L: Protection Function; L: Protection Function; L1: Motor Protection - YASKAWA A1000 Technical Manual

B.8 L: Protection Function
B.8 L: Protection Function
L parameters provide protection to the drive and motor, including control during momentary power loss, Stall Prevention,
frequency detection, fault restarts, overtorque detection, torque limits, and other types of hardware protection.
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L1: Motor Protection

No.
(Addr. Name
Hex)
L1-01 Motor Overload Protection
(480) Selection
L1-02 Motor Overload Protection
(481) Time
Motor Overheat Alarm
L1-03 Operation Selection
(482) (PTC input)
Motor Overheat Fault
L1-04 Operation Selection
(483) (PTC input)
L1-05 Motor Temperature Input
(484) Filter Time (PTC input)
L1-13 Continuous Electrothermal
(46D) Operation Selection
L1-15 Motor 1 Thermistor
(440) Selection (NTC)
L1-16 Motor 1 Overheat
(441) Temperature
L1-17 Motor 2 Thermistor
(442) Selection (NTC)
L1-18 Motor 2 Overheat
(443) Temperature
L1-19 Operation at Thermistor
(444) Disconnect (THo) (NTC)
214
0: Disabled
1: General purpose motor (standard fan cooled)
2: Drive dedicated motor with a speed range of 1:10
3: Vector motor with a speed range of 1:100
4: PM motor with variable torque
5: PM motor with constant torque control
6: General purpose motor (50 Hz)
The drive may not be able to provide protection when using multiple motors,
even if overload is enabled in L1-01. Set L1-01 to 0 and install separate thermal
relays to each motor.
Sets the motor thermal overload protection (oL1) time.
Sets operation when the motor temperature analog input (H3-02, H3-06, or
H3-10 = E) exceeds the oH3 alarm level.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time in C1-09)
3: Alarm only ("oH3" will flash)
Sets stopping method when the motor temperature analog input (H3-02,
H3-06, or H3-10 = E) exceeds the oH4 fault level.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time in C1-09)
Adjusts the filter for the motor temperature analog input (H3-02, H3-06, or
H3-10 = E).
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Note: This parameter is only available in models CIMR-Ao4A0930 and
4A1200.
Sets the temperature for motor 1 that triggers an overheat fault (oH5).
Note: This parameter is only available in models CIMR-Ao4A0930 and
4A1200.
0: Disabled
1: Enabled
Note: This parameter is only available in models CIMR-Ao4A0930 and
4A1200.
Sets the temperature for motor 1 that triggers an overheat fault (oH5).
Note: This parameter is only available in models CIMR-Ao4A0930 and
4A1200.
Determines drive response when a thermistor disconnect fault (THo) occurs.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time set to C1-09)
3: Alarm only ("THo" will flash)
Note: This parameter is only available in models CIMR-Ao4A0930 and
4A1200.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Description Values Page
<1>
Default:
–
Range: 0 to 6
Default: 1.0 min
Min.: 0.1 –
Max.: 5.0
Default: 3
–
Range: 0 to 3
Default: 1
–
Range: 0 to 2
Default: 0.20 s
Min.: 0.00 –
Max.: 10.00
Default: 1
–
Range: 0, 1
Default: 0
–
Range: 0, 1
Default: 120 °C
Min.: 50 –
Max.: 200
Default: 0
–
Range: 0, 1
Default: 120 °C
Min.: 50 –
Max.: 200
Default: 3
–
Range: 0 to 3