![CARLO GAVAZZI RVDFA110020 Advanced User'S Manual Download Page 44](http://html.mh-extra.com/html/carlo-gavazzi/rvdfa110020/rvdfa110020_advanced-users-manual_2558649044.webp)
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 23/03/2011
43
6.4 Motor inoperative
RVDF Advanced User Manual
I
s
Power LED off ?
I
s
the circuit
brea
k
er (MCCB)
s
witched ON?
Wiring
s
hort-circuit
Can not
I
s
the operation
s
witch on the RUN
po
s
ition?
Motor over-load
Defective motor
Poor wiring
RVDF malfunction
RVDF malfunction
YE
S
Can you
s
witch ON the
MCCB?
• Power
s
ource
abnormality
• Poor wiring
Place the operation
s
witch to RUN
po
s
ition.
I
s
the
T1-T2,T2-T3,T3-T1
output voltage in balance
condition?
ABNORMAL
NO
YE
S
YE
S
(When the motor i
s
not connected, and the voltoge difference
s
between
wire
s
are /- 3
%
can be treated a
s
in balance condition.)
Normal
(/- 10
%
of nominal value)
NO
NO
I
s
the
voltage between
L1-L2 power input terminal
s
normal?
NO
I
s
there
any output voltage on
motor T1-T2-T3?
RVDF malfunction
NO