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1 Troubleshooting
1.3
Checking method and
remedy of trouble
classification
B
Alarm
Abbr.
Name
Description
Motion
No.
(Note)
The input power voltage drops to a value less
10
UNDER VOLTAGE
than the specification assured value or an
instantaneous power failure occurs for 15 ms or
A
more.
The internal memory for controlling the
12
ME1
MEMORY ERROR 1
ler is not correclty read and written.
(It is checked when the power of the controller
A
is turned on.)
13
EXTERNAL CLOCK
The system clock which is sent from the NC is
ERROR
defective.
A
The 2-port memory for communication which is
15
ME2
MEMORY ERROR 2
used for linkage with the M300 series CNC through
A
the bus does not correctly work.
17
BE
ERROR
Any part on the controlling printed circuit
board does not correctly work.
A
20
IC MAC007 ERROR
The part ICMACOO7 on the controlling printed cir-
board does not correctly work.
A
21
NO SIGNAL 2
A signal is not input from the orientation
(
SPINDL
E
coder or the signal is not in the
correct level.
A
22
NSS
IC MAC012 ERROR
The part IC MAC012 on the controlling printed
circuit board does not correctly works.
A
SPEED CONTROL ERROR
The difference between the referenced speed and
23
OSE
EXCESS
motor speed is 50 rpm or more and it takes for
A
12
or more.
24
BRT
current which exceeds the specific value flows
in the main circuit.
A
25
CONVERTER
An overcurrent which exceeds the
value
CURRENT
flows in the converter.
A
26
PL
POWER PHASE LACK
One or more of 3 phases is missed in 3-phase
A
power.
27
CPUE
CPU ERROR
A division error occurs in CPU operation
(DIVISION ERROR)
cause of incorrect parameters being set.
A
31
OVERSPEED
The motor speed exceeds 115% of the maximum speed
A
32
oc
INVERTER OVERCURRENT
An overcurrent which exceeds the specific value
flows in the controller.
A
33
The voltage of the main circuit condenser exceeds
ov
OVER VOLTAGE
the specific value because of regenerative energy
A
in motor deceleration state.
Continued on the next page.
21
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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