Honeywell 11280s User Manual

Page of 14
 
Sensing and Control, 11 West Spring Street, Freeport, Illinois 61032 
Printed in U.S.A.  ©  Copyright 2000—Honeywell
 
Herculine
 11280S  
Smart Actuator 
 
61-86-03-13
9/01 
Page 1 of 14
Specification
 
 
Figure 1 Herculine 11280S Smart Actuator 
Overview
 
Honeywell’s HercuLine
 11280S Smart 
actuators incorporate all of the high 
quality and reliable features of the 
traditional HercuLine
 actuators plus 
the added benefits of a microprocessor-
based Enhanced Electronics Unit (EEU).  
These additional benefits provide:  
• 
• 
• 
Faster set-up and commissioning 
Network capability 
Health parameter monitoring for 
proactive maintenance planning.   
HercuLine 11280S Smart actuators 
enable operation at maximum process 
efficiency, minimal downtime, and 
access to all actuator parameters for 
real-time business decisions. 
Honeywell’s 11280S actuators are 
industrial rated and engineered for very 
precise positioning of dampers and 
valves.  The HercuLine 11280S 
performs especially well in extremely 
demanding environments requiring 
continuous duty, high reliability, and low 
maintenance.  Typical applications are 
ID/FD fan dampers, furnace pressure 
dampers, coal mill dampers, burner tilts 
and more. 
Actuator Operation 
Microprocessor-based electronics 
continually monitor the performance, 
health, and position of the actuator for 
repeatable positioning and response to 
demand signal.   
A double reduction worm gear set 
combines with a variable speed motor 
controller (inverter) that is continuous 
duty rated for accurate and repeatable 
positioning of final control elements.   
The worm gear set combination also 
functions as a brake, capable of holding 
greater than two times the output torque 
in a back-driving condition.
 
 
Control options are available to 
interface with a modulating 4-20 mA 
input signal and 4-20 mA customer 
feedback or remote setpoint through 
Modbus.  Internal balance, customer 
feedback and patented slidewire 
emulation is provided by a non-
contacting position sensor. 
Features 
Performance 
 
• 
Accurate Positioning – 
Motor/gear train provides accurate 
positioning with almost 
instantaneous start/stop 
characteristics. 
• 
Non-Contact Position Sensing 
Non-contacting sensing lowers 
maintenance costs and improves 
performance. 
• 
Duty Cycle – Continuous duty 
rated motor.   
 
• 
Full Travel Speed – Full stroke 
travel speeds as fast as 10 
seconds.   
• 
Torque – High torque capability in 
small package (425 – 5,500 lb-ft). 
• 
High Accuracy – Typically 0.25 %  
of 90
° span.  
• 
High Repeatability - Typically  
0.2 % of 90
° span. 
• 
Characterization – Linear, square 
root or programmable user-
configured 21-point 
characterization allows tailoring of 
control for specific applications. 
• 
Input Filter Setting – Four 
programmable combinations of 
input filter settings are provided to 
accommodate various customers 
needs.  The combinations are 
none, spike, low pass, or spike + 
low pass filter. 
• 
Deadband – Deadband is 
programmable between 0.2 % to  
5 % of 90
° span.