Introduction; Product Description; Applications; Features - Honeywell HercuLine 10260A Installation, Operation And Maintenance Manual

1.1 Product Description

Honeywell's 10260A industrially rated rotary control actuators are precision engineered for exceptional
reliability, accurate positioning, and low maintenance. Designed for very precise positioning of dampers
and quarter turn valves in the power an processing industries, the 10260A performs especially well in
extremely demanding environments requiring continuous-duty, high reliability, and low maintenance.
Precise positioning of the actuator is achieved through state-of-the-art motor control and positioning
electronics. The motor starts and stops instantaneously, preventing overshoot and hunting. Positioning
repeatabililty of 0.2 % span or better is achievable for extremely tight process control to take full advantage
of modern controllers.
A no-burnout synchronous induction motor is combined with a heavy-duty precision machined output
worm gear mesh providing a responsive, low maintenance, and non-backdriving actuator. Accidental stalls
up to 100 hours can be withstood without damage to the gear train. End-of-travel limit switches are
provided as standard to prevent damage to the valve or damper and are backed up by Mechanical stops.
Honeywell electric actuators provide instantaneous response to a demand signal, eliminating system non-
linearity due to dead time. Additionally, since the actuator is electric, the costs associated with providing
and maintaining a clean, dry air supply are eliminated.
A Heavy duty cast crank arm and precision rod-end bearing is provided with each 10260A actuator. Crank
arms can be positioned at any angle on the output shaft and an adjustable radius is provided to allow
flexibility in linkage set-up.
All 10260A actuators are equipped with a manual handwheel for operation during loss of power or
installation. A local auto/manual handswitch can be provided for local operation and has an "out of auto"
contact to annunciate that condition.

1.2 Applications

Honeywell actuators have a long and respected history in the industrial actuator market. 10260A actuators
are designed for precision modulation of final control devices such as dampers, vanes, fluid couplings,
scoop tubes, fuel/air ratio valves, windbox dampers, and coal mill dampers, and quarter turn valves. The
robustness of the design serves as the basis for long-term reliability and reduced operating costs.

1.3 Features

1.3.1 Non-contact Position Sensing (NCS) with True Shaft Position Indication

Introduction

Non-contact position sensing eliminates maintenance problems and nuisance shutdowns that are common
with slidewire position sensing. The non-contact position sensor replaces the slidewire and wiper assembly
for position sensing. Once calibrated, the non-contacting position sensor requires no maintenance.
Description
The non-contact position sensing assembly consists of a position sensor, an output board, and a bracket as
shown in Figure 1-2. The position sensor "spoiler" is connected directly to the output shaft, reflecting true
shaft position. As the output shaft rotates, the sensor "spoiler" rotates and the sensing circuit board detects
2/03 10260A Series Actuators – Installation, Operations, and Maintenance
1. Introduction
Introduction
1