11.9 L: PROTECTION
448 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
11.9 L: PROTECTION
◆ L1: MOTOR PROTECTION
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L1-01
(0480)
Motor Cool Type for
OL1 Calc
Sets the motor overload protection with electronic thermal protectors.
0 : Disabled
1 : VTorque
2 : CT 10:1 Speed Range
3 : CT 100:1 SpeedRange
4 : PM VTorque
5 : PM CTorque
6 : VT (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)
202
L1-02
(0481)
OL1 Protect 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)
204
L1-03
(0482)
Motor oH AL Reaction
Select
Sets drive operation when the PTC input signal entered into the drive is at the oH3
[Motor Overheat Alarm] detection level.
0 : Ramp->Stop
1 : Coast->Stop
2 : Fast Stop (C1-09)
3 : Alarm Only
3
(0 - 3)
205
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.
0 : Ramp->Stop
1 : Coast->Stop
2 : Fast Stop (C1-09)
1
(0 - 2)
205
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)
742
L1-08
(1103)
oL1 Current Level
Sets the reference current for the motor 1 thermal overload detection.
Note:
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)
742
L1-09
(1104)
M2 oL1 Curr.Level
Sets the reference current for the motor 2 thermal overload detection.
Note:
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)
742
L1-13
(046D)
Motor oL1 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)
743
◆ L2: POWER LOSS RIDE THROUGH
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L2-01
(0485)
RideThru@PwrLoss
Sets the drive operation after a momentary power loss.
0 : Disabled
1 : Enabled
0
(0, 1)
748
L2-50
(0453)
RidThruMode@PwrLoss
Sets the drive operation after a momentary power loss..
0 : Timer Controlled
1 : While CPU Active
2 : KEB Mode
3 : KEB Stop Mode
4 : KEB Decel to Stop
0
(0 - 4)
752
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