Split Range; Master/Slave Arrangement; Table 5 Split Range Set Up Procedure - Honeywell 2000 Series Installation, Operation And Maintenance Manual

Burner Control/Flame Safety

Split Range

Split Range
The HercuLine
4 to 12mA input) in certain applications. The procedure in Table 5 describes how to set up an actuator
to operate as part of a split valve configuration.
Step
To Set Actuator span to operate from 4 to 12 mA input.
Enter Set Up mode by pressing SET UP key
1
Select SET INPUT group
2
Press FUNCTION key until INP HI (on lower display) is selected.
3
Set INP HI value to 50.0
4
Press FUNCTION key to select INP LO and set value to 0.0
5
Press DISPLAY key to exit Set Up mode.
6
To Set Actuator span to operate from 12 to 20 mA input.
Enter Set Up mode by pressing SET UP key
1
Select SET INPUT group
2
Press FUNCTION key until INP HI (on lower display) is selected.
3
Set INP HI value to 100.0
4
Press FUNCTION key to select INP LO and set value to 50.0
5
Press DISPLAY key to exit Set Up mode.
6
ATTENTION
Be sure to review failsafe strategy for your process application.

Master/Slave Arrangement

Introduction
With the motor positioner, the controlling signal for the actuator is a 4 to 20mA from a current output
controller as shown in the flow diagram in Figure 16.
Unlike the position output controller, the current output controller must produce a continuous analog
signal or the actuator will revert to one of its failsafe states. Signal failure is not a problem since the
available failsafe settings allow you to set the actuator position on signal loss.
26 HercuLine™ 2000 Series Actuator - Installation, Operation and Maintenance Manual
®
2001/2002 actuators can be set up to operate within a narrow input range (for example,

Table 5 Split Range Set Up Procedure

Action
Revision 6
7/07