12.8 L: PROTECTION
742 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
1 : Coast->Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal 1NO-1CM turns ON, and 1NC-
1CM turns OFF.
2 : Fast Stop (C1-09)
The drive stops the motor in the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal 1NO-
1CM turns ON, and 1NC-1CM turns OFF.
3 : Alarm Only
The keypad shows oH3, and operation continues. The output terminal set for Alarm [H2-01 to H2-03 = 4] turns
ON.
■ Motor oH FLT Reaction Select
No.
(Hex.)
Name Description
Default
(Range)
L1-04
(0483)
Motor oH FLT Reaction
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->Stop
The drive ramps the motor to stop in the deceleration time. Fault relay output terminal 1NO-1CM turns ON and
1NC-1CM turns OFF.
1 : Coast->Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal 1NO-1CM turns ON, and 1NC-
1CM turns OFF.
2 : Fast Stop (C1-09)
The drive stops the motor in the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal 1NO-
1CM turns ON, and 1NC-1CM turns OFF.
■ L1-05 Motor Therm.Filter Time
No.
(Hex.)
Name Description
Default
(Range)
L1-05
(0484)
Motor Therm.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 [Mot Rated Current (FLA)] to detect the motor overload protection. In
PM control mode, the drive uses E5-03 [PM Mot 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 4002 to 4023: 0.01 A
–Models 4031 to 4675: 0.1 A
• When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.
■ L1-09 M2 oL1 Curr.Level
No.
(Hex.)
Name Description
Default
(Range)
L1-09
(1104)
M2 oL1 Curr.Level
Sets the reference current for the motor 2 thermal overload detection.
0.0 A
(0.0 A or 10 to 150% of the
drive rated current)
When L1-09 = 0.0 A, the drive uses E4-01 [M2 Rated Current (FLA)] to detect the motor overload protection.
When L1-09 ≠ 0.0 A, the set value is the reference for motor overload protection.
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