: 106
Default Value: 10.0 r/s
Minimum Value: 0.1 r/s
Maximum Value: 100.0 r/s
Access Level: Advanced
Read/Write: Read/Write
This parameter specifies the bandwidth of the field current command for synchronous motors. It should
be set to a value that is less than the bandwidth of both the flux regulator and the field current control.
Contact factory for availability
Base Speed [Base Speed]
Linear Number: 98
Default Value: 60.0 Hz
Minimum Value: 25.0 Hz
Maximum Value: 100.0 Hz
Access Level: Service
Read/Write: Read/Write
This parameter specifies the frequency at which field weakening begins. Base Speed is normally set
equal to the rated frequency of the motor. It can be set to a lower value only if the motor is specially
designed to operate at a higher than normal flux level without saturating.
Flux Reference Step [Flux RefStep]
Linear Number: 102
Default Value: 0.000 pu
Minimum Value: 0.000 pu
Maximum Value: 0.100 pu
Access Level: Service
Read/Write: Read/Write
This parameter specifies the magnitude of the step that is added to the flux reference to demonstrate the
step response of the flux loop. It is not saved and is initialized to zero at power-up. This parameter is
also used during manual drive tuning.
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