YASKAWA CIMR-MC5A20P4 Instruction Manual page 195

The settings in the torque detection selection constants (L6-01 and L6-04) determine whether overtor-
D
que conditions will be detected and what kind of processing will be performed if a overtorque condi-
tion is detected.
L6-01/L6-04 Settings
D
Setting
0 Overtorque detection disabled
Detect only during speed agree. Continue
1 operation even after detection. (Minor
fault)
Detect overtorque at any time. Continue
2 operation even after detection. (Minor
fault)
Detect only during speed agree. Stop out-
3
put after detection. (Fault
Detect overtorque at any time. Stop output
4
after detection. (Fault)
When overtorque detection is enabled, be sure to set the overtorque detection level (L6-02 or L6-05)
D
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 is set as a percentage of the motor rated torque.
D
Any of the following functions can be set in a multi-function output (H2-01, H2-02, or H2-03) to indi-
D
cate fact that an overtorque condition has been detected.
S Setting B: Overtorque detection 1 (NO)
S Setting 17: Overtorque detection 1 (NC)
Motor current
(Output torque)
L6-02 or L6-05
Overtorque Detection 1 (N.O.)
or Overtorque Detection 2
(N.O.)
* The overtorque detection is cleared when the current drops about 5% of the
Inverter's rated current (or the motor's rated torque).
Fig
7.33
Hardware Protection Settings: L8-01 to L8-03, L8-05, L8-07
J
Protection Selection for Internal DB Resistor: L8-01
User User
Constant
Number
Protect selection for in-
L8-01
ternal DB resistor
Settings
D
Setting
0 Disabled. (Select 0 when a braking resistor isn't being used or a Braking Resistor Unit is being
used.)
1 Enabled. (Protects the braking resistor from overheating.)
2 3%ED
3
10%ED
Function
)
L6-03
or
L6-06
ON
Timing Chart for Overtorque Detection
Change
during during Setting Setting
Name
Range
Opera-
tion
0 to 3
- 57
7.3 C ommon Functions
Display
Overtorque detection 1 Overtorque output 2
"OL3" blinks "OL4" blinks
"OL3" blinks "OL4" blinks
"OL3" lights "OL4" lights
"OL3" lights "OL4" lights
S Setting 18: Overtorque detection 2 (NO)
S Setting 19: Overtorque detection 2 (NC)
L6-03
or
L6-06
ON
Valid Access Levels
Factory Factory
Unit
Open Loop
Setting
Vector
B
- - 0
Function
7
Flux Vector
B