Honeywell ControLinks R7999C Manuel D'installation page 6

R7999C CONTROLINKS™ CONTROLLER
motor positions. The R7999C write the values for the
valve and damper positions, as a function of firing
rate, during this state.
3. Initiate State. This state exists for a minimum of ten
seconds after an internally- or externally-initiated
reset. The R7999C performs internal checks during
this state.
4. Standby State. This state occurs whenever the LCI
input (terminal 13) is not active. All actuators move to
the Programmed Standby Stop Position (PSTP) or
return to the light-off position, except for the FGR
actuator, which moves to the closed position.
5. Processing Demand State. The R7999C enters this
state when the LCI has just become active. The
R7999C makes sure the firing rate command inputs
are valid before advancing to the next state.
6. Run State. The R7999C enters this state when the LCI
input is active. The high fire or low fire command
from the burner control causes the air actuator and
the FGR actuator (if configured) to drive to the purge
or light-off positions, respectively. The selected fuel,
air and FGR actuators track the firing rate input
versus the programmed profile once the main valve
terminal is energized.
7. Lockout State. The R7999C enters this state when
critical internal faults are detected. The controller
retains the lockout state via nonvolatile memory. To
exit this state, press the reset button.
8. Alarm Initiate State. Essentially an Initiate state,
except that the alarm terminal is energized. A con-
32-00081EF—01
troller will remain in this state as long as the fault
exists. The R7999C will automatically restart once the
fault is removed. The user may restart the system by
pressing the Reset button.
Normal operating sequence for the R7999C is: Initiate (ac
power up or internal or external reset), Standby, Processing
Demand and Run. The Non-Configured State may also
occur.
An LED status panel provides visual status of the operating
condition of the R7999C and associated components (see
Fig. 3). Table 4 provides the LED condition and meaning,
and Table 5 provides the Channel Status LED condition
and meaning.
At power up, all LED will automatically turn on to verify
operation.
If all LED remain on, make sure one fuel select input is
made.
PWR ALRM
Fig. 3. LED Status Panel.
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MOTOR RESET
1 2 3 4
M16607A