YASKAWA Z1000U Series Quick Start Manual page 77

No. Name
Number of Auto Restart
L5-01
Attempts
Auto Restart Fault
L5-02 Output Operation
Selection
Time to Continue
L5-03
Making Fault Restarts
Fault Reset Interval
L5-04
Time
Fault Reset Operation
L5-05
Selection
L6-01 Torque Detection
Selection 1
L6-02 Torque Detection Level
1
Torque Detection Time
L6-03
1
Motor Underload
L6-13
Protection Selection
Motor Underload
L6-14 Protection Level at
Minimum Frequency
L8-02 Overheat Alarm Level
L8-03 Overheat Pre-Alarm
Operation Selection
L8-05 Input Phase Loss
Protection Selection
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide
Description
Sets the number of times the drive may
attempt to restart after the following faults
occur: GF, LF, oC, ov, PF, oL1, oL2, oL3,
STo, Uv1.
0: Fault output not active.
1: Fault output active during restart attempt.
Enabled only when L5-05 is set to 0. Causes
a fault if a fault restart cannot occur after
the set time passes.
Sets the amount of time to wait between
performing fault restarts.
0: Continuously attempt to restart while
incrementing restart counter only at a
successful restart.
1: Attempt to restart with the interval
time set in L5-04 and increment the
restart counter with each attempt.
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
9: UL6 at speed agree (alarm)
10: UL6 at run (alarm)
11: UL6 at speed agree (fault)
12: UL6 at run (fault)
Sets the overtorque and undertorque
detection level.
Sets the time an overtorque or undertorque
condition must exist to trigger torque
detection 1.
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.
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
No. Name
L8-06 Input Phase Detection
Level
Output Phase Loss
L8-07
Protection Selection
Output Ground Fault
L8-09
Detection Selection
Heatsink Cooling Fan
L8-10
Operation Selection
L8-11 Heatsink Cooling Fan
Off Delay Time
Ambient Temperature
L8-12
Setting
oL2 Characteristics
L8-15
Selection at Low Speeds
L8-18 Software Current Limit
Selection
Frequency Reduction
L8-19 Rate during Overheat
Pre-Alarm
Overcurrent Detection
L8-27
Gain
L8-29 Current Unbalance
Detection (LF2)
Main Contactor and
Cooling Fan Power
L8-32
Supply Failure
Selection
Installation Method
L8-35
Selection
L8-38 Carrier Frequency
Reduction
Carrier Frequency
L8-40 Reduction Off Delay
Time
High Current Alarm
L8-41
Selection
i.8 Parameter Table
Description
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 upon
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 reduced to 70% 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.
0: Disabled
1: Enabled
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/UL Type 1 enclosure
3: External Heatsink Installation
Note: Default setting is dependent upon
parameter o2-04, Drive Model Selection.
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Note: Default setting is dependent upon
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.
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