5/16 CC1B-Hints-en Preliminary 04.02.2003 HVAC Products
2. Hints
2.4 How to change a setpoint
(SP1, SP2, or dSP)
RWF40 user manual Section 6.2
Shown at the right is the basic display.
The current configuration of your specific
controller will determine which levels you will be
allowed to access.
C112 must be xxx2, xxx1, or xxx0 to ac cess th e
parameter level.
The C112 locking code can only be adjusted by the manufacturer.
From the basic display, you may skip the
user level, to reach the parameter level.
Press and hold, for 3 seconds,
and release.
The actual valu e display, (0)
shows the current parameter value.
The setpoint display, ( AL)
shows the param eter item you are ad justing.
Parameter level items summary:
* items ar e only displayed when
controller is configured for 3-pos output.
Example Adjust the value for parameter AL.
If no keys are pressed for 30 seconds, at anytime, the controller will
automatically return to the basic display.
The current value of AL, (0)
is shown in t he actual value d isplay.
The current parameter item (AL)
is shown in the setpoint display.
The display is steady, (nothing is flashing)
and the value for AL can now be adjusted.
You can You can
decrease increase
the value the value
by pressing by pressing
and and
releasing it. releasing it.
You can Or, you can
accept the advance to
change by the next
waiting 2 parameter
seconds. by pressing
once
The red and releasing it.
LED’s will
blink once, HYSt can be
and become adjus ted the
the new s ame way you
value. just did AL
Your options at t his point ar e:
Press and release, to immediately return to the basic display.
Press and release it,
to advance down to Pb.1, (the next parameter).
… after the last parameter item P,
press and release it,
to advance down to SP1, (the 1st user item).
… after the las t user item ,
the menu cycles back to the 1st user item.
Or simply wait 30 seconds and the controller will automatically return to
the basic display.
AL Alarm Limit value for c omparator
HYSt Switching diff erential, Hysteresis f or limit com parator
Pb.1 Proportional band 1
dt derivative time
rt Integral action time
db * dead band, contact spacing
tt * Actuator running time
HYS1 Switch-on threshold, HYSteresis 1, 2-stage burner
HYS2 Switch-off threshold, HYSteresis 2, 2-stage burner
HYS3 Switch-off threshold, HYSteresis 3, upper
q Response threshold
H Heating curve sl ope
P Parallel displacement