Schneider Electric ALTIVAR 58 TRX Instalační příručka stáhnout pdf (Strana 77)

VVDED397047USR6/03 Chapter 2—Menus

06/2003 5—I/O Menu

Total resistance of the probe circuit at 20 °C = 750 Ω.

Analog Torque Limit: (Assignment on AI3 only with an I/O extension

card VW3A58201U). This function can only be accessed if an analog

input has been assigned to the torque limit. If the logic input is at 0,

the torque is limited by the setting of TLI or tL2. If the logic input is at

1, the torque is limited by the analog input assigned to this function.

The signal applied at AI3 operates in a linear fashion on the internal

torque limit (parameter TLI in the 3—Drive menu):

• If AI3 = 0 V: limit = TLI x 0 = 0

• If AI3 = 10 V: limit = TLI

Using the Controller Relay and Logic Outputs

The relay R2 on the drive controller or the logic output (LO) on an

option card can be configured as follows:

Drive Running (RUN)

The logic output is at state 1 if the drive controller is supplying current

to the motor or if a run command is generated with a zero speed

reference.

Output Contactor Command (OCC)

The Output Contactor Command function allows the drive controller

to command a contactor between the controller and the motor. The

controller closes the contactor when a run command is given. When

there is no longer any current in the motor, the controller opens the

contactor. When using an output contactor, set outphase loss (OPL)

to No.

NOTE: If the braking by DC injection function is configured, do not

exceed contactor rating, because the contactor will not open until the

end of braking.

Frequency Threshold Attained (FtA)

The logic output is at state 1 if the motor frequency is greater than or

equal to the frequency threshold set by the Ftd parameter in the

2—Adjust menu.

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Schneider Electric ALTIVAR 58 TRX Instalační příručka Strana 77