11.9 L: Protection Functions
944 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
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.
■ L1-05: Motor Thermistor Filter Time
No.
(Hex.)
Name Description
Default
(Range)
L1-05
(0484)
Motor Thermistor
Filter Time
Sets the primary delay time constant for the PTC input signal entered to the
drive. This parameter prevents accidental motor overheat faults.
0.20 s
(0.00 - 10.00 s)
■ L1-08: oL1 Current Level
No.
(Hex.)
Name Description
Default
(Range)
L1-08
(1103)
oL1 Current Level
Sets the reference current for the motor 1 thermal overload detection.
0.0 A
(0.0 A or 10% to
150% of the drive
rated current)
When L1-08 = 0.0 A, the drive uses E2-01 [Motor Rated Current (FLA)] to detect the motor overload protection.
In PM control mode, the drive uses E5-03 [PM Motor Rated Current (FLA)] to detect the motor overload
protection.
When L1-08 ≠ 0.0 A, the set value is the reference for motor overload protection.
Note:
• Display is in these units:
–Models 2004 to 2042, 4002 to 4023: 0.01 A
–Models 2056 to 2415, 4031 to 4675: 0.1 A
• When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.
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