Schneider Electric 58 TRX manual Assignment of Logic Outputs R2 or LOx, Drive Running

Altivar® 58 TRX AC Drives

Assignment of Logic Outputs (R2 or LOx)

ASSIGNMENT OF LOGIC OUTPUTS (R2 OR LOx)

The following is a description of the possible assignments of the Logic Outputs (R2 or LOx) on the ATV58 TRX drive controller and the optional I/O Extension Cards.

Drive Running

The logic output is high (state 1, 24 Vdc nominal) if the motor is drawing current, or if a run command is generated with a zero speed reference.

Output Contactor Control

The Output Contactor Control function enables the ATV58 TRX drive controller to control a contactor located between the drive and the motor. The request to close the contactor is made when the Run signal is given. The request to open the contactor is made when the Run signal is removed and the deceleration ramp is completed.

The function is for use in applications where an air gap opening in the motor circuit is required. The connection method illustrated in the diagram below is required.

This function may also be used:

•For applications involving machines where the operation requires power to the motor to be removed when there is a stop to prevent any possibility of an untimely restart (for example, a materials handling carousel where items are put down and then picked up manually).

•To implement a drive controller bypass circuit and to allow across-the-line operation of the motor. The contactor on the drive controller is open in bypass mode to prevent applying line side power to the output of the drive controller.

U V W

KM2

U1 V1 W1

M

3 Phase

R2A	R2C	◆	LineCont.eps
KM2 TS			120 VAC

TS = Transient suppressor

◆See Specifications section for contactor ratings.

Wiring Diagram for Output Contactor

Reference Frequency Attained (Speed Attained)

The logic output is high (state 1, 24 Vdc nominal) if the output motor frequency is equal to the speed reference value.

High Speed Attained

The logic output is high (state 1, 24 Vdc nominal) if the output motor frequency is equal to the high-speed value.

Frequency Threshold Attained

The logic output is high (state 1, 24 Vdc nominal) if the output motor frequency is greater than or equal to the configured frequency threshold. The frequency threshold is factory set at 50 or 60 Hz (depending on the position of the 50/60 Hz switch) and has an adjustable range of low speed to high speed. Two different levels can be configured to correspond to two logic output assignments.

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