Schneider Electric 58 TRX Assignment of Logic Outputs (R2 or LOx)

Altivar® 58 TRX AC Drives

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 comman d 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 oper ation re quires po w er to th e motor t o be rem oved

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 by pass circuit and to allow acros s-the-line oper ation 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.

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 frequen cy is equal to the hig h-speed

value.

Frequency Threshold Attained

The logic output is high (state 1, 24 Vdc nominal) if the output motor frequency is greater tha n or equal

to the configured frequency threshold. The frequency thresh old is fa ctory set at 5 0 or 6 0 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.

3 Phase

R2A

KM2

R2C

KM2 TS 120 VAC

TS = Transient suppressor

LineCont.eps

Wiring Diagram for Output Contactor

◆See Specifications section for

contactor ratings.

◆