Motor Protection: L1-01 And L1-02 - YASKAWA V1000 Series Technical Manual

Using H4-01 to Display Monitor Contents
1. Turn on the power to the drive. The initial display appears.
2.
Press until the Parameter setting menu is displayed.
3.
Press to enter the Parameter setting menu.
4.
Press and to select H4-01.
5.
Press to display the value currently set to H4-01.
6.
Press and to set the output current (103).
7.
Save the setting by pressing
8. The display automatically returns to the parameter setting menu.
9.
Press the key until back at the Top Screen.
Adjusting the Analog Output Terminal Voltage with H4-02 and H4-03
Note: This example continues from Step 3 in the previous example.
1.
Select H4-02 or H4-03 by pressing the
Press the key while the drive is stopped and the following voltage is output for adjustment: output voltage
2.
= (10 V x Output Gain (H4-02) + Output Bias (H4-03). Using this output, adjust output gain (H4-02) and output bias
(H4-03).
u

Motor Protection: L1-01 and L1-02

This section explains how to set motor overload protection.
Electronic Thermal Motor Protection
n
The drive has built-in electronic thermal overload protection to detect overload conditions. This protection meets standards set by UL and cUL for motor
thermal overload protection. The protective feature is activated when the output current rises above the motor rated current for a specified time. This speed
sensitive protective feature interrupts the motor current to protect the motor wiring and windings in the event of overload, eliminating the need for an
external overload device. When multiple motors are used with a single drive, separate overload devices are required to properly protect the individual
motor branches.
Related Parameters
No. Parameter Name
Sets the motor nameplate full load current in amperes (A). This set value becomes
E2-01 Motor Rated Current the reference value for motor protection, torque limit, and torque control. This
value is automatically set during Auto-Tuning.
Sets the motor 2 name plate full load current in amperes (A). This set value
Motor 2 Rated
E4-01 becomes the reference value for motor protection, torque limit, and torque
Current
control. This value is automatically set during Auto-Tuning.
Enables or disables motor thermal overload protection (OL1)
0: Disabled
Motor Overload 1: Protection for general purpose motor
L1-01
Protection Selection 2: Protection for inverter motor
3: Protection for vector motor
4: Protection for PM variable torque motor
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
Step
.
Step
and keys.
Output Voltage
10
Gain × V
100
(%)
10 V
0 V
0%
Figure 4.26 Adjusting the Monitor Output
Description
10
Bias × V
100
(%)
Monitor
Contents
100%
Setting Range
10 to 200% of drive rated current
Less than 11 kW: 2 digits below the decimal
point, 11 kW or more: 1 digit below the
decimal point.
10 to 200% of drive rated current
Use L1-13 (Continuous Electrothermal Operation Selection) to select whether
electronic thermal value is "held" or "not held" when the power supply is
turned off.
When connecting several motors to one drive, set "0" (disabled) and install a
thermal relay on each motor.
4.6 Basic Drive Setup Adjustments
Display/Result
Display/Result
Default Setting
Determined by o2-04 and
C6-01
Determined by o2-04 and
C6-01
0 to 4 1
4
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