Emerson V150 Manual de instrucciones descargar pdf (Pagina 13)

Basis Weight Actuator

Figure 9. Transformer Schematic

E0014 / IL

JUMPER

over-tightened, the switch action may

not allow the switch to close after it has

been tripped.

4. Turn on power to the Stepmotor Interface.

5. Check to be sure the valve rotation indicator in the

Stepmotor Interface and in the optional remote station

show zero percent for 0 degrees of valve rotation (fully

closed) and 100 percent for 90 degrees of valve rota-

tion (fully open). Refer to the Adjustment section for

adjustment instructions.

6. Adjust the stroking speed with the adjustments on

the IC500 card faceplate (key 3, figure 4). Clockwise

rotation of the adjustment increases the speed. If the

speed increases too much, the the torque will drop off

and cause the motor to stall.

With no pressure applied to the valve, apply a signal to

operate the valve in both directions (opening and clos-

ing) and in both the manual (MAN) and computer

(COMP) operating modes. As the valve ball or disk is

rotating, adjust speed until the motor operates smooth-

ly and as quietly as possible. If the valve moves with a

jerky motion, continue to adjust the speed. Refer to the

Stroking Speed section for more information.

After the valve is in service, you can adjust the speed

again. If it appears that motor torque is too low, de-

crease stroking speed.

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Emerson V150 Manual de instrucciones Pagina 13