Class 8839 Econoflex™ AC Drives

Factory Modifications

FACTORY MODIFICATIONS

The tables below define the factory modifications.

Control Options

Mod

Door-mounted Controls

 

 

 

Hand-Off-Auto selector switch, Speed Potentiometer

 

• Hand mode is for local control.

 

— In Bypass operation, as soon as Hand mode is

 

selected, the motor will start with a full-voltage across

 

the line start.

 

— In AFC operation, as soon as Hand mode is selected,

 

the power converter starts the motor. The manual

 

speed potentiometer is used to control the speed of the

 

drive controller.

A07

• Auto mode is for remote control.

 

— In Bypass operation, a full-voltage across-the-line start

 

will occur when the user-supplied run contact is closed.

 

— In AFC operation, the power converter starts the motor

 

when the user-supplied run contact is closed. Motor

 

speed is varied by adjusting the user-supplied auto

 

speed reference 4-20 mA signal or a 0-10 Vdc signal if

 

Mod J09 is selected.

 

• Off commands the motor to stop. Set to the off position for

 

fault reset.

 

 

 

Hand-Off-Auto selector switch, Start-Stop pushbuttons,

 

Speed Potentiometer

 

• Hand mode is for local control.

 

— In Bypass operation, when Hand mode is selected, the

 

motor will start with a full-voltage across the line start

 

when the start pushbutton is pressed.

 

— In AFC operation, when Hand mode is selected, the

 

power converter starts the motor when the start

 

pushbutton is pressed. The manual speed

 

potentiometer is used to control the speed of the drive

 

controller.

B07

• Auto mode is for remote control.

— In Bypass operation, a full-voltage across-the-line start

 

 

will occur when the user-supplied run contact is closed.

 

— In AFC operation, the power converter starts the motor

 

when the user-supplied run contact is closed. Motor

 

speed is varied by adjusting the user-supplied auto

 

speed reference 4-20 mA signal or a 0-10 Vdc signal if

 

Mod J09 is selected.

 

• Off commands the motor to stop. Set to the off position for

 

fault reset.

 

• The start pushbutton starts the motor in Hand mode.

 

• The stop pushbutton stops the motor in Hand mode. The

 

stop pushbutton is not active in the Auto mode.

 

 

188

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09/2003

Page 188
Image 188
Schneider Electric 58 TRX manual Factory Modifications, Hand-Off-Auto selector switch, Start-Stop pushbuttons, 188