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

13.11.2

Manual "tension/frequency" test mode

Functional description
In case of devices that correspond to the "dual use regulation" (EC 428/2009),
values higher than + 599 Hz up to lower than - 599 Hz do not increase the out-
put frequency. Please observe the deadband occurring in this case.
Further information can be found in the section
tions".
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After the controller is enabled in this test mode, a rotary field voltage is output at the motor
terminals with the set output frequency f
If the selected frequency is positive, the motor should rotate clockwise when looking at
•
the A side of the motor. If this is not the case, the motor phases are connected incorrectly.
The output voltage level is determined by the following equation
•
Equation for calculating the output voltage
Parameter
0x2835:002
0x2B01:001
0x2B01:002
The manual "voltage / frequency" test mode also serves to check the wiring of the feedback
system.
If the feedback system of a synchronous motor is set correctly, an actual speed should be
•
displayed that can be calculated with the following equation (if the feedback system of an
asynchronous motor is set correctly, the actual speed is a bit lower due to the slip):
Equation for calculating the actual speed
Parameter
0x606C
0x2835:002
0x2C01:001
Conditions for the execution
The motor must rotate freely.
•
The servo inverter is error-free and in the "switched-on" device state.
•
Response of the motor during performance
The motor moves as a function of the set output frequency.
How to activate the manual "voltage/frequency" test mode:
1. Disable the inverter
4Enable
2. Change to the "voltage/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".
•
.
out
=
U
out
Symbol
V
out
f
out
V
rated
f
rated
=
n
act
zp
Symbol
n
act
f
out
zp
Motor
operation.
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40x2825
40x2825
Configuring the motor control
Manual "tension/frequency" test mode
"Frequency and speed limita-
U
rated
×
f
out
f
rated
Description
Current output voltage
Output frequency for test mode
Please observe the notes in the
section "Frequency and speed limi-
tations".
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Base voltage
Base frequency
f
out
×
60
motor
Description
Velocity actual value
Output frequency for test mode
Number of motor pole pairs
= 1
= 0
Testing the motor control
Dimension unit
V
Hz
V
Hz
Dimension unit
rpm
Hz
279