Omron Q2V Series Technical Manual Download

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Parameter

Details

12.1 A: INITIALIZATION

SIEPCYEUOQ2V01A Q2V Technical Manual

439

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Notes on when Using Other Functions

Functions

Notes

Stall Prevention during Deceleration

When you connect a braking resistor to discharge the regenerative power to the drive, set

L3-04 = 0 [StallP@Decel Enable =

Disabled]

Note:

L3-04 = 1 [Enabled]

, it is possible that the drive will not stop in the set deceleration time. Do not change the default settings

of these related parameters:

•

L3-01 = 2 [StallP Mode@Accel = General Purpose]

•

L3-05 = 1 [StallP@RUN Enable = Enabled]

Auto-Tuning for Induction Motors

•

When

A1-02 = 2 [Control Method = OLVector]

, Auto-Tune the motor before you operate the drive.

•

Disconnect the drive from the motor to do Rotational Auto-Tuning.

•

Auto-Tuning runs automatically for approximately 1 minute. Do not do Auto-Tuning with the motor engaged in the elevator
system.

Note:

•

If you cannot disconnect the motor from the machine, do Stationary Auto-Tuning. During this time, the drive automatically
measures the necessary motor data. If the motor test report or the motor nameplate is not available, use Stationary Auto-Tuning.
Do Stationary Auto-Tuning for Line-to-Line Resistance for better torque characteristics at low speeds in the V/f Control mode.

•

When you do Stationary Auto-Tuning, the drive energizes the motor and the motor stays stopped.

•

To Auto-Tune a specialized motor, for example a wound motor, prepare a motor test report before Auto-Tuning and make sure
that the motor parameter

E2-xx

is not too different than the value in the test report.

Auto-Tuning for PM Motors

You must set the motor data in the drive to run a PM motor.

•

When you use a Yaskawa PM motor
Input the motor code in

E5-01

and other related motor parameters will be automatically set to the optimal values.

•

When you use a non-Yaskawa PM motor
Do Auto-Tuning.

–

When the motor nameplate or motor test report is available, enter the PM motor parameters directly with PM Motor Parameter
Settings.

–

If the motor nameplate or motor test report is not available, and the motor cannot rotate, do PM Stationary Auto-Tuning.

–

If the motor nameplate or motor test report is not available, and the motor can rotate, do PM Rotational Auto-Tuning.

Braking Resistor Overheat Protection

When you use a braking resistor that is not the optional Yaskawa braking resistor unit (LKEB-series), this function uses the thermal
overload relay to detect braking resistor overheat. Load a sequence program that turns OFF the drive input power supply when the
braking resistor overheats.

Note:

Refer to

when you load the sequence circuit.

Continuous Operation

Do not use the momentary power loss continuous operation function and the Auto Restart function. If you use these functions, there
is a risk that the motor will coast to a stop if the brake is open when there is a momentary power loss and the drive is operating or if
there is a fault.

Set the these parameters:

•

L2-01 = 0 [RideThru@PwrLoss = Disabled]

•

L5-01 = 0 [Auto-Reset Attempts = 0]

Torque Limit

The motor rated torque sets the value for

L7-01 to L7-04 [FW Torque Limit to RV Reg. TrqLimit]

. If there will not be sufficient

torque during start up, replace the drive with a larger capacity drive and set the torque limit between 200% and 300%. The

L7-01 to

L7-04

default setting is 200%.

Input/Output Phase Loss Protection,
Overtorque Detection

To stop a fall because of phase loss, set these parameters:

•

L8-05 = 1 [In PhaseLoss Selection = Enabled]

•

L8-07 = 1 [Out PhaseLoss Selection = 1PH Loss Det]

•

L6-01, L6-04 = 1 to 8 [Torque Detection Selection 1/2 = oL @ Speed Agree - Alarm only to UL @ RUN - Fault]

•

L6-02, L6-05 [Trq Det1 Level, Trq Det2 Level]

•

L6-03, L6-06 [Trq Det1 Time, Trq Det2 Time]

Note:

Use precautions, for example fall detection, on the machine side.

External Baseblock Command

•

If you enter the external baseblock signal set in

H1-01 to H1-07 = 8 or 9 [DI1 Function Selection to DI7 Function Selection =

Baseblock Command]

during run, the motor immediately coasts to stop. When you enter a baseblock command while the motor is

operating, make sure that it is necessary.

•

When you use an external baseblock command for the fast stop and operation start up interlocks, load the sequence to lock the
holding brake when you enter the external baseblock command.

•

If you enter the external baseblock command and then immediately remove it, the drive will not output the voltage in the time set
in

L2-03 [Min Baseblck Time]

. Do not use an external baseblock command for applications that have frequent Run/Stop

commands.

Acceleration and Deceleration Times

If you set the acceleration and deceleration times for the drive side too short and you do not add the mechanical operation delay time
of the holding brake, the holding brake could operate late, or there could be overcurrent at start up, the brake could grind, or the
motor could roll back when it stops. In these conditions, use Dwell Reference at Start/Time and DC Injection Braking at Stop to
adjust the holding brake timing.

Electromagnetic Contactor on the Drive
Output Side

Usually you must not install the electromagnetic contactor between the drive and motor. When you must install an electromagnetic
contactor to use one drive to switchover more than one motor, follow these precautions:

•

Load a sequence that opens and closes the electromagnetic contactor when these two conditions are satisfied at the same time,
unless there is an emergency:

–

The holding brake is fully closed

–

The drive terminals set for

H2-xx = 8 or 1B [MFDO Function Select = During Baseblock]

are activated

•

If you open and close the electromagnetic contactor during motor control or during DC Injection Braking (or zero speed control),
the surge voltage and the motor direct input current can cause the drive to detect faults.

•

When you use an electromagnetic contactor between the drive and motor, set

L8-07 = 1 or 2 [Out PhaseLoss Selection = 1PH

Loss Det, or 2/3PH Loss Det]