Honeywell Q7230A Benutzerhandbuch

63-2235—05

4

Q7230 Adjustments (Fig. 4 and Table 3)

The Q7230A provides adjustable range (zero and span) for 

two-wire current or voltage control. Separate potentiometers 

are provided on the circuit module for adjusting the zero point 

and the span. It includes a cw/ccw switch for configuring the 

motor to rotate clockwise or counterclockwise with an 

increase in control signal.

1. Verify that the zero potentiometer is fully clockwise and 

that the span potentiometer is fully counterclockwise.

2. Select desired rotation direction [cw (electrically nor-

mally closed) is the most common]. The following direc-

tions apply for the clockwise setting. For 

counterclockwise setting, reverse open and closed, and 

reverse clockwise and counterclockwise. Remove film 

on switch before use.

3. See Fig. 6 and 7 for typical system wiring.

4. For current control, connect the current input signal to I+ 

(screw terminal 3) and COM (screw terminal 5). For 

voltage control, connect the voltage input signal to V+ 

(screw terminal 1) and COM (screw terminal 5).

5. Set the controller to output the signal required to drive 

the motor to the closed position. Wait for the motor to 

stop driving closed.

6. Turn the zero potentiometer slowly counterclockwise 

 until the motor starts to open.

7. Turn the zero potentiometer slowly clockwise

 

until the motor is fully closed. This is defined as the zero 

setting.

8. Set the controller to output the signal required to drive 

the motor to the fully open position. Wait for the motor to 

stop driving open.

9. Turn the span potentiometer slowly clockwise

 

until the motor starts to drive closed. The difference 

between the fully open position signal and the fully 

closed position signal is defined as the operating span.

10. Recheck the fully closed position and readjust the zero 

potentiometer, if necessary. (Turn the zero potentiome-

ter clockwise

 to close the motor and counter-

clockwise

 to open the motor.)

1. Open terminal C or R.

Motor runs closed (fully ccw).

Motor runs open (fully cw).

2. Jumper terminals C and F.

Motor runs fully open (fully cw).

Motor runs fully closed (fully ccw).

3. Remove either T terminal or disconnect 

power supply.

Spring return motors return to normal spring position (fully ccw

 for 

mechanically normally closed motors; fully cw

 for mechanically normally 

open motors).

M27213

T1 T2 F

Com

V+

CCW

CW

ZERO

SPAN

1+