14. Maintenance and Checkup
14. Maintenance and Checkup
14.1 Abnormality Diagnosis and Actions
Abnormality during operation sets off alarim or warning. In such cases, please check the
corresponding code and take appropriate actions. When the abnormality is not corrected
after such actions, please contact us at our service department.
14.2 Servo Alarm
Upon detecting abnormality, the drive sets off the servo alarm, and transitions to servo off
status ad stops. In such case, the stop method follows the set value of the emergency stop
setting (0x2013).
Alarm Code
Name
Causes
Motor cable error
Checklist
Troble shooting
Wiring is incorrect and check short Replace motor cable
IPM fault
(Overcurrent(H/W))
Over current
(Overcurrent(S/W))
Current limit exceeded
(Overcurrent(H/W))
Encoder cable error
Wiring is incorrect and check short Replace encoder cable
Parameter cable error
Check motor phase resistor
Drive error
Error by noize
Motor ID [0x2000], encoder
type[0x2001], encoder form[0x2002]
setting vaule should be same with
applied to motor label.
Check if U/V/W phase
currentffset(0x2015~0x2017) is 5%
or above of the rated current,
Replace drive
Determine whether there is a conflict
or binding in the equipment.
Modifty motor label and
parameter concordantly
Replace motor
Check method to improve noise of
wiring, install.
Please check condition of wiring
for FG. Match wire size of FG
with wire size of drive main
circuit.
Regeneration overload
IPM temperature
Current offset
surroundings temperature
Continuous Overload alram
Motor cable open
Drive setting direction
Drive error
Motor U/V/W phase current
offset oversetting
Check wherther surrounding
temperature is over 50 [℃]
Accumulated operate overload
percentage [0x2603] Checking the
load percentage is under 100%
Check accumulated regenerative
overload[0x2606]
Check drive setting status
Check whether the U/V/W phase
current offset [0x2015~0x2017] are
5% of the rated current or highter.
Lower surrounding temperature
Change drive and motor
capacitiy,
Adjust regenerarion resistor
setting[0x2009]
Use external regenerarion
resistor.
Refer “2. Wiring and Joint
Rerun adjusting phase current
offset
14-1
