Installation manual

Series C Controller Configuration and Operation Manual
2-10  Athena Controls, Inc. 900M050U00
2.4.2 Displaying and Changing the Setpoint
The setpoint can be changed only when the controller is in normal (automatic) mode or
standby mode. (If the PV is alternating with StbYStbY (standby), you can change the
setpoint, but the change will not take effect until you put the controller back into normal
mode.)
To view the current setpoint, if it is not on display because setpoint display
blanking is enabled:
Press any key briefly. The setpoint will be displayed on the lower line.
To change the setpoint:
Use the and keys to change the displayed value.
See 1.6 for the possible sources of the setpoint being displayed by the controller (the
“active setpoint”).
See 5.6.2 (temperature input) or 5.7.3 (linear input) for information about the SP.LLSP.LL and
SP.HLSP.HL parameters used to configure the range of setpoints that can be entered using the
front panel.
2.4.3 Putting Controller in Standby Mode
To put the controller in standby mode:
1. Press the key until CtrLCtrL is displayed on the top line (after approximately three
seconds) and the current mode on the lower line. (All modes are described in 1.3.1.)
For example, if the controller is in normal (automatic) mode, pressing the key for
approximately three seconds will display:
CtrLCtrL
nornor
2. Press the or key to cycle through the modes until StbYStbY is on the lower
line. The display will show:
CtrLCtrL
StbYStbY
3. Press the key again (briefly). The display will show StbYStbY alternating with the
process value on the top line, and the setpoint displayed steadily on the lower line.
For example, if the PV is 105 and the SV is 110 you will see:
StbYStbY alternating 105105
110110 with 110110