Omron OMNUC FND Series User Manual page 206

Application
Alarm dis- Error content
play
A.L17 Motor overload
[The electrother- [
mal value l l
exceeded 110%.]
A.L18 Short time over-
load
[The current [Th
exceeded the
motor's rated motor's rated
current (120%)
for a sustained
period of time.]
A.L19 Resolver error
[There was an
error in the
resolver feed resolver feed-
back.]
A.L20 Speed over
[The motor [
speed exceeded d
120% of the
maximum maximum
speed.]
A.L21 Deviation counter
over
[The error count- [
er's accumulated '
pulses exceeded
21 21
2 2 .] ]
A.L26 Parameter set-
ting error
4-14
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Condition when
error occurred
Occurred during
operation.
Occurred during
operation.
t
]
Occurred during
operation.
The motor oper-
ated at high speed g
d d upon startup. t t
Occurred during
operation.
Motor did not oper-
ate even though
the START signal g
l t d was turned ON. t d ON
Occurred at high-
speed rotation.
Occurred when
positioning with a g
large amount of l t f
movement or dur-
ing a JOG opera- ing a JOG opera-
tion.
Occurred when
operating at the g
maximum rotation i t ti
speed.
Occurred when
power was turned
ON.
Probable cause
The mechanical system is
locked.
The power lines are wired
incorrectly.
The load is too large.
The gain adjustment is incor-
rect.
The mechanical system is
locked.
The power lines are wired
incorrectly.
The load is too large.
The gain adjustment is incor-
rect.
The resolver cable is discon-
nected.
Malfunctioning was caused by
noise.
There was a resolver feed-
back error.
The encoder is wired incor-
rectly.
The gain adjustment is incor-
rect.
The motor power lines or the
encoder lines are wired incor-
rectly.
The mechanical system is
locked.
The motor power lines or the
encoder lines are wired incor-
rectly.
The gain adjustment is incor-
rect.
Acceleration was too sudden.
The load is too large.
The reference speed is too
high.
The slip compensation is too
large.
No data is set for UP-01 and
UP-02, or else the setting is
incorrect.
Chapter 4
Countermeasures
Correct the places that are
locked.
Correct the wiring.
Lighten the load.
Lengthen the deceleration
time.
Re-adjust the gain.
Correct the places that are
locked.
Correct the wiring.
Lighten the load.
Lengthen the deceleration
time.
Re-adjust the gain.
Connect any disconnected
places.
Correct any faulty contacts.
Wire the resolver cables sep-
arately from the power lines.
Wire the resolver cables sep-
arately from the power lines.
Correct the wiring.
Re-adjust the gain.
Correct the wiring.
Correct the places that are
locked.
Correct the wiring.
Re-adjust the gain.
Lengthen the acceleration
time.
Lighten the load.
Select another motor.
Correct the speed settings.
Correct the slip compensa-
tion.
Correctly set the data for
UP-01 and UP-02. (After set-
ting the data, turn the power
off and back ON.)