Parameter Details
5
5.8 L: Protection Functions
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 319
Shows the motor protection operation time characteristics when overload occurs from continuous operation below
the motor rated current.
Figure 5.70 Protection Operation Time for a General-purpose Motor at Rated Output Frequency
â– L1-03: Motor Thermistor oH Alarm Select
No.
(Hex.)
Name Description
Default
(Range)
L1-03
(0482)
Motor Thermistor oH Alarm
Select
Sets drive operation when the PTC input signal entered into the drive is at the oH3 [Motor Overheat
Alarm] detection level.
3
(0 - 3)
0 : Ramp to Stop
The drive ramps the motor to stop in the deceleration time. Fault relay output terminal MA-MC turns ON and MB-
MC turns OFF.
1 : Coast to Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal MA-MC turns ON, and MB-MC turns
OFF.
2 : Fast Stop (Use C1-09)
The drive stops the motor in the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal MA-MC
turns ON, and MB-MC turns OFF.
3 : Alarm Only
The keypad shows oH3, and operation continues. The output terminal set for Alarm [H2-01 to H2-03 = 10] turns ON.
â– L1-04: Motor Thermistor oH Fault Select
No.
(Hex.)
Name Description
Default
(Range)
L1-04
(0483)
Motor Thermistor oH Fault
Select
Sets the drive operation when the PTC input signal to the drive is at the oH4 [Motor Overheat Fault
(PTC Input)] detection level.
1
(0 - 2)
0 : Ramp to Stop
The drive ramps the motor to stop in the deceleration time. Fault relay output terminal MA-MC turns ON and MB-
MC turns OFF.
1 : Coast to Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal MA-MC turns ON, and MB-MC turns
OFF.
2 : Fast Stop (Use C1-09)
The drive stops the motor in the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal MA-MC
turns ON, and MB-MC turns OFF.
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