214
YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
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L1-01: Motor Overload (oL1) Protection
No.
(Hex.)
Name
Description
Default
(Range)
L1-01
(0480)
Motor Overload
(oL1) Protection
Sets the motor overload protection with electronic thermal
protectors.
Determined by
A1-02
(0 - 6)
This parameter enables and disables the motor overload protection with electronic thermal
protectors.
The cooling capability of the motor changes when the speed control range of the motor
changes. Use an electronic thermal protector that aligns with the permitted load
characteristics of the motor to select motor protection.
The electronic thermal protector of the drive uses these items to calculate motor overload
tolerance and supply overload protection for the motor:
•
Output Current
•
Output Frequency
•
Motor thermal characteristics
•
Time characteristics
If the drive detects motor overload, the drive will trigger an
oL1 [Motor Overload]
and
stop the drive output.
Set
H2-01 = 1F [Term MA/MB-MC Function Selection = Motor Overload Alarm (oL1)]
to set a motor overload alarm. If the motor overload level is more than 90% of the
oL1
detection level, the output terminal activates and triggers an overload alarm.
0 : Disabled
Disable motor protection when motor overload protection is not necessary or when the
drive is operating more than one motor.
Refer to
for an example of the circuit configuration to connect more than one
motor to one drive.
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
