YASKAWA Z1000 Quick Start Manual page 75

No. Name
Torque Detection Time
L6-03 1
Motor Underload
L6-13 Protection Selection
Motor Underload
Protection Level at
L6-14
Minimum Frequency
Overheat Alarm Level An overheat alarm occurs when heatsink
L8-02
Overheat Pre-Alarm
L8-03
Operation Selection
Input Phase Loss
L8-05
Protection Selection
Input Phase Detection
L8-06
Level
Output Phase Loss
L8-07
Protection Selection
Output Ground Fault
L8-09
Detection Selection
Heatsink Cooling Fan
L8-10
Operation Selection
Heatsink Cooling Fan
L8-11
Off Delay Time
Ambient Temperature
L8-12
Setting
oL2 Characteristics
L8-15 Selection at Low
Speeds
Software Current Limit
L8-18
Selection
Frequency Reduction
L8-19 Rate during Overheat
Pre-Alarm
Overcurrent Detection
L8-27
Gain
YASKAWA ELECTRIC TOEP C710616 54A YASKAWA AC Drive - Z1000 Quick Start Guide
Description
Sets the time an overtorque or undertorque
condition must exist to trigger torque
detection 1.
Sets the motor underload protection (UL6)
based on motor load.
0: Enabled (Base frequency)
1: Enabled (Max frequency)
Sets the UL6 detection level at minimum
frequency by percentage of drive rated
current.
temperature exceeds the L8-02 level.
0: Ramp to stop. A fault is triggered.
1: Coast to stop. A fault is triggered.
2: Fast Stop. Decelerate to stop using the
deceleration time in C1-09. A fault is
triggered.
3: Continue operation. An alarm is
triggered.
4: Continue operation at reduced speed
as set in L8-19.
Selects the detection of input current phase
loss, power supply voltage imbalance, or
main circuit electrolytic capacitor
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 ripple is greater than
the value set to L8-06.
Detection Level = 100% = Voltage class x
0: Disabled
1: Enabled (triggered by a single phase
loss)
2: Enabled (triggered when two phases are
lost)
0: Disabled
1: Enabled
Note: Default setting is
dependent on parameter
o2-04, Drive Model
Selection.
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.
Sets a delay time to shut off the cooling fan
after the Run command is removed when
L8-10 = 0.
Enter the ambient temperature. This value
adjusts the oL2 detection level.
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6
Hz. It is halved at 0 Hz.
0: Disabled
1: Enabled
Specifies the frequency reference reduction
gain at overheat pre-alarm when L8-03 = 4.
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.
No. Name
Current Unbalance
L8-29
Detection (LF2)
Main Contactor and
Cooling Fan Power
L8-32
Supply Failure
Selection
Installation Method
L8-35
Selection
Carrier Frequency
L8-38
Reduction
Carrier Frequency
L8-40 Reduction Off Delay
Time
High Current Alarm
L8-41
Selection
Drive Mode Unit
o1-01
Monitor Selection
User Monitor Selection
o1-02
after Power Up
HOA Keypad Display
o1-03
Selection
User Monitor Selection
o1-06
Mode
Second Line Monitor
o1-07
Selection
i.8 Parameter Table
Description
0: Disabled
1: Enabled
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.
0: IP00/Open-Chassis enclosure
2: IP20/NEMA 1, UL Type 1 enclosure
3: External Heatsink Installation
Note: Default setting is
determined by the drive
model:
Setting 2: Models 2A0011
to 2A0211 and 4A0005 to
4A0096
Setting 0: Models 2A0273
to 2A0396 and 4A0124 to
4A0590
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Note: Default setting is
dependent on parameters
A1-02, Control Method
Selection, and o2-04,
Drive Model Selection.
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.
0: Disabled
1: Enabled.
An alarm is triggered at output currents
above 150% of drive rated current.
Selects the content of the last monitor that
is shown when scrolling through Drive
Mode display. Enter the last three digits of
the monitor parameter number to be
displayed: Uo-oo.
1: Frequency reference (U1-01)
2: Direction
3: Output frequency (U1-02)
4: Output current (U1-03)
5: User Monitor
Sets the units the drive should use to display
the frequency reference and motor speed
monitors.
0: 0.01 Hz
1: 0.01% (100% = E1-04)
2: r/min (calculated using the number of
motor poles setting in E2-04, E4-04, or
E5-04)
3: User-selected units (set by o1-10 and
o1-11)
0: 3 Monitor Sequential
(Displays the next two sequential monitors)
1: 3 Monitor Selectable (o1-07 and o1-08
selected monitor are shown)
Selects the monitor that is shown in the
second line.
Enter the last three digits of the monitor
parameter number to be displayed: Uo-
oo. For example, set "403" to display
monitor parameter U4-03.
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