SD710 Series Servo Drive User Manal Chapter 10 Troubleshooting
19
Error code
ER. 42A
KTY type temperature sensor overtemperature
Reason
The KTY type temperature sensor detects a temperature value greater than the set
overtemperature threshold (Pn055).
Treatment.
Reasons
Confirmation method
Handling measures
1. The overtemperature
threshold is set too small.
◆
Check that the value set for function code
Pn055 is not too small.
Reasonable
setting
of
overtemperature thresholds.
2. Abnormal motor cooling
fan.
◆
Check that the cooling fan of the motor is
running properly.
◆
Check the motor cooling duct for
obstruction.
(b) If the motor cooling fan is
abnormal,
exclude
the
corresponding abnormality.
Clear the air duct obstruction.
3. Motor load working
conditions exceed the
selection.
◆
Check if the motor has been operating
above the rated torque operating conditions
for a long time.
Reasonable choice type.
4. Servo failure.
◆
The fault is still reported when the main
circuit power is turned back on after repeated
power down.
Replace the servo.
Error code
ER. 450
Digital input terminal X function assignment repeat
Reason
The same function is assigned to different digital inputs x or the assigned function is abnormal
Treatment.
Reasons
Confirmation method
Handling measures
1. The same function is
assigned to different
input terminals x.
◆
Check that function codes Pn601.YX -
Pn609.YX are set to the same function
number.
Readjust input terminal X,
which has been assigned the
same function number, to
assign a different function
number, then reset the fault to
take effect.
2. The function number
setting of input terminal X
is abnormal.
◆
Check if the set function number exists.
Correct
the
non-existent
function number that was set.
Error code
ER. 451
Digital output terminal Y function assignment repeat
Reason
The same function is assigned to a different digital output terminal Y or the assigned function
number is abnormal
Treatment.
Reasons
Confirmation method
Handling measures
1. The same function is
assigned to different
output terminals y.
◆
Check if the function code Pn611.YX -
Pn614.YX is set to the same function number.
Readjust output terminal Y,
which has been assigned the
same function number, to assign
a different function number, and
then reset the fault to take effect.
2. Function number Set up
exception for output
terminal Y.
◆
Check if the set function number exists.
Correct the non-existent function
number that was set.
