Yaskawa AC Drive Z1000 User Manual
Page 314
No.
(Addr.
Hex)
Name
LCD Display
Description
Values
Page
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
Default:
<1>
Min.: 0.0%
Max.: 50.0%
L8-07
(4B3)
Output Phase Loss
Protection Selection
Outp Ph Loss Det
0: Disabled
1: 1PH Loss Det
2: 2/3PH Loss Det
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
Grnd Flt Det Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default:
<1>
Range: 0, 1
L8-10
(4B6)
Heatsink Cooling Fan
Operation Selection
Fan On/Off Sel
0: Dur Run (OffDly)
1: Always On
0: During run only. Fan operates only during run for L8-11
seconds after stop.
1: Fan always on. Cooling fan operates whenever the drive is
powered up.
Default: 0
Range: 0, 1
L8-11
(4B7)
Heatsink Cooling Fan
Off Delay Time
Fan Delay Time
Sets a delay time to shut off the cooling fan after the Run
command is removed when L8-10 = 0.
Default: 300 s
Min.: 0
Max.: 300
L8-12
(4B8)
Ambient Temperature
Setting
Ambient Temp
Enter the ambient temperature. This value adjusts the oL2
detection level.
Default: 40 °C
Min.: 40
Max.: 60
L8-15
(4BB)
oL2 Characteristics
Selection at Low Speeds
OL2 Sel @ L-Spd
0: Disabled
1: Enabled
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz. Default: 1
Range: 0, 1
L8-18
(4BE)
Software Current Limit
Selection
Soft CLA Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
L8-19
(4BF)
Frequency Reduction
Rate during Overheat
Pre-Alarm
Fc Red dur OHAlm
Specifies the frequency reference reduction gain at overheat
pre-alarm when L8-03 = 4.
Default: 20.0%
Min.: 0.0
Max.: 100.0
L8-27
(4DD)
Overcurrent Detection
Gain
OC Level
Sets the gain for overcurrent detection as a percentage of the
motor rated current. Overcurrent is detected using the lower
value between the overcurrent level of the drive or the value set
to L8-27.
Default: 300.0%
Min.: 0.0
Max.: 300.0
L8-29
(4DF)
Current Unbalance
Detection (LF2)
LF2 Flt Det Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
L8-32
(4E2)
Main Contactor and
Cooling Fan Power
Supply Failure Selection
MC/FAN PS FltSel
0: Ramp to stop
1: Coast to stop
2: Fast-Stop
3: Alarm only
4: Run@L8-19 Rate
Determines drive response when a fault occurs with the internal
cooling fan.
0: Ramp to stop
1: Coast to stop
2: Fast stop (Decelerate to stop using the deceleration time set
to C1-09)
3: Alarm only (“FAn” will flash)
4: Continue operation at reduced speed as set to L8-19.
Default: 1
Range: 0 to 4
L8-35
(4EC)
Installation Method
Selection
Installation Sel
0: IP00/OpenChassis
2: IP20/Nema Type 1
3: ExternalHeatsink
0: IP00/Open-Chassis enclosure
2: IP20/NEMA Type 1 enclosure
3: External Heatsink Installation
Default:
<1> <2>
<3>
Range: 0, 2, 3
L8-38
(4EF)
Carrier Frequency
Reduction
Fc Reduct dur OL
0: Disabled
1: Active below 6Hz
2: Active @ any Spd
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default:
<4>
Range: 0 to 2
L8-40
(4F1)
Carrier Frequency
Reduction Off Delay
Time
Fc Reduct Time
Sets the time that the drive continues running with reduced
carrier frequency after the carrier reduction condition is gone.
Setting 0.00 s disables the carrier frequency reduction time.
Default: 0.50 s
Min.: 0.00
Max.: 2.00
L8-41
(4F2)
High Current Alarm
Selection
High Cur Alm Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled.
An alarm is triggered at output currents above 150% of drive
rated current.
Default: 0
Range: 0, 1
L8-97
(3104)
Carrier Frequency
Reduction Selection
during oH Pre-Alarm
FC Sel dur OHAlm
0: Disabled
1: Enabled
Carrier frequency reduction protection selection. It is reduced
to the carrier frequency at oH pre-alarm.
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
–
B.8 L: Protection Function
314
YASKAWA ELECTRIC TOEP C710616 45E YASKAWA AC Drive – Z1000 User Manual