r
Cause
Trouble with motor
built- in encoder
Trouble with posi-
tion control loop
function
Checkuo
between motor and CON2 is
disconnected.
Observe the signal from
CH31 and 32 (common CH) of
SFJ-CAl,
using an oscillo-
scope.
When motor runs at
1500rpm,
the signal should be sinu-
soidal-wave signal at the
following frequency:
1500
-
x 128 =
3.2kHz
60
This alarm occurs due to
Set parameter
out of control in sync. TAP,
(ORS2]
(orienta-
sync.
control,
or other po-
tion of position
sition control loop opera- detector) proper-
tion.
ly*
Gear ratio parameter
GRAl
-
GRA4,
GRBl
-
GRB4, is not
set properly (parameter set-
ting is smaller than 100).
Set gear ratio
parameter proper-
ly (refer to
"Parameter Table").
Remedy
1
Replace the motor
/
built-in encoder.
j
(9)
OVER VOLRRAGE
This alarm
appears.if
voltage across
recitifier
capacitor
is excessive (due to excessively large regenerative energy).
Cause
Wrong wiring
I
I
Checkup Remedy
iDischarge
resistor unit is
Connect discharge
inot
connected to FR-SFJ.
resistor unit.
I
.-
Motor constant
paraiparameter
0
MSL
(#2)
setting
Set
parameter=/
1
meter set improperly'does not meet motor in use.
(#2)
properly.
Trouble with
dis-
Resistance measured across
Replace the
dis-
charge.resistor
1
Rl
and R2 of discharge
resis-
charge resistor
unit
tor unit is improper, or zero unit.
-
99
-
To Next Page
Loading...
