11.11 L: Protection Functions; L1: Motor Protection; L2: Power Loss Ride Through - YASKAWA GA700 Series Technical Manual

11.11 L: Protection Functions

11.11 L: Protection Functions
◆

L1: Motor Protection

No.
Name
(Hex.)
L1-01 Motor Overload (oL1)
Protection
(0480)
L1-02 Motor Overload
Protection Time
(0481)
L1-03 Motor Thermistor oH
Alarm Select
(0482)
L1-04 Motor Thermistor oH
Fault Select
(0483)
L1-05 Motor Thermistor Filter
Time
(0484)
L1-08 oL1 Current Level
(1103)
L1-09 oL1 Current Level for
Motor 2
(1104)
L1-13 Motor Overload Memory
Selection
(046D)
◆

L2: Power Loss Ride Through

No.
Name
(Hex.)
L2-01 Power Loss Ride
Through Select
(0485)
L2-02 Power Loss Ride
Through Time
(0486)
548
Description
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
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
V/f CL-V/f OLV CLV AOLV
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)
V/f CL-V/f OLV CLV AOLV
Sets the primary delay time constant for the PTC input signal entered to the drive. This
parameter prevents accidental motor overheat faults.
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
Sets the function that keeps the current electronic thermal protector value when the
drive stops receiving power.
0 : Disabled
1 : Enabled
Description
V/f CL-V/f OLV CLV AOLV
Sets the drive operation after a momentary power loss.
0 : Disable
1 : Enabled
2 : Enabled while CPU Power Active
3 : Kinetic Energy Backup: L2-02
4 : Kinetic Energy Backup: CPU Power
5 : Kinetic Energy Backup: DecelStop
Note:
When the CPU is inactive, b1-17 [Run Command at Power Up] sets operation at
power up.
V/f CL-V/f OLV CLV AOLV
Sets the maximum time that the drive will wait until trying to restart after power loss.
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA SIEPC71061705H GA700 Series Technical Manual
Default
Ref.
(Range)
Determined by A1-02 261
(0 - 6)
1.0 min 263
(0.1 - 5.0 min)
3 264
(0 - 3)
1 264
(0 - 2)
0.20 s 876
(0.00 - 10.00 s)
0.0 A 876
(0.0 A or 10% to 150%
of the drive rated
current)
0.0 A 876
(0.0 A or 10 to150% of
the drive rated current)
1 876
(0, 1)
Default
Ref.
(Range)
0 881
(0 - 5)
Determined by o2-04, 883
C6-01
(0.0 - 25.5 s)