L6: Torque Detection; L8: Drive Protection - YASKAWA P1000 Technical Manual

B.9 L: Protection Function
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L6: Torque Detection

No.
(Addr. Name
Hex)
L6-01
Torque Detection Selection
(4A1)
1
<1>
L6-02 Torque Detection Level 1
(4A2)
L6-03 Torque Detection Time 1
(4A3)
Motor Underload Protection
L6-13
Selection
(62E)
Motor Underload Protection
L6-14 Level at Minimum
(62F) Frequency
<1> Available in bypass controller software versions VST800298 and later.
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L8: Drive Protection

No.
(Addr. Name
Hex)
L8-02
Overheat Alarm Level
(4AE)
L8-05 Input Phase Loss Protection
(4B1) Selection
L8-06
Input Phase Detection Level
(4B2)
L8-07 Output Phase Loss
(4B3) Protection Selection
L8-09 Output Ground Fault
(4B5) Detection Selection
L8-38 Carrier Frequency
(4EF) Reduction
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
268
0: Disabled
1: oL3 detection only active during speed agree, operation continues after
detection
2: oL3 detection always active during run, operation continues after detection
3: oL3 detection only active during speed agree, output shuts down on an oL3
fault
4: oL3 detection always active during run, output shuts down on an oL3 fault
5: UL3 detection only active during speed agree, operation continues after
detection
6: UL3 detection always active during run, operation continues after detection
7: UL3 detection only active during speed agree, output shuts down on an oL3
fault
8: UL3 detection always active during run, output shuts down on an oL3 fault
Sets the overtorque and undertorque detection level.
Sets the time an overtorque or undertorque condition must exist to trigger
torque detection 1.
Sets the motor underload protection (ULo) based on motor load.
0: Overtorque/undertorque detection enabled
1: Base frequency motor load enabled
Sets the UL6 detection level at minimum frequency by percentage of drive
rated current.
An overheat alarm occurs when heatsink temperature exceeds the L8-02 level. Default:
Selects the detection of input current phase loss, power supply voltage
imbalance, or main circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
When ripple is observed in the DC bus, expansion of the input bias is
calculated. This value becomes the input phase if the difference between the
maximum and minimum values of the ripple is greater than the value set to
L8-06.
Detection Level = 100% = Voltage class x √2
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
0: Disabled
1: Enabled
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
YASKAWA SIEP YAIP1B 01B YASKAWA AC Drive – P1000 Bypass Technical Manual
Description
Description
Values Page
Default: 0
143
Range: 0 to 8
Default: 15%
Min.: 0 144
Max.: 300
Default: 10.0 s
Min.: 0.0 144
Max.: 10.0
Default: 0
145
Range: 0, 1
Default: 15%
Min.: 0 145
Max.: 300
Values Page
<1>
145
Min.: 50 °C
Max.: 150 °C
Default: 1
145
Range: 0, 1
<1>
Default:
145
Min.: 0.0%
Max.: 50.0%
Default: 1
146
Range: 0 to 2
<1>
Default:
146
Range: 0, 1
<1>
Default:
147
Range: 0 to 2