Manual "Current/Frequency" Test Mode - Lenze i950 Commissioning Manual

Configuring the motor control
Testing the motor control

Manual "current/frequency" test mode

13.11.3 Manual "current/frequency" test mode
Preconditions for the performance
The motor must rotate freely.
•
The inverter is error-free and in
•
Functional description
In this test mode, three phase currents are injected into the connected motor after the inver-
ter is enabled.
Adaptation of the phase currents:
•
Parameter
0x2835:001
0x2835:002
0x2835:003
Reading out the present phase currents:
•
Parameter
Advantages compared to the manual "voltage/frequency" test mode
The current cannot be set freely but is adjusted to a defined value.
•
If a synchronous motor is connected, it is possible to predict the torque.
•
Response of the motor during performance
The motor moves as a function of the set output frequency.
•
After the inverter has been enabled, the synchronous motor makes a jerky com-
pensating movement if its pole position does not correspond to the starting
angle.
How to activate the manual "current/frequency" test mode:
1. Disable inverter
4Enable
2. Change to the "current/frequency" test mode.
3. Enable the inverter to start the test mode.
4. To stop the test mode again:
Disable inverter.
•
Change back to the CiA402 operating mode.
•
280
"Switched on" device state.
Info
R.m.s. value of a phase current
• Selected in [%] based on the rated motor cur-
rent.
Frequency
Starting angle
Info
Motor current phase U
Motor current phase V
Motor current phase W
operation.
^ 296
40x2825
40x2825
Data type
INTEGER_16
INTEGER_16
INTEGER_16
Data type
INTEGER_32
INTEGER_32
INTEGER_32
=2
= 0