Standards Compliance
4
4.3 UL Standards
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 281
Figure 4.23 Protection Operation Time for a General-purpose Motor at Rated Output Frequency
■ 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.
■ 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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