YASKAWA FSDrive-MV1S, Instructions Manual

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Motor Overload Protection
You can protect the motor from overload using the Inverter's built-in electronic thermal overload relay.
„ Related Constants
* 1. The factory setting depends on the Inverter capacity.
* 2. The setting range is from 10% to 200% of the Inverter rated output current.
For the motor no-load current, set E2-03 to a value less than that of E2-01.
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
E2-01
Motor rated current Sets the motor rated current in
1 A units.
These set values will become
the reference values for motor
protection, torque limits and
torque control.
This constant is automatically
set during autotuning.
0.1 to
1500.0
*2
86.6 A
*1
No Q Q 360H
Motor Rated FLA
L1-01
Motor protection
selection Sets whether the motor over-
load function is enabled or dis-
abled at electric thermal
overload relay.
0: Disabled
1: Enabled
0 or 1 1 No A A 4E0H
MOL Fault Select
L1-02
Motor protection time
constant Sets protection time when over-
load of the motor overload
detection level (L1-07) is
applied to the load status that
was lower than the motor over-
load detection start level (L1-
06).
The factory setting is 60.0 sec-
ound.
When the motor's overload
resistance is known, also set the
overload resistance protection
time for when the motor is hot
started.
1.0 to
300.0
60.0 s No A A 4E1H
MOL Time Const
L1-04
Motor overheating
operation selection Select the operation when the
motor temperature (electric
thermal) exceeds the operation
detection level.
0: Decelerate to stop
1: Coast to stop
2: Emergency stop using the
deceleration time in C1-09.
3: Continue operation
0 to 3 1 No A A 4E3H
MOL Select
L1-06
Motor overload
detection start level Sets the motor overload detec-
tion start level.
The set value must be smaller
than L1-07.
20 to
300
110% No A A 4E5H
OL1 Start Level
L1-07
Motor overload
detection level Sets the motor overload detec-
tion level.
The set value must be bigger
than L1-06.
30 to
300
150% No A A 4E6H
OL1 Level