
166 UDC 6300 Process Controller Product Manual 1/03
5.9 Single Setpoint Ramp
Configuring the
setpoint ramp
You can configure a single setpoint ramp to occur between the current
local setpoint and a final local setpoint over a time interval of from 1 to
255 minutes. You can RUN or HOLD the ramp at any time.
Power Ouage
If power is lost during a SP Ramp, on power-up the controller ‘s PV will
equal the setpoint and the ramp time will be recalculated. The mode and
setpoint will be as configured in Set-up group ‘CONTROL”. Function
prompt “PWR MODE”.
Procedure
Table 5-17 lists the procedure for configuring the SP Ramp parameters.
Table 5-17 Procedure for Configuring a Setpoint Ramp
Step Operation Press Action
1
Select
SP RAMP
Set Up Group
SET
UP
Until you see:
SP RAMP
Lower Display
SET UP
Upper Display
2
Select the
Setpoint Ramp
function
FUNC
L1/L2
Until you see:
SP RAMP
Lower Display
Upper Display
Enable
Enable 2
Enable 12
–SP Ramp for Loop 1
–SP Ramp for Loop 2
–SP Ramp for
Loops 1 and 2
3
Enable Setpoint
Ramp
to enable the setpoint ramp function. Choose
the Loop(s) on which you want the ramp to
operate.
NOTE: You cannot change the current local
setpoint if the setpoint ramp function is
enabled. Make sure SP RATE is disabled.
4
Set the Ramp
Time
FUNC
L1/L2
Until you see:
Lower Display
Upper Display
TIME MIN
The ramp time
in minutes
or
to change the upper display value to the
number of minutes in which you want the
final setpoint to be reached.
Setting Range = 1 to 255 minutes
NOTE: Entering “0” will imply an immediate
step change to the final SP.
5
Set the Final
Setpoint value
FUNC
L1/L2
Lower Display
Upper Display
FINAL SP
The Final
Setpoint value
6
or
to change the upper display value to the
desired final setpoint value.
Setting Range = within the setpoint limits
Continued on next page
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