
156 UDC 6300 Process Controller Product Manual 1/03
5.6 Operating Modes, Continued
Selecting Manual or
Automatic mode
An alternate action switch places the controller in Automatic or Manual
mode of operation.
Switching between manual and automatic will be bumpless, except when
PD+MR algorithm is selected.
Table 5-9 includes procedures for selecting automatic or manual mode
and changing the output while in manual.
Table 5-9 Procedure for Selecting Automatic or Manual Mode
Step Operation Press Action
1
Selecting
Automatic
Mode
MAN
AUTO
until “AUTO” indicator is ON.
The controller regulates its output to
maintain the PV at the desired setpoint.
Upper Display
shows the PV value
Lower Display
shows SP and the
setpoint value
The deviation bargraph indicates the PV
deviation from the setpoint.
The annunciators will indicate whichever
setpoint is in use:
SP Local Setpoint
SP2 Second Local Setpoint
SP3 Third Local Setpoint
RSP Remote Setpoint
CSP Computer Setpoint
2
Selecting
Manual Mode
MAN
AUTO
until “MAN” indicator is ON.
The controller holds its output at the last
value used during automatic operation
and stops adjusting the output for
changes in setpoint or process variable.
Upper Display
shows the PV value
Lower Display
shows OUT and the
output value in (%).
The deviation bargraph indicates the PV
deviation from the setpoint.
Table 5-9 continued on next page
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