Omron M1 Series

Alarm
code
Alarm
sub-
code
Name Description Check point and remedy reference
(0Ln)
Motor overload
1 to 2
(1) The thermal charac-
teristics of the electron-
ics and the motor over-
load characteristics do
not match
Check motor characteristics.
→ Review parameter (F10*, F12*) data.
→ Use an external thermal relay.
(2) Inappropriate elec-
tronics thermal operat-
ing level
Recheck motor allowable continuous current.
→ Reconsider and change parameter
(F1
1*) data.
(3) Short acceleration/
deceleration time
Recalculate acceleration/deceleration torque
and acceleration/deceleration time required
from the moment of inertia of the load and
acceleration/deceleration time.
→ Lengthen the acceleration/deceleration
time (F07, F08, E10 to E15, H56).
(4) High load Measure the output current.
→
Reduce the load (use the Overload ear-
ly warning 2 Level (OL2) (E34), and re-
duce the load before an overload oc-
curs.) (During winter
, the load may in-
crease.)
(5) 1st Manual Torque
Boost Voltage (F09*)
too high
Check F09* data, and readjust so that this
does not stall even if data is lowered.
→ Adjust F09*.
9 Troubleshooting
9-20
M1 Series Standard Type User's Manual (I669)