YASKAWA Z1000U Technical Manual page 303

No.
(Addr. Name
Hex)
Motor Underload
L6-14 Protection Level at
(062F) Minimum Frequency
u
L8: Drive Protection
No.
(Addr. Name
Hex)
L8-02
Overheat Alarm Level
(04AE)
L8-03 Overheat Pre-Alarm
(04AF) Operation Selection
L8-05 Input Phase Loss
(04B1) Protection Selection
L8-06 Input Phase Detection
(04B2) Level
L8-07 Output Phase Loss
(04B3) Protection Selection
L8-09 Output Ground Fault
(04B5) Detection Selection
L8-38 Carrier Frequency
(04EF) Reduction
Carrier Frequency
L8-40
Reduction Off Delay
(04F1)
Time
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
LCD Display
Sets the UL6 detection level at minimum frequency by
percentage of drive rated current.
Underload Level
LCD Display
An overheat alarm occurs when heatsink temperature exceeds
the L8-02 level.
OH Pre-Alarm Lvl
OH Pre-Alarm Sel 0: Ramp to stop. A fault is triggered.
0: Ramp to stop 1: Coast to stop. A fault is triggered.
1: Coast to stop 2: Fast Stop. Decelerate to stop using the deceleration time in
2: Fast-Stop C1-09. A fault is triggered.
3: Alarm only 3: Continue operation. An alarm is triggered.
4: Run@L8-19 Rate 4: Continue operation at reduced speed as set in L8-19.
Inp Ph Loss Det Selects the detection of input current phase loss, power supply
0: Disabled voltage imbalance, or main circuit electrolytic capacitor
1: Enabled 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
Inp Ph Loss Lvl
ripple is greater than the value set to L8-06.
Detection Level = 100% = Voltage class x
Outp Ph Loss Det 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
Grnd Flt Det Sel 0: Disabled
0: Disabled 1: Enabled
1: Enabled
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
Sets the time that the drive continues running with reduced
Fc Reduct Time carrier frequency after the carrier reduction condition is gone.
Setting 0.00 s disables the carrier frequency reduction time.
B.9 L: Protection Function
Description
Description
Values Page
Default: 15%
Min.: 0 158
Max.: 300
Values Page
<1>
Default:
160
Min.: 50 °C
Max.: 150 °C
Default: 4
–
Range: 0 to 4
Default: 1
160
Range: 0, 1
<1>
Default:
161
Min.: 0.0%
Max.: 50.0%
Default: 1
161
Range: 0 to 2
<1>
Default:
161
Range: 0, 1
<1>
Default:
161
Range: 0 to 2
Default: 0.50 s
Min.: 0.00 –
Max.: 2.00
B
303