1 manual test mode "voltage/frequency, Manual test mode "voltage/frequency, Test mode "voltage/frequency – Lenze i700 User Manual
Page 62: 5motor control & motor settings
5
Motor control & motor settings
5.3
Wiring check by means of manual test modes
62
Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
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5.3.1
Manual test mode "voltage/frequency"
Functional description
In this test mode, a rotating field voltage with the set output frequency f
out
is output at the motor
terminals after controller enable.
• If the frequency selection is positive, the motor should rotate clockwise when one is looking at
the A-side of the motor. If this is not the case, there is a simple rotating movement in the motor
phases.
• The level of the output voltage is determined via the following equation:
By means of the manual "Voltage/frequency" test mode, the wiring of the feedback system can also
be checked.
• If the feedback system is set correctly, the following actual speed should be shown:
Equation for calculating the output voltage
Axis A
Axis B
Symbol Description
Dimension unit
V
out
Current output voltage
V
f
out
Output frequency for test mode
Hz
V
rated
V/f rated voltage
V
f
rated
V/f base frequency
Hz
Greyed out = read access only
Equation for calculating the actual speed
Axis A
Axis B
Symbol Description
Dimension unit
n
act
Velocity actual value
rpm
f
out
Output frequency for test mode
Hz
zp
Motor
Motor - number of pole pairs
Greyed out = read access only
U
out
f
out
U
rated
f
rated
---------------
⋅
=
n
act
f
out
zp
motor
-------------------
60
⋅
=