Parameter Details
11
11.9 L: Protection Function
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 749
1 : Coast to Stop
The drive output shuts off and the motor coasts to stop. Fault relay output terminal MA-MC will turn ON, and
MB-MC will turn OFF.
2 : Fast Stop (Use C1-09)
The drive stops the motor using the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal
MA-MC will turn ON, and MB-MC will turn OFF.
3 : Alarm Only
oH3 appears on the keypad, and operation continues. The output terminal set for Alarm [H2-01 to H2-05 = 10]
switches 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.
0.0A
(0.0 A or 10% to 150% of
the drive rated current)
When L1-08 = 0.0 A, the motor overload protection is detected on the basis of E2-01 [Motor Rated Current
(FLA)].
When L1-08 ≠ 0.0 A, the set value is used as the reference for motor overload protection.
Note:
• Display is in the following units:
–2003 to 2033, 4002 to 4018: 0.01 A units
–2047 to 2415, 4024 to 4605: 0.1 A units
• Values greater than 0.0 A and less than 10% of the drive rated current cannot be set.
■ L1-09: oL1 Current Level for Motor 2
No.
(Hex.)
Name Description
Default
(Range)
L1-09
(1104)
oL1 Current Level for
Motor 2
Sets the reference current for the motor 2 thermal overload detection.
0.0A
(0.0 A or 10 to150% of the
drive rated current)
When you set this parameter to 0.0 A, E4-01 [Motor 2 Rated Current] is used as the reference for motor overload
protection.
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