
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 Ω. 
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