L6: torque detection, L8: drive protection – Yaskawa AC Drive P1000 Bypass Technical Manual User Manual
Page 252
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L6: Torque Detection
No.
(Addr.
Hex)
Name
Description
Values
Page
L6-02
(4A2)
Torque Detection Level 1
Sets the overtorque and undertorque detection level.
Default: 15%
Min.: 0
Max.: 300
L6-03
(4A3)
Torque Detection Time 1
Sets the time an overtorque or undertorque condition must exist to trigger
torque detection 1.
Default: 10.0 s
Min.: 0.0
Max.: 10.0
L6-13
(62E)
Motor Underload Protection
Selection
Sets the motor underload protection (ULo) based on motor load.
0: Overtorque/undertorque detection enabled
1: Base frequency motor load enabled
Default: 0
Range: 0, 1
L6-14
(62F)
Motor Underload Protection
Level at Minimum
Frequency
Sets the UL6 detection level at minimum frequency by percentage of drive
rated current.
Default: 15%
Min.: 0
Max.: 300
u
L8: Drive Protection
No.
(Addr.
Hex)
Name
Description
Values
Page
L8-02
(4AE)
Overheat Alarm Level
An overheat alarm occurs when heatsink temperature exceeds the L8-02 level. Default:
<1>
Min.: 50 °C
Max.: 150 °C
L8-05
(4B1)
Input Phase Loss Protection
Selection
Selects the detection of input current phase loss, power supply voltage
imbalance, or main circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
L8-06
(4B2)
Input Phase Detection Level
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
Default:
<1>
Min.: 0.0%
Max.: 50.0%
L8-07
(4B3)
Output Phase Loss
Protection Selection
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
Default: 1
Range: 0 to 2
L8-09
(4B5)
Output Ground Fault
Detection Selection
0: Disabled
1: Enabled
Default:
<1>
Range: 0, 1
L8-38
(4EF)
Carrier Frequency
Reduction
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default:
<1>
Range: 0 to 2
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
B.9 L: Protection Function
252
YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual