With service function “Zero” the motor shaft moves into preferential position. It can implement a movement of up to ± 60°, in order to arrive there
Screen page "Oscilloscope"
Cycle time for the measurement acquisition ³ 250 µs.
Various value are graphically displayed in a diagram. You can display up to three variables simultaneously, as a function of time.
Start
Start recording the data.
Cancel
Stops recording the data
Save
Saves the recorded measurements to a data medium in CSV format (to be evaluated
with MS-Excel).
Load
Loads a CSV data file and displays the curves on the oscilloscope diagram.
Channel
Assignment of the displayed variables to the channels. At present, the following variables can be selected:
|
I_act |
Actual torque (current) |
I_CMD |
Torque setpoint |
|
v_act |
Actual velocity |
v_CMD |
Velocity setpoint |
|
VBUS |
DC-link (bus) voltage |
FERROR |
Following error |
|
Off |
Channel is not used |
user-defined |
Manual entry |
For each channel: the range of measurement can be selected automatically
(Auto checkbox is active) or manually (Auto checkbox is inactive, and
min./max. values have been entered).
Mem
If this is active when a new curve is recorded, the previous measurement
is saved, so that a comparison can be made between two measurements. The
previous measurement curve is displayed in a darker color than the latest
curve. The measurement range settings must be identical for both measurements.
If this is not so, the "Mem" checkbox will be de-activated and locked.
Auto/Min-Max
Change-over of the scaling of the coordinate system from automatic to minimum/maximum
Update
Loads and displays the latest set of data that was recorded, provided that
this set has not been erased or overwritten.
Trigger level
Y-value for triggering.
Trigger position
X-value for triggering (time axis)
Trigger edge
Triggering on the rising or falling edge.
Trigger signal
The current and speed variables can be used as trigger signals. In addition,
"Direct" can be used for immediate (independent) triggering. The setting
"user-defined" enables manual entry of a parameter using ASCII.
Resolution
The number of measured points per time unit (storage depth). Setting: fine,
normal, coarse
Time/Division
Scaling of the time axis. Select the time/division. Setting: 1 ... 500
ms/div
Total length of the time axis: 8 * x ms/Div
Service functions
Select one of the service functions described below. Click on the "Parameter" button and set the corresponding parameter. Then start the function by using the START button. The function will continue to be performed until you click on the STOP button or press the function key F9.
|
Direct current |
Apply a direct current to the motor, with adjustable size and electrical field-vector angle. The changeover from speed control to current control is made automatically, commutation is made independently of the feedback (resolver or similar). The motor locks into a preferred position. |
|
Speed |
Operates the drive at constant speed. An internal digital setpoint is provided (speed is adjustable). |
|
Torque |
Operates the drive with constant current. An internal digital setpoint is provided (current is adjustable). The changeover from speed control to current control is made automatically, commutation is made independently of the feedback (resolver or similar). |
|
Reversing |
Operates the drive in reversing mode, with separately adjustable speed and reversing time for each direction of rotation. |
|
Motion Task |
Starts the motion task, which is selected on the screen page "Input Service Parameters" |
|
Zero |
Function for the automatic setting of the feedback unit phase according to the phase position of the motor. This function is only available in OPMODE2 |
|
|
With service function “Zero” the motor shaft moves into preferential position. It can implement a movement of up to ± 60°, in order to arrive there |
Service start
Starts the selected service function.
Service stop
Stops the selected service function.
Cursor-function
When a data set is displayed (from a file, or by starting a recording)
the measured values for the signals are displayed in the co-ordinate system
for the selected time period by a mouse click. A click outside the coordinate
system, or a click while pressing the shift-key, resets the values in the
display to 0.
Default settings
Resets all functions of the screen page to the default settings.