Yaskawa Z1000U - Manual (Page 293)

No.
(Addr.
Hex)
Name LCD Display Description Values Page
L6-03
(04A3)
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
129
L6-13
(062E)
Motor Underload
Protection Selection
Underload Select
0: Base Freq Enable
1: Max Freq Enable
Sets the motor underload protection (ULo) based on motor
load.
0: Overtorque/undertorque detection enabled
1: Base frequency motor load enabled
Default: 0
Range: 0, 1
128
L6-14
(062F)
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
128
u L8: Drive Protection
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L8-02
(04AE) 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
168
L8-03
(04AF)
Overheat Pre-Alarm
Operation Selection
OH Pre-Alarm Sel
0: Ramp to stop
1: Coast to stop
2: Fast-Stop
3: Alarm only
4: Run@L8-19 Rate
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.
Default: 4
Range: 0 to 4
169
L8-06
(04B2)
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%
169
L8-07
(04B3)
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
170
L8-09
(04B5)
Output Ground Fault
Detection Selection
Grnd Flt Det Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: <1>
Range: 0, 1
170
L8-10
(04B6)
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
170
L8-11
(04B7)
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: 60 s
Min.: 0
Max.: 300
170
L8-12
(04B8)
Ambient Temperature
Setting
Ambient Temp
Enter the ambient temperature. This value adjusts the oL2
detection level.
Default: 40 °C
Min.: -10
Max.: 50
170
L8-15
(04BB)
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
171
L8-18
(04BE)
Software Current Limit
Selection
Soft CLA Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
171
L8-19
(04BF)
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.: 10.0
Max.: 100.0
171
L8-27
(04DD)
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.: 400.0
171
B.9 L: Protection Function
YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual 293
B
Parameter List