Honeywell DR4500A Product Manual page 109

Lower Display
Prompt Range of Setting or Selection
REM SW
REM SW2
NONE
TO MAN
TO LSP
TO 2SP
TO DIR
RN/HLD
TUNE
TIMER
MAN KEY
ENABLE
DISABL
PB or GAIN
PB PCT
GAIN
(must be used with settings of
TIME D (TIME DUPLEX) or TI
CUR (TIME CURRENT)
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
April 2017
Upper Display
Configuration Parameter Definitions
Control Parameters Set Up Group
Parameter Definition
REMOTE SWITCHING (DIGITAL INPUT) — contact
closure enables one of the following:
NO DIGITAL INPUT SELECTION
TO MANUAL — contact closure selects Manual mode.
TO LOCAL SETPOINT — contact closure selects the
local setpoint.
TO LOCAL SETPOINT 2 — contact closure selects
local setpoint 2.
TO DIRECT ACTION — contact closure selects Direct
Control Action.
RUN/HOLD — contact closure suspends setpoint
Ramp/Program. Contact open resumes.
AUTOTUNE — contact closure initiates Autotune.
TIMER — starts the timer, if enabled.
The Timer can also be started by the RH KEY or
ALARM2. These parameters are found under the Timer
set up group.
MANUAL MODE KEY SELECTION — make selection
to enable or disable the Manual Mode selection through
the MAN/AUTO key.
ENABLE — allows you to use the MAN/AUTO key to
select Manual Mode.
DISABLE — disables the MAN/AUTO key.
PROPORTIONAL BAND UNITS — select one of the
following for the Proportional (P) term of the PID
algorithm:
 PROPORTIONAL BAND — selects units of percent
proportional band for the P term of the PID algorithm,
where:
PB% = 100%FS
GAIN

GAIN selects the unitless term of gain for the P term
of the PID algorithm, where:
GAIN =100%FS
PB%
95