10.11 L: Protection Function; L1: Motor Protection - YASKAWA GA700 Technical Manual

10.11 L: Protection Function

10.11 L: Protection Function

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L1: Motor Protection

No.
Name
(Hex.)
L1-01 Motor Overload
(oL1) Protection
(0480)
L1-02 Motor Overload
(oL1) Protection
(0481)
L1-03 Motor OH Alarm
Operation Select
(0482)
L1-04 Motor OH Fault
Operation Select
(0483)
L1-05 Motor Temp Input
Filter Time
(0484)
L1-08 oL1 Current Level
(1103)
L1-09 oL1 Current Level
for Motor 2
(1104)
L1-13 Cont
Electrothermal Ope
(046D)
Select
466
Description
V/f CL-V/f OLV CLV AOLV
Enables or disables the motor overload protection using electronic
thermal protectors.
0 : Disabled
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:
Set L1-01 = 1 to 6 [Enabled] when only one motor is connected
to a drive. External thermal relays are not necessary in such
cases.
V/f CL-V/f OLV CLV AOLV
Sets the operation time for the electronic thermal protector of the
drive to protect the motor. Normally there is no need to change this
setting.
V/f CL-V/f OLV CLV AOLV
Selects the drive operation when the PTC input signal input into the
drive reaches the detection level of oH3 [Motor Overheat Alarm].
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
Selects the drive operation when the PTC input signal input into the
drive reaches the detection level of oH4 [Motor Overheat Failure].
0 : Ramp to stop
1 : Coast to stop
2 : Fast Stop
V/f CL-V/f OLV CLV AOLV
Sets the primary delay time constant for the PTC input signal input
to the drive. This parameter is used to prevent accidental detections
of motor overheat fault.
V/f CL-V/f OLV CLV AOLV
Sets the reference current for motor thermal overload detection for
motor 1 in amperes.
Note:
Cannot be set to a value smaller than 10% of drive rated current
when the current level is set to a value greater than 0.0 A.
V/f CL-V/f OLV CLV AOLV
Sets the current value used as the reference for detecting the motor
overload state regarding the motor 2 electronic thermal protector.
Note:
Values greater than 0.0 A and less than 10% of the drive rated
current cannot be set.
V/f CL-V/f OLV CLV AOLV
Selects whether to retain the current electronic thermal protector
value when the power supply is interrupted.
0 : Disabled
1 : Enabled
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
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
Default Setting
Ref.
(Range)
Determined by A1- 219
02
(0 - 6)
1.0 min 222
(0.1 - 5.0 min)
3 222
(0 - 3)
1 223
(0 - 2)
0.20 s 832
(0.00 - 10.00 s)
0.0 A 832
(0.0 A or 10% to
150% of the drive
rated current)
0.0 A 833
(0.0 A or 10
to150% of the
drive rated current)
1 833
(0, 1)