13.11.2 Manual "tension/frequency" test mode
Funconal
descripon
In case of devices that correspond to the "dual use regulaon" (EC 428/2009),
v
alues 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 informaon can be found in the secon "Frequency and speed limita-
ons". ^ 276
Aer the controller is enabled in this test mode, a rotary eld voltage is output at the motor
terminals with the set output frequency f
out
.
•
If the select
ed frequency is
posive, 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 equaon
Equaon for calculang the output voltage
rated
out out
rated
U
U f
f
= ×
Parameter Symbol Descripon Dimension unit
V
out
Current output voltage V
0x2835:002 f
out
Output frequency for test mode
Please observe the notes in the
secon "Frequency and speed limi-
taons". ^ 276
Hz
0x2B01:001 V
rated
Base voltage V
0x2B01:002 f
rated
Base frequency Hz
The manual "voltage / frequency" test mode also serves to check the wiring of the feedback
s
ystem.
•
If the f
eedback system of a synchronous motor is set correctly, an actual speed should be
displayed that can be calculated with the following equaon (if the feedback system of an
as
ynchronous motor is set correctly, the actual speed is a bit lower due to the slip):
Equaon for calculang the actual speed
Parameter Symbol Descripon Dimension unit
0x606C n
act
Velocity actual value
rpm
0x2835:002 f
out
Output frequency for test mode Hz
0x2C01:001 zp
Mot
or
Number of motor pole pairs
Condions for the execuon
•
The mot
or 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
funcon of the set output frequency.
How to acvate the manual "voltage/frequency" test mode:
1.
Disable the in
verter 4Enable operaon. ^ 296
2.
Chang
e to the "voltage/frequency" test mode. 40x2825 = 1
3.
Enable the inverter to start the test mode.
4.
To stop the test mode again:
•
Disable inverter.
•
Change back to the "CiA402 operang mode". 40x2825 = 0
Conguring the motor control
Tesng the motor control
Manual "t
ension/frequency" test mode
279