YASKAWA GA800 Series, Technical Reference

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Parameter
Details
12
12.9 L: Protection Functions
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 931
0001 : Enabled (—/–/—/GF)
0010 : Enabled (—/–/oH1/–)
0011 : Enabled (—/–/oH1/GF)
0100 : Enabled (—/ov/—/–)
0101 : Enabled (—/ov/—/GF)
0110 : Enabled (—/ov/oH1/–)
0111 : Enabled (—/ov/oH1/GF)
1000 : Enabled (Uv1/–/—/–)
1001 : Enabled (Uv1/–/—/GF)
1010 : Enabled (Uv1/–/oH1/–)
1011 : Enabled (Uv1/–/oH1/GF)
1100 : Enabled (Uv1/ov/—/–)
1101 : Enabled (Uv1/ov/—/GF)
1110 : Enabled (Uv1/ov/oH1/–)
1111 : Enabled (Uv1/ov/oH1/GF)
Figure 12.138 Setting Digits and Fault Code
◆
L6: Torque Detection
The overtorque/undertorque detection function prevents damage to machinery and loads.
Overtorque is the when there is too much load on the machine. If the motor current or output torque is at the
overtorque detection level for the overtorque detection time, the drive will output an alarm and turn off the output.
Undertorque is the when a load suddenly decreases. When the motor current or output torque is at the undertorque
detection level for the undertorque detection time, the drive will outupt an alarm and turn off the output.
You can use the undertorque detection function to detect these conditions, for example:
•
Machine belt cuts
•
Unusual operation of the electromagnetic contactor on the drive output side
•
Clogged output side air filters in fans and blowers
•
Damage to blade tips and broken string
Note:
If there is oC [Overcurrent] or oL1 [Motor Overload] , the drive can stop during overtorque conditions. Use torque detection to identify
overload conditions before the drive detects oC or oL1 and stops. Use this function to detect issues that occur in the application.
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Parameter Setting
You can individually set the two overtorque/undertorque detection functions with the drive. Use the information in
Table 12.70 to set the parameters.
Table 12.70 Overtorque/Undertorque Detection Parameters
Configuration Parameter Overtorque/Undertorque Detection 1 Overtorque/Undertorque Detection 2
MFDO Function Select
•
Terminals M1-M2
•
Terminals M3-M4
•
Terminals M5-M6
H2-01, H2-02, and H2-03 = B
N.O.: Activated when detected
H2-01, H2-02, and H2-03 = 18
N.O.: Activated when detected
H2-01, H2-02, and H2-03 = 17
N.C.: Disactivated when detected
H2-01, H2-02, and H2-03 = 19
N.C.: Disactivated when detected
Detection conditions and selection of operation after
detection L6-01 L6-04
Detection Level L6-02 L6-05
Analog Input Terminal
*1
H3-xx = 7
-