YASKAWA J1000 CIMR-JC series Quick Start Manual page 34

8 Instructions for UL and cUL
E2-01 Motor Rated Current

Setting Range: Model Dependent
Factory Default: Model Dependent
The motor rated current parameter (E2-01) protects the motor. The motor protection
parameter L1-01 is set as factory default. Set E2-01 to the full load amps (FLA) stamped on
the nameplate of the motor.
The operator must enter the rated current of the motor (T1-04) in the menu during
auto-tuning. If the auto-tuning operation completes successfully (T1-02 = 0), the value
entered into T1-04 will automatically write into E2-01.
L1-01 Motor Overload Protection Selection

The drive has an electronic overload protection function (oL1) based on time, output current,
and output frequency, which protects the motor from overheating. The electronic thermal
overload function is UL-recognized, so it does not require an external thermal overload relay
for single motor operation.
This parameter selects the motor overload curve used according to the type of motor applied.
Setting
0
1
2
Disable the electronic overload protection (L1-01 = "0: Disabled") and wire each motor with
its own motor thermal overload when connecting the drive to more than one motor for
simultaneous operation.
Enable the motor overload protection (L1-01 = 1 or 2) when connecting the drive to a single
motor unless there is another means of preventing motor thermal overload. The electronic
thermal overload function causes an oL1 fault, which shuts off the output of the drive and
prevents additional overheating of the motor. The motor temperature is continually
calculated as long as the drive is powered up.
Setting L1-01 = 1 selects a motor with limited cooling capability below rated (base) speed
when running at 100% load. The oL1 function derates the motor any time it is running below
base speed.
Setting L1-01 = 2 selects a motor capable of cooling itself over a 10:1 speed range when
running at 100% load. The oL1 function derates the motor when it is running at 1/10 or less
of its rated speed.
EN 34
Table 3 Overload Protection Settings
Disabled
Standard fan cooled motor (default)
Inverter duty motor with a speed range of 1:10
YASKAWA ELECTRIC TOEP C710606 27C - AC Drive J1000 - Quick Start Guide
Description