14. Maintenance and Checkup
14.3 Servo Warning
Upon detecting abnormality corresponding to servo warning, the drive sets off the relevant
warning. In such case, the drive maintains normal operation. Warning is automatically
cleared when the cause is removed. Upon warning, please take appropriate actions. You can
set wheteher each warning is checked through warning mask setting (0x2014).
Warning
bit
Code
0
W01
1
W02
2
W04
3
W08
4
W10
5
W20
6
W40
7
W80
WarningName
Main power fail
Low encoder battery
Software positionlimit
Excessive DB current
Operation overload
Driver/motor combination fail
Low voltage
Emergency signalinput
Warning Status(CODE)
Name
PWR_FAIL
LOW_BATT
SW_POS_LMT
OV_DB_CUR
OV_LOAD
SETUP
UD_VTG
EMG
Description and Cause
Main power fail
Low encoder battery
Software position limit
Excessive DB current
Operation overload
Driver/motor combination fail
Low voltage
Emergency signalinput
Checklist
The main power failed when the action in case of
main power fail is set to warning in the main
power input mode setting (0x2006).
Encoder battery is low, when applying absolute
encoder
When using software position limit function,
position command larger than the software
position value was input.
DB current exceeding the fault level was output
Accumulated operation overload ratio reached
the warning level (0x2010).
Check for equipmentclash or arrest
Check load status, brake action, drive output
miss wiring, encoder miss wiring.
Check motir ID, drive ID, encoder setting
Motor’s current capacity is bigger than the drive’s
current capacity
The main power input voltage is under 190V
when the action in case of main power fail is set
to warning in the main power input mode
setting(0x2006).
Check emergency stop contact signal, external
24V power
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