Q170226E01.pdf - 第349页
RH5 8.4 AC Servomotor Drivers SERVICE MANUAL 8.4−12 DA3SEC−85−480−A0 Digital Operator and 7−segment LED Indication for Troubleshooting 7−seg ment LED indication Digital Operator Indication (T raceback Monitor) Lighting C…
8.4 AC Servomotor Drivers
SERVICE MANUAL
RH5
8.4−11
DA3SEC−85−480−A0
Digital Operator and 7−segment LED Indication for Troubleshooting
Digital Operator and 7−segment LED Indication for Troubleshooting
7−seg ment
LED
indication
Digital Operator
Indication
(T raceback
Monitor)
Lighting Condition Probable Causes Countermeasures
O
v
e
r
cu
rr
e
n
t
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
Overcurrent
Lights up when power
to the main circuit is
supplied and servo
power is turned ON.
No fuse blown.
x Defective current
feedback circuit
x Defective main
circuit transistor
module
Replace the
SERVOPACK.
Lights up during
operation.
Lights up even after
turning power OFF
and then turning back
Stopped fan Check the fan rotation.
(DR20, 30, 40)
and
then
turning
back
ON.
Operation can be
resumed after a
certain period of time
by pressing <RESET>
key.
Ambient temperature
near the SERVOPACK
is over 50 qC.
Adjust the ambient
temperature of the
SERVOPACK for 50qC
or lower. (Heatsink
overheat)
MMCB
trip
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
(MCCB must be ON.)
Replace the
SERVOPACK.
MMCB
t
r
i
p
Lights up when power
to the main circuit is
supplied.
Defective main circuit
thyristor/ diode hybrid
module.
Replace the
SERVOPACK. (Do not
turn the power ON
again.)
MCCB is ON. Replace the
SERVOPACK.
MCCB is OFF. Turn ON the MCCB.
Regenerative
error
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
Regenerative
error
Lights up in 0.5 to 1
second after power to
th
i
iit
i
Defective regenerative
transistor
Replace the
SERVOPACK.
p
the main circuit is
turned ON.
x Defective
regenerative resistor
x Regenerative
resistor has not
been connected.
Check or replace the
regenerative resistor.
(Replace the
SERVOPACK.)
RH5
8.4 AC Servomotor Drivers
SERVICE MANUAL
8.4−12
DA3SEC−85−480−A0
Digital Operator and 7−segment LED Indication for Troubleshooting
7−seg ment
LED
indication
Digital Operator
Indication
(T raceback
Monitor)
Lighting Condition Probable Causes Countermeasures
Overvoltage
Lights up when power
to the main circuit is
supplied.
Load CD
2
is too large.
x Check the inertia of
the machine with the
value converted to
the motor shaft.
g
Defective regenerative
circuit
Replace the
SERVOPACK.
Overspeed
When the reference is
input, the motor runs
fast and LED comes
ON.
x Motor connection
error
x Optical encoder
connection error
x Correct the motor
connection.
x Check pulses in
phases A, B and C on
2CN and correct
wiring.
Undervoltage
Lights up when power
to the main circuit is
supplied.
Defective main circuit
diode hybrid module
Replace the
SERVOPACK.
=NOTE= 1 Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
Overload
The motor runs but
prescribed torque
cannot be obtained.
Then LED comes ON.
Turning OFF power to
the control circuit and
turning it back ON
resumes operation but
the same error
persists.
Motor circuit
connection error
(ex. U o V
V o W
W o U)
Or single−phase
connection
Correct the wiring.
(High load)
Lights up during
operation.
Turning OFF power to
the control circuit and
turning it back ON
resumes operation.
Operation is continued
for several seconds to
several tens of
seconds at a torque
largely exceeding the
rating. (Instantaneous
overload)
Check for overload
and adjust as
necessary.
(Low load)
Lights up during
operation.
Turning OFF power to
the control circuit and
turning it back ON
resumes operation.
Operation is continued
for several tens of
seconds to several
hundreds of seconds
at a torque exceeding
the rating. (Continuous
overload)
Check for overload
and adjust as
necessary.
8.4 AC Servomotor Drivers
SERVICE MANUAL
RH5
8.4−13
DA3SEC−85−480−A0
Digital Operator and 7−segment LED Indication for Troubleshooting
7−seg ment
LED
indication
Digital Operator
Indication
(T raceback
Monitor)
Lighting Condition Probable Causes Countermeasures
=NOTE= 1
AD error
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
Lights up during
operation.
Erroneous operation
with the reference
input reader
Press <RESET> key
and resume operation.
Failure of the
reference input reader
Replace the
SERVOPACK.
=NOTE= 1
Overrun
prevention
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
The motor starts
momentarily
then
LED
Motor connection error Correct the wiring.
Overrun
momen
t
ar
il
y
th
en
LED
comes ON.
Optical encoder
connection error
Correct wiring of the
optical encoder.
Wire break with
phase PA, PB
The motor starts
momentarily then LED
comes ON.
Wire break with phase
PA, PB of the optical
encoder
Correct signal cables
of the optical encoder.
Wire break with
phase PC
The motor starts
momentarily then LED
comes ON.
Wire break with phase
PC of the optical
encoder
Correct wiring of the
optical encoder.
CPU
fault
Lights up when power
to the control circuit is
supplied.
Defective control
circuit board (1PWB)
Replace the
SERVOPACK.
CPU fault
Lights up during
operation.
Malfunction of internal
circuit
Press <RESET> key
and resume operation.
p
Failure of internal
circuit
Replace the
SERVOPACK.
=NOTE=
1. j means an unspecified number.