Installation manual

User Interface
900M050U00  Athena Controls, Inc. 2-11
2.4.4 Returning Controller to Normal Operation
1. Press the key until CtrLCtrL is displayed on the top line and the current mode’s
abbreviation is on the lower line. For example, if the controller is in standby the
display will show:
CtrLCtrL
StbYStbY
2. Press the or key to cycle through the modes until nornor is on the lower line.
The display will show:
CtrLCtrL
nornor
3. Press the key again (briefly). The display will show the process value on the top
line and the setpoint on the lower line. For example, if the PV is 105 and the SV is
110 you will see:
105105
110110
2.4.5 Putting Controller into Manual Mode and Changing the Output Values
To put the controller in manual mode:
1. Press the key until CtrLCtrL is displayed on the top line 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 FOPFOP (fixed output
percentage) is on the lower line. The display will show:
CtrLCtrL
FOPFOP
3. Press the key again (briefly). The display will show the process variable on the
top line. On the lower line Pct1Pct1 (percent 1) will alternate with the current fixed output
percent. When you switch the controller to manual, the most recent output
percentages used in normal (auto) mode will continue to be used. This provides
“bumpless” transfer.
For example, if the PV is 105 and output 1 was most recently at 50% in normal mode,
you would see:
105 105 alternating 105105
Pct1Pct1 with 5050
4. Use the and keys to change the manual output 1 value displayed to the
desired percentage.