Alarm Setpoints; Three Position Step Control Algorithm; Table 4-9 Procedure For Displaying Or Changing The Alarm Setpoints; Table 4-10 Procedure For Displaying The 3Pstep Motor Position - Honeywell DC33XB User Manual

Operation

4.7 Alarm Setpoints

Procedure for Displaying the Alarm Setpoints

Table 4-9 Procedure for Displaying or Changing the Alarm Setpoints

Step Operation
1 Access the
Alarm Set
Up group
Access the
2
Alarm
Setpoint
Values
3 Return to
normal
operation

4.8 Three Position Step Control Algorithm

The Three Position Step Control algorithm (Loop 1 only) allows the control of a valve
(or other actuator) with an electric motor driven by two controller output relays; one
to move the motor upscale, the other to move it downscale, without a feedback
slidewire linked to the motor shaft. Accutune TUNE operates with this algorithm.
Displaying the Motor Position

Table 4-10 Procedure for Displaying the 3PSTEP Motor Position

Step Operation
Access the
1
displays
46
Press
SET UP until you see ALARMS in the Lower Display.
to successively display the alarm setpoints and their
FUNCTION
values.
LOOP 1/2
to change any alarm setpoint value you select in the
or
upper display.
LOWER
DISPLAY
Press
until you see the PV Value in the Upper Display and
LOWER
either POS or OUT in the Lower Display.
DISPLAY
UDC3300 Basic Model: DC33XB User Manual
Action
Action
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