L1: Motor Protection

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-01 (0480)	Motor Overload (oL1) Protection	Sets the motor overload protection with electronic thermal protectors. 0 Disable 1 Variable Torque 2 Constant Torque 10:1 Speed Range 3 Constant Torque 100:1 SpeedRange 4 PM Variable Torque 5 PM Constant Torque 6 Variable Torque (50Hz) Note: When only one motor is connected to a drive, set L1-01 = 1 to 6 [Enabled]. External thermal relays are not necessary in these conditions.	Determined by A1-02 (0 - 6)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-01

(0480)

Motor Overload (oL1) Protection

Sets the motor overload protection with electronic thermal protectors.

0
Disable
1
Variable Torque
2
Constant Torque 10:1 Speed Range
3
Constant Torque 100:1 SpeedRange
4
PM Variable Torque
5
PM Constant Torque
6
Variable Torque (50Hz)

Note:

When only one motor is connected to a drive, set L1-01 = 1 to 6 [Enabled]. External thermal relays are not necessary in these conditions.

Determined by A1-02

(0 - 6)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-02 (0481)	Motor Overload Protection Time	Sets the operation time for the electronic thermal protector of the drive to prevent damage to the motor. Usually it is not necessary to change this setting.	1.0 min (0.1 - 5.0 min)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-02

(0481)

Motor Overload Protection Time

Sets the operation time for the electronic thermal protector of the drive to prevent damage to the motor. Usually it is not necessary to change this setting.

1.0 min

(0.1 - 5.0 min)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
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. 0 Ramp to Stop 1 Coast to Stop 2 Fast Stop (Use C1-09) 3 Alarm Only	3 (0 - 3)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

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.

0
Ramp to Stop
1
Coast to Stop
2
Fast Stop (Use C1-09)
3
Alarm Only

(0 - 3)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
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. 0 Ramp to Stop 1 Coast to Stop 2 Fast Stop (Use C1-09)	1 (0 - 2)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

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.

0
Ramp to Stop
1
Coast to Stop
2
Fast Stop (Use C1-09)

(0 - 2)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
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)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

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)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-08 (1103)	oL1 Current Level	Sets the reference current for the motor 1 thermal overload detection. When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.	0.0 A (0.0 A or 10% to 150% of the drive rated current)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-08

(1103)

oL1 Current Level

Sets the reference current for the motor 1 thermal overload detection. When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.

0.0 A

(0.0 A or 10% to 150% of the drive rated current)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-09 (1104)	oL1 Current Level for Motor 2	Sets the reference current for the motor 2 thermal overload detection. When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.	0.0 A (0.0 A or 10 to150% of the drive rated current)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-09

(1104)

oL1 Current Level for Motor 2

Sets the reference current for the motor 2 thermal overload detection. When the current level > 0.0 A, you cannot set this value < 10% of drive rated current.

0.0 A

(0.0 A or 10 to150% of the drive rated current)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-13 (046D)	Motor Overload Memory Selection	Sets the function that keeps the current electronic thermal protector value when the drive stops receiving power. 0 Disabled 1 Enabled	1 (0, 1)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-13

(046D)

Motor Overload Memory Selection

Sets the function that keeps the current electronic thermal protector value when the drive stops receiving power.

0
Disabled
1
Enabled

(0, 1)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-15 (0440) Expert	Motor 1 NTC Thermistor Select	Sets the thermistor function for motor 1. 0 Disabled 1 Enabled	0 (0, 1)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-15

(0440)

Expert

Motor 1 NTC Thermistor Select

Sets the thermistor function for motor 1.

0
Disabled
1
Enabled

(0, 1)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-16 (0441) Expert	Motor 1 Overheat Temperature	Sets the overheat temperature for motor 1 in °C.	120 °C (50 – 200 °C)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-16

(0441)

Expert

Motor 1 Overheat Temperature

Sets the overheat temperature for motor 1 in °C.

120 °C

(50 – 200 °C)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-17 (0442) Expert	Motor 2 NTC Thermistor Select	Sets the thermistor function for motor 2. 0 Disabled 1 Enabled	0 (0, 1)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-17

(0442)

Expert

Motor 2 NTC Thermistor Select

Sets the thermistor function for motor 2.

0
Disabled
1
Enabled

(0, 1)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-18 (0443) Expert	Motor 2 Overheat Temperature	Sets the overheat temperature for motor 2 in °C.	120 °C (50 – 200 °C)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-18

(0443)

Expert

Motor 2 Overheat Temperature

Sets the overheat temperature for motor 2 in °C.

120 °C

(50 – 200 °C)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-19 (0444) Expert	NTC Thermistor Disconnect Select	Determines drive operation when the drive detects THo [Thermistor Disconnect]. 0 Ramp to Stop The drive ramps to stop in the set 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 THo [Thermistor Disconnect], and the drive continues to operate. The output terminal set to H2-01 to H2-04 = 10 [Alarm] activates.	1 (0 - 3)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-19

(0444)

Expert

NTC Thermistor Disconnect Select

Determines drive operation when the drive detects THo [Thermistor Disconnect].

0
Ramp to Stop: The drive ramps to stop in the set 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 THo [Thermistor Disconnect], and the drive continues to operate. The output terminal set to H2-01 to H2-04 = 10 [Alarm] activates.

(0 - 3)

Details

No. (Hex.)	Name	Description	Default (Range)	Ref.
L1-20 (0445) Expert	Motor Overheat (oH5) Selection	Sets the drive operation when the NTC input signal to the drive is at the oH5 [Motor Overheat (NTC Input)] detection level. 0 Ramp to Stop The drive ramps to stop in the set 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 oH5 [Motor Overheat (NTC Input)], and the drive continues to operate. The output terminal set to H2-01 to H2-04 = 10 [Alarm] activates.	1 (0 - 3)	Details

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

L1-20

(0445)

Expert

Motor Overheat (oH5) Selection

Sets the drive operation when the NTC input signal to the drive is at the oH5 [Motor Overheat (NTC Input)] detection level.

0
Ramp to Stop: The drive ramps to stop in the set 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 oH5 [Motor Overheat (NTC Input)], and the drive continues to operate. The output terminal set to H2-01 to H2-04 = 10 [Alarm] activates.

(0 - 3)

Details