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MDA-550/MDA-510
Users Manual
Navigation and User Interface
Push
MOTOR DRIVE
to display the Motor Drive Main Menu. This
ANALYZER
menu is for the selection of measurements at different
locations of the motor drive system. See Figure 2.
MOTOR DRIVE
ANALYZER
Figure 2. Motor Drive Main Menu
From the submenus the specific measurement is selected
with
.
ENTER
10
The main menu items are:
•
Drive Input
Use these functions to check drive input conditions.
Input voltage relates to the quality of the mains power
that feeds the drive. Input current depends on the
loading of the drive and the condition of the drive input
section.
•
Drive DC-Bus
Use these functions to check the DC-bus of the drive.
DC-bus voltage relates to good drive input and load
conditions. DC-bus ripple relates to the drive input
circuit, capacitors, and output loading.
•
Drive Output
Use these functions to check the drive output
conditions. The modulated output voltage varies with
the motor speed and load. The output current depends
on load and correct function of the motor. Unbalance
between the phases can cause or indicate problems.
The stress on the motor insulation can be determined
by measurement of the risetime of a fast modulation
pulse.
•
Motor Input
Use these functions to check the motor input conditions.
The measurements are the same as Drive Output and
help to determine the influence of the cable. Incorrect
wiring between drive and motor can cause contact,
voltage drop, and reflection problems that can cause
performance drop or damage to the motor. The
measurements are stored separately when you select
Save to Report.
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