L6: torque detection, L8: drive protection, B.9 l: protection function – Yaskawa AC Drive Z1000 Bypass Technical Manual User Manual
Page 326
u
L6: Torque Detection
No.
(Addr.
Hex)
Name
Description
Values
Page
L6-01
(4A1)
<1>
Torque Detection Selection
1
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
Default: 0
Range: 0 to 8
L6-02
(4A2)
Torque Detection Level 1
Torq Det 1 Lvl
Sets the overtorque and undertorque detection level.
Default: 15%
Min.: 0
Max.: 300
L6-03
(4A3)
Torque Detection Time 1
Torq Det 1 Time
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
Underload Select
Sets the motor underload protection (ULo) based on motor load.
0: Overtorque/undertorque detection enabled
0: Base Freq Enable
1: Base frequency motor load enabled
1: Max Freq Enable
Default: 0
Range: 0, 1
L6-14
(62F)
Motor Underload Protection
Level at Minimum
Frequency
Underload Level
Sets the UL6 detection level at minimum frequency by percentage of drive
rated current.
Default: 15%
Min.: 0
Max.: 300
<1> Available in bypass controller software versions VST800298 and later.
u
L8: Drive Protection
No.
(Addr.
Hex)
Name
Description
Values
Page
L8-02
(4AE)
Overheat Alarm Level
OH Pre-Alarm Lvl
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
Inp Ph Loss Det
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
Default: 1
Range: 0, 1
L8-06
(4B2)
Input Phase Detection Level
Inp Ph Loss Lvl
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
Outp Ph Loss Det
0: Disabled
0: Disabled
1: Enabled
1: 1PH Loss Det
(triggered by a single phase loss)
2: Enabled
2: 2/3PH Loss Det
(triggered when two phases are lost)
Default: 1
Range: 0 to 2
L8-09
(4B5)
Output Ground Fault
Detection Selection
Grnd Flt Det Sel
0: Disabled
0: Disabled
1: Enabled
1: Enabled
Default:
<1>
Range: 0, 1
L8-38
(4EF)
Carrier Frequency
Reduction
Fc Reduct dur OL
0: Disabled
0: Disabled
1: Enabled below 6 Hz
1: Active below 6Hz
2: Enabled for the entire speed range
2: Active @ any Spd
Default:
<1>
Range: 0 to 2
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
B.9 L: Protection Function
326
YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual