12 UL Standards
56 YASKAWA TOEPC7106170VA GA800 600 V Drive Installation & Primary Operation
■ E2-01: Motor Rated Current (FLA)
No.
(Hex.)
Name Description
Default
(Range)
E2-01
(030E)
Motor Rated Current (FLA)
Sets the motor rated current in amps.
Determined by o2-04, C6-01
(10% to 200% of the drive
rated current)
Note:
• If E2-01 < E2-03 [Motor No-Load Current], the drive will detect oPE02 [Parameter Range Setting Error].
• When the drive model changes, the display units for this parameter also change.
–0.1 A: models 5382 to 5472
The value set for E2-01 becomes the reference value for motor protection, the torque limit, and torque control. Enter
the motor rated current shown on the motor nameplate. Auto-Tuning the drive will automatically set E2-01 to the
value input for “Motor Rated Current”.
■ 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 - 3, 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 M1-M2 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 turns ON 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 Figure 12.2 for an example of the circuit configuration to connect more than one motor to one drive.
Figure 12.2 Protection Circuit Configuration to Connect More than One Motor to One Drive
NOTICE
When you connect more than one motor to one drive or when the motor amp rating is higher than the drive amp
rating, set L1-01 =0 [Motor Overload (oL1) Protection = Disabled] and install thermal overload relays for each motor. The electronic
thermal protection of the drive will not function and it can cause damage to the motor.
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