Lenze S94P01B2 - Manual (Page 46)

S94P01B2
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Parameters
5.9.7 Gain Scaling Window
Sets the total velocity loop gain multiplier (2 n ) where n is the velocity regulation window.
If, during motor tuning, the velocity gains become too small or too large, this parameter
is used to adjust loop sensitivity. If the velocity gains are too small, decrease the total
loop gain value, by deceasing this parameter. If gains are at their maximum setting and
you need to increase them even more, use a larger value for this parameter.
5.10 Tools
5.10.1 Oscilloscope Tool
The oscilloscope tool gives real time representation of different signals inside the
PositionServo 940 drive and is helpful when debugging and tuning drives. Operation
of the oscilloscope tool is described in more detail in the MotionView Software User’s
Manual. The following are the signals that can be observed with the oscilloscope tool:
Phase Current (RMS): Motor phase current
Phase Current (Peak): Motor peak current
Iq Current: Measures the motor Iq (torque producing) current
Motor Velocity: Actual motor speed in RPM
Commanded Velocity: Desired motor speed in RPM (velocity mode only)
Velocity Error: Difference in RPM between actual and commanded motor speed
Position Error: Difference between actual and commanded position (Step & Direction mode only)
Bus Voltage: DC bus voltage
Analog Input: Voltage at drive’s analog input
Absolute Position: Absolute (actual) position
Absolute Position Pulses: Absolute position expressed in pulses of the primary feedback device
Secondary Abs Position: Absolute (actual) position of secondary feedback device
Secondary Position Error: Difference between actual and commanded position of secondary feedback device
Target Position: Requested position
Target Position Pulses: Requested position expressed in pulses of the primary feedback device
Position Increment: Commanded position increment
5.10.2 Run Panels
Check Phasing
This button activates the Autophasing feature as described in section 4.6.2. However, in
this panel only the motor phasing is checked, the motor data is not modified.
5.11 Faults Group
Faults Group loads the fault history from the drive. The 8 most recent faults are displayed
with the newer faults replacing the older faults in a first-in, first-out manner. In all cases
fault # 0 is the most recent fault. To clear the faults history from the drive’s memory click
on the “Reset Fault history” button. Each fault has its code and explanation of the fault.
Refer to section 8.3 for details on faults.