YASKAWA GA700 Technical Manual page 219

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E9-06: Motor Rated Current
No.
Name
(Hex.)
E9-06 Motor Rated Current
(11E9)
Note:
Values appear in the following units.
• 2004 to 2042, 4002 to 4023: 0.01 A units
• 2056 to 2415, 4031 to 4675: 0.1 A units
The setting value of E9-06 is the reference value for motor protection. Enter the motor rated current as written on
the motor nameplate. The value of E9-06 is automatically set to the value input for [Motor Rated Current] by the
Auto-Tuning process for motor parameter settings.
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L1-01: Motor Overload Protection Select
No.
Name
(Hex.)
L1-01 Motor Overload
(oL1) Protection
(0480)
Enables or disables the motor overload protection using electronic thermal protectors.
Cooling capability varies depending on the speed control range of the motor. Select motor protection using an
electronic thermal protector that matches the allowable load characteristics of the motor being used.
The drive has overload protection for the motor using an electronic thermal protector. The electronic thermal
protector of the drive calculates motor overload tolerance based on output current, output frequency, motor
thermal characteristics, and time characteristics to provide overload protection for the motor. The drive triggers an
oL1[Motor Overload] and shuts off the drive output when the drive detects motor overload.
It is also possible to set a motor overload alarm. Set H2-01 = 1F [Terminal M1-M2 Function Selection = Motor
overload alarm (oL1)] to set a motor overload alarm. When the motor overload level rises above 90% of the oL1
detection level, the output terminal switches ON and triggers an overload alarm.
Note:
Set L1-01 = 1 to 6 [Enabled] to enable motor protection when operating a single motor. External thermal relays are not necessary in
such cases.
0 : Disabled
Disable motor protection when motor overload protection is not required or when the drive is operating more than
one motor.
The following diagram shows an example of the circuit configuration when connecting multiple motors to a single
drive.
Figure 4.15 Protection Circuit Configuration when Connecting Multiple Motors to Single Drive
NOTICE: The motor cannot be protected by electronic thermal protection when one drive is running two or more motors
simultaneously or the motor has a rated current significantly larger than that of standard motors (underwater motors, for
example). Add thermal relays to each motor after setting L1-01 = 0 [Motor Overload Protection Select = Disabled] and configure
circuits to protect each motor. The motor may fail if handled improperly.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the motor rated current in amperes.
V/f CL-V/f OLV CLV AOLV
Enables or disables the motor overload protection using electronic thermal
protectors.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
4.3 UL Standards
Default Setting
(Range)
Determined by E9-01
and o2-04
(10% to 200% of the
drive rated current)
Default Setting
(Range)
Determined by A1-02
(0 - 6)
4
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