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YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Load Tolerance
Cooling Capability
Overload Characteristics
(at 100% motor load)
This motor is designed to operate
with commercial line power. Operate
at a 50 Hz base frequency to
maximize the motor cooling ability.
If the motor operates at frequencies
less than commercial line power, the
drive will detect
oL1
. The drive
triggers a fault relay output and the
motor coasts to stop.
■
L1-02: Motor Overload Protection Time
No.
(Hex.)
Name
Description
Default
(Range)
L1-02
(0481)
Motor Overload
Protection 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)
Set the overload tolerance time to the length of time that the motor can operate at 150%
load from continuous operation at 100% load.
When the motor operates at 150% load continuously for 1 minute after continuous
operation at 100% load (hot start), the default setting triggers the electronic thermal
protector.
shows an example of the electronic thermal protector operation time. Motor
overload protection operates in the range between a cold start and a hot start.
This example shows a general-purpose motor operating at the base frequency with
L1-02
set to 1.0 min.
•
Cold start
Shows the motor protection operation time characteristics when the overload occurs
immediately after starting operation from a complete stop.
•
Hot start
Shows the motor protection operation time characteristics when overload occurs from
continuous operation below the motor rated current.
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV