Honeywell 272630D ユーザーズマニュアル

The 272630D provides: 
1.  A 2-10 Vdc voltage proportional to the valve 

stem position. This output is capable of 
sourcing up to 20 mA dc drive current. 

2. An isolated "Form C" relay contact closure 

that energizes when the valve is open more 
than the setting of the trimmer potentiometer 
("trim pot"). 

Position feedback voltage mirrors the control 
signal. For ML6984 and direct acting ML7984 
operation, see Fig. 3. For reverse acting 
ML7984, see Fig. 4. 

1.75V 

2.5V 

9.5V 

10.25V 

28 steps @ 
0.25V per step 

First and last steps 
are @ 0.75V per step 

Fig. 3 - Feedback voltage reponse for  

ML6984 and direct acting ML7984  

10.25V

9.5V

2.5V

1.75V 

28 steps @ 
0.25V per step 

First and last steps 
are @ 0.75V per step 

Fig. 4 - Feedback voltage response for 

reverse acting ML7984 

Auxiliary Switch Setup 
1. Drive actuator to desired position. 
2.  Adjust trimmer potentiometer ("trim pot") until 

relay is energized. (On-board LED will light). 

3