No.
(Addr.
Hex)
Name LCD Display Description Values Page
L1-17
(0442)
Motor 2 Thermistor
Selection (NTC)
M2 OH5 Fault Sel
0: Disabled
1: Enabled
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 0
Range: 0, 1
–
L1-18
(0443)
Motor 2 Overheat
Temperature
M2 OH5 level
Sets the temperature for motor 1 that triggers an overheat fault
(oH5).
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 120 °C
Min.: 50
Max.: 200
–
L1-19
(0444)
Operation at Thermistor
Disconnect (THo)
(NTC)
Tho Stop sel
Determines drive response when a thermistor disconnect fault
(THo) occurs.
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 (“THo” will flash)
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 3
Range: 0 to 3
–
L1-20
(0445)
Operation at Motor
Overheat (oH5)
OH5 Stop sel
Determines drive response when a motor overheat fault (oH5)
occurs.
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 (“oH5” will flash)
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 1
Range: 0 to 3
–
<1> Default setting is determined by parameter A1-02, Control Method Selection.
<2>
Available in drive software versions PRG: 1019 and later.
<3> Display is in the following units:
2A0004 to 2A0040, 4A0002 to 4A0023, and 5A0007 to 5A0017: 0.01 A units.
2A0056 to 2A0415, 4A0031 to 4A0675, and 5A0022 to 5A0242: 0.1 A units.
u
L2: Momentary Power Loss Ride-Thru
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L2-01
(0485)
Momentary Power Loss
Operation Selection
PwrL Selection
0: Disabled
1: Enbl with Timer
2: Enbl whl CPU act
3: KEB Mode
4: KEB Stop Mode
5: KEB Decel to Stp
0: Disabled. Drive trips on Uv1 fault when power is lost.
1: Recover within the time set in L2-02. Uv1 will be detected
if power loss is longer than L2-02.
2: Recover as long as CPU has power. Uv1 is not detected.
3: KEB deceleration for the time set to L2-02.
4: KEB deceleration as long as CPU has power.
5: KEB deceleration to stop.
Default: 0
Range: 0 to 5
–
L2-02
(0486)
Momentary Power Loss
Ride-Thru Time
PwrL Ridethru t
Sets the Power Loss Ride-Thru time. Enabled only when L2-01
= 1 or 3.
Default:
<1>
Min.: 0.0 s
Max.: 25.5 s
–
L2-03
(0487)
Momentary Power Loss
Minimum Baseblock
Time
PwrL Baseblock t
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after performing Power
Loss Ride-Thru.
Increasing the time set to L2-03 may help if overcurrent or
overvoltage
occur during Speed Search or during DC Injection
Braking.
Default:
<1>
Min.: 0.1 s
Max.: 5.0 s
–
L2-04
(0488)
Momentary Power Loss
Voltage Recovery Ramp
Time
PwrL V/F Ramp t
Sets the time for the output voltage to return to the preset V/f
pattern during Speed Search.
Default:
<1>
Min.: 0.0 s
Max.: 5.0 s
–
L2-05
(0489)
Undervoltage Detection
Level (Uv1)
PUV Det Level
Sets the DC bus undervoltage trip level. Default: 190
Vdc
<2> <3>
Min.: 150 Vdc
Max.: 210 Vdc
<3>
–
B.8 L: Protection Function
300
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
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