Omron M1 Series User Manual page 529

Symptom
The inverter trips
with an overcurrent
protection during
operation.
M1 Series EtherCAT Type User's Manual (I670)
Possible cause
The acceleration time is set too
short.
The load is too heavy.
1st Overload Protect Function
Selection
(3004Hex-2CHex)/2nd Over-
load Protect Function Selection
(301FHex-2FHex) is set to "0:
Disable."
If an overcurrent trip occurs during operation although the overload limit func-
tion is enabled:
1st Overload Protect Level
(3004Hex-2DHex)/2nd Over-
load Protect Level
(301FHex-30Hex) is too high.
Remedy
Increase the acceleration time
(3004Hex-08Hex/3005Hex-0BHex/
3005Hex-0DHex/3005Hex-0FHex).
Use the acceleration/deceleration stop
function to change the operation pattern to
stop accelerating temporarily.
Reduce the load.
Use the torque boost function to adjust the
torque.
With 1st Drive Control Selection
(3004Hex-2BHex)/2nd Drive Control Selec-
tion (3009Hex-0FHex) set to "0: IM V/f con-
trol," set "Free V/f voltage
(301FHex-44Hex/301FHex-46Hex/
301FHex-48Hex/301FHex-4AHex/
301FHex-4CHex/301FHex-4EHex/
301FHex-50Hex)" or "5: IM Vector control
without speed sensor" and "15: PM Vector
control without speed and pole position
sensor" and perform tuning.
Enable 1st Overload Protect Function Se-
lection (3004Hex-2CHex)/2nd Overload
Protect Function Selection
(301FHex-2FHex).
Decrease 1st Overload Protect Level
(3004Hex-2DHex)/2nd Overload Protect
Level (301FHex-30Hex).
9 Troubleshooting
Refer-
ence
page
page
6-33
page
6-37
page
6-36
-
page
6-65
page 6-8
page
7-16
page
8-71
page
8-74
9-33
9