range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L6-01 Torq Det 1 Sel 0 to 4 --- 0 Basic or Advanced
L6-02 Torq Det 1 Lvl 0 to 300 % 150 Basic or Advanced
L6-03 Torq Det 1 Time 0.0 to 10.0 s 0.1 Basic or Advanced
L6-04 Torq Det 2 Sel 0 to 4 --- 0 Advanced
L6-05 Torq Det 2 Lvl 0 to 300 % 150 Advanced
L6-06 Torq Det 2 Time 0.0 to 10.0 s 0.1 Advanced
Note These parameters cannot be changed during operation.
• The
overtorque detection function detects an excessive mechanical load from an increase in the out
-
put current (or output torque).
• The
settings in the torque
detection selection parameters (L6-01 and L6-04) determine whether over
-
torque
conditions
will be detected and what kind of processing will be performed if a overtorque condi
-
tion is detected.
L6-01/L6-04 Settings
Setting Function
0 No overtorque detection
1 Detect only during speed agreement. Continue operation even after detection. (Minor fault)
2 Detect overtorque at any time. Continue operation even after detection. (Minor fault)
3 Detect only during speed agreement. Stop output after detection. (Fault)
4 Detect overtorque at any time. Stop output after detection. (Fault)
• When
overtorque detection is enabled, be sure to set
the overtorque detection level (L6-02 or L6-05)
and
the overtorque detection time (L6-02 or L6-05). An overtorque condition
is detected when the cur
-
rent exceeds the overtorque detection level for longer than the overtorque detection time.
• The overtorque detection level settings depend on the control mode:
Open-loop or flux vector control: Set as a percentage of the motor’s rated torque.
Normal V/f or V/f with PG control: Set as a percentage of the Inverter’s rated output current.
• Any
of the following functions can be set in a multi-function output (H2-01, H2-02, or H2-03) to indicate
the fact that an overtorque condition has been detected.
Setting B: Overtorque detection 1 (N.O.)
Setting 17: Overtorque detection 1 (N.C.)
Setting 18: Overtorque detection 2 (N.O.)
Setting 19: Overtorque detection 2 (N.C.)
Advanced Operation Chapter
6
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