S94P01B
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6.9.7 Second encoder I-gain (Integral)
This parameter sets second encoder position I-gain when the drive is in a dual-loop
configuration.
6.9.8 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.
6.10 Tools Group
6.10.1 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 position (actual position)
Target position:
Requested position
6.10.2 Run Panels
Check Phasing
This button activates the Autophasing feature as described in section 5.6.2. However,
in this panel only the motor phasing is checked, the motor data is not modified.
6.11 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. See section 7.3 for details on faults.
Summary of Contents for PositionServo 940
Page 1: ...Model 940 USERS MANUAL S94P01B S929...
Page 12: ...S94P01B 10 3 2 Clearance for Cooling Air Circulation S924...
Page 66: ...S94P01B 64 Notes...
Page 67: ......
