L6: Torque Detection; L8: Drive Protection - YASKAWA Z1000 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>
Torque Detection Level 1
L6-02
Torq Det 1 Lvl
(4A2)
Torque Detection Time 1
L6-03
Torq Det 1 Time
(4A3)
Motor Underload Protection
Selection
L6-13
(62E) Underload Select
Motor Underload Protection
Level at Minimum
L6-14
Frequency
(62F)
Underload Level
<1> Available in bypass controller software versions VST800298 and later.
u

L8: Drive Protection

No.
(Addr. Name
Hex)
L8-02 Overheat Alarm Level
OH Pre-Alarm Lvl
(4AE)
Input Phase Loss Protection
L8-05
Selection
(4B1)
Inp Ph Loss Det
Input Phase Detection Level
L8-06
(4B2) Inp Ph Loss Lvl
Output Phase Loss
L8-07
Protection Selection
(4B3)
Outp Ph Loss Det
Output Ground Fault
L8-09
Detection Selection
(4B5)
Grnd Flt Det Sel
Carrier Frequency
L8-38
Reduction
(4EF)
Fc Reduct dur OL
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
330
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
0: Disabled
1: Enabled
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
0: Disabled
1: Enabled (triggered by a single phase loss)
1: 1PH Loss Det
2: Enabled (triggered when two phases are lost)
2: 2/3PH Loss Det
0: Disabled
0: Disabled
1: Enabled
1: Enabled
0: Disabled
0: Disabled
1: Enabled below 6 Hz
1: Active below 6Hz
2: Enabled for the entire speed range
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
Description
0: Base Freq Enable
1: Max Freq Enable
Description
2: Active @ any Spd
Values Page
Default: 0
177
Range: 0 to 8
Default: 15%
Min.: 0 178
Max.: 300
Default: 10.0 s
Min.: 0.0 178
Max.: 10.0
Default: 0
178
Range: 0, 1
Default: 15%
Min.: 0 178
Max.: 300
Values Page
<1>
179
Min.: 50 °C
Max.: 150 °C
Default: 1
179
Range: 0, 1
<1>
Default:
179
Min.: 0.0%
Max.: 50.0%
Default: 1
179
Range: 0 to 2
<1>
Default:
180
Range: 0, 1
<1>
Default:
180
Range: 0 to 2