1 Troubleshooting
1.3 Checking method and
remedy of trouble
B
(12) Alarm
Power Phase Lack
[When R and T of phases R, S, and T are
normal,
whether there is phase S is
checked.]
Item
Cause
Check
Remedy
One of phases R, S, and
Check the voltage between any
Check the cause of the phase
T is lacked when the
two phases of R, S, and T at
lack and take proper
1
power is turned on.
the input power terminals
countermeasures.
X2,
and X3 using a circuit
tester.
One of the fuses
F2,
Check the electric continuity
Replace the fuse being blown
2
and F3 has been blown
of each fuse using the
with a new one.
when the power is turned
tester.
(See Section 2.1.)
on.
(13) Alarm
CPU Error (Division error)
[This alarm occurs when an CPU operation where
a value is divided by 0 is executed or the
result of division is overflowed.)
Item
Cause
Check
Remedy
The parameter relating
Check the parameter by
Correctly set the parameter.
to gear ratio is
Reference 1.2.2 for
correctly set.
that which is set from the
(Note) Compare the parameter
1
amplifier and Reference 1.2.3
in the parameter list on
for that which is set from
the cover of the amplifier
the NC.
with that being set.
(See Appendix 10)
The connector
Check the cable in the same
Securely connect the
2
which is linked with the
manner as the alarm No. 15
tor and the set screws.
NC through the bus is
loose.
The cable
which
Check the cable in the same
Replace the cable with a new
3
is linked with the NC
manner as the alarm No. 15
one.
through the bus is
defective.
The following parameters
Check the parameters by
Correctly set the parameters.
relating to the gain of
referencing Reference 1.2.3.
the speed loop are
(Note) Compare the parameters
4
correct.
in the parameter list on
the amplifier cover with
those being set.
(See Appendix 10.)
When a special motor is
Compare the
Correctly set the parameters
used (when
and 02
the parameter list on the
5
are set),
the motor
amplifier cover with those
constants
to
are
being set.
incorrect.
(See Appendix 10.)
Summary of Contents for FREQROL-SF
Page 100: ... 3 Display lamps See Appendix 8 2 4 Check terminals See Appendix g 3 95 ...
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