(3) The load is large. Measure the current flowing in
the motor, take a current trend,
and determine if it is greater than
the calculated load value in the
system design.
→ If overloaded, reduce the load
or increase the capacity of the in-
verter
.
Check the current trend to see if
the current changes abruptly.
→ If the current changes abrupt-
ly, reduce the load fluctuation or
increase the capacity of the in-
verter.
→ Set Instantaneous
Overcurrent Limiting Function
Selection to Enable (3008-0D
hex) = 1.
Select a motor and an inverter
according to the load.
(4) The torque boost is large
(when 1st Torque Boost
Selection
(301F-0D hex) or 2nd
Torque Boost Selection
(301F-0E hex) = 0).
Check if the current decreases
and the inverter does not stall
when the value of Torque Boost
Voltage (3004-0A hex, 3009-06
hex) is lowered.
→ If it is determined that the in-
verter does not stall, lower the
value of Torque Boost Voltage
(3004-0A hex, 3009-06 hex).
Set the value of Torque Boost
Voltage (3004-0A hex, 3009-06
hex) appropriately.
(5) The acceleration/deceleration
time is short.
Calculate the torque required for
acceleration/deceleration based
on the load’s moment of inertia
and acceleration/deceleration
time, and determine if it is appro-
priate.
→ Increase the values of
Acceleration T
ime (3004-08
hex, 3005-0B hex, 3005-0D hex,
3005-0F hex, and 3008-37 hex)
and Deceleration Time
(3004-09 hex, 3005-0C hex,
3005-0E hex, 3005-10 hex, and
3008-38 hex).
→ Enable the functions of
Torque Limit 1 (Four-quadrant
Mode Forward Power Running)
(3004-29 hex), Torque Limit 2
(Four-quadrant Mode Reverse
Regeneration) (3004-2A hex),
Torque Limit 3 (Four-quadrant
Mode Reverse Power Running)
(3005-11 hex), and Torque Limit
4 (Four-quadrant Mode
Forward Regeneration)
(3005-12 hex).
→ Increase the capacity of the
inverter.
Calculate the torque required for
acceleration/deceleration based
on the load’s moment of inertia
and acceleration/deceleration
time, and set appropriate param-
eters.
Appendices
A-221
M1 Series EtherCAT Type User’s Manual (I670)
A-5 Sysmac Error Status Codes
A
A-5-2 Error Descriptions
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