background image

 272630D 

Position Feedback and 

Auxiliary Switch Accessory 

For ML6984 and ML7984 

INSTALLATION INSTRUCTIONS 

APPLICATION 

The 272630D auxiliary board is an optional 
circuit board that is used in conjunction with 
Series 4000 ML6984 and ML7984 globe valve 
actuators. This auxiliary board combines the 
function of an adjustable low voltage SPDT 
auxiliary switch with a 2-10 Vdc or 4-20 mA 
position feedback signal. It has a 4-pin keyed 
connector for communications from the mother 
circuit board. 

SPECIFICATIONS 

Feedback:  2-10 Vdc (10-2 V reverse acting) 

into minimum impedance 500 

Maximum output current is 
20 mA dc. 

Auxiliary Switch: SPDT, 24 V, 50/60Hz, 1 A 

inductive. Fixed differential 
(3% of stroke), adjustable 
operating point from 0 to 
100% of stroke.

2005.04 RJ  Printed in Canada 

Form No. 95C-10941 

Содержание 272630D

Страница 1: ...he function of an adjustable low voltage SPDT auxiliary switch with a 2 10 Vdc or 4 20 mA position feedback signal It has a 4 pin keyed connector for communications from the mother circuit board SPECIFICATIONS Feedback 2 10 Vdc 10 2 V reverse acting into minimum impedance 500 Ω Maximum output current is 20 mA dc Auxiliary Switch SPDT 24 V 50 60Hz 1 A inductive Fixed differential 3 of stroke adjust...

Страница 2: ...p the board into the fingers See Fig 1 3 Connect one end of the 4 pin connector to the main board and the other end to the auxiliary board if it is not already connected The connectors are keyed and only install one way 4 Mount the actuator onto the valve body and connect wiring 5 Reinstall cover after operational check Fingers Bridge Slots 1 Install circuit board Fig 1 Installation of auxiliary b...

Страница 3: ...see Fig 3 For reverse acting ML7984 see Fig 4 1 75V 2 5V 9 5V 10 25V FEEDBACK VOLTAGE LOWER SEAT UPPER SEAT STROKE 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 STROKE 10 25V 9 5V 2 5V 1 75V FEEDBACK VOLTAGE LOWER SEAT UPPER SEAT 28 steps 0 25V per step First and last steps are 0 75V per step Fig 4 Feedback voltag...

Страница 4: ...Automatic and Control Solutions Honeywell International Inc Honeywell Limited Honeywell Limitee 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN Scarborough Ontario 55422 M1V 4Z9 ...

Отзывы: