Symptom Possible cause Remedy
Refer-
ence
page
The inverter trips
with an overcurrent
protection during
operation.
The acceleration time is set too
short.
Increase the acceleration time
(3004Hex-08Hex/3005Hex-0BHex/
3005Hex-0DHex/3005Hex-0FHex).
page
6-33
page
6-37
Use the acceleration/deceleration stop
function to change the operation pattern to
stop accelerating temporarily
.
page
6-36
The load is too heavy
. Reduce the load. -
Use the torque boost function to adjust the
torque.
page
6-65
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 V
ector control
without speed sensor” and “15: PM V
ector
control without speed and pole position
sensor” and perform tuning.
page 6-8
page
7-16
1st Overload Protect Function
Selection
(3004Hex-2CHex)/2nd Over-
load Protect Function Selection
(301FHex-2FHex) is set to “0:
Disable.”
Enable 1st Overload Protect Function Se-
lection (3004Hex-2CHex)/2nd Overload
Protect Function Selection
(301FHex-2FHex).
page
8-71
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.
Decrease 1st Overload Protect Level
(3004Hex-2DHex)/2nd Overload Protect
Level (301FHex-30Hex).
page
8-74
9 Troubleshooting
9-33
M1 Series EtherCAT Type User’s Manual (I670)
9-2 Troubleshooting
9
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