R7999C CONTROLINKS™ CONTROLLER
5
32-00081EF—01
Table 2. R7999C Output Terminal Description.
a
HFP and LFP are not fail-safe outputs. Authorities having jurisdiction may require additional contacts on the air damper
to prove HFP and LFP.
OPERATION
The R7999C ControLinks™ Controller provides
communication capabilities similar to those found in the
7800 SERIES equipment. Fault annunciation is available
through a connection to the communication data output
(DDL). Operating history is kept in nonvolatile memory as
is the current lockout status.
The ZM7999 ControLinks™ Commissioning Software tool
or S7999B Display is necessary for the field
commissioning prior to operation. Refer to the
configuration software help screens for commissioning
procedures.
The R7999C ControLinks™ Controller tracks the firing rate
input value and drives the ML7999C Actuators according
to the commissioned profile and maintains the relative
programmed positions.
WARNING
Explosion Hazard.
Improper configuration can cause fuel buildup
and explosion.
The ZM7999 ControLinks™ Commissioning Software
is to be used only by experienced and/or licensed
burner-boiler operators and mechanics.
Operators of this software may move fuel and/or air
actuators to positions that can create hazardous burner
conditions. Improper user operation can result in prop-
erty loss, physical injury or death.
The R7999C must go through an Initiate state whenever
the fuel select switch is changed.
The R7999C has the following operating states:
1.
Non-Configured State. The controller is shipped from
the factory in this condition and will not respond to
any input other than the DDL port (configuration tool
port).
2.
Commissioning State. The controller enters this state
once communications with a configuration tool is
established. Actuators are placed in pseudo-manual
control mode during this state. Commands from the
configuration software increment or decrement
Name (Abbreviation)
Terminal
Number
Description
Alarm (ALR)
7
Alarm Output.
High Fire (HFP)
a
8
High Fire Proved normally open contact is activated when the HF input terminal has been
energized and the R7999C has successfully moved the air/fuel damper (and FGR, if so
configured) to the programmed Purge Position.
Low Fire (LFP)
a
9
Low Fire Proved normally open contact is activated when the LF input terminal has been
energized and the R7999C has successfully moved the Air, selected fuel, and FGR damper
to the programmed Light-Off Position.
Limit/Ctrl OUT (LCO)
14
Line voltage output that signals limits are satisfied and that a demand exists to run the
burner and R7999C is operational. Provides power to energize Burner Control.
A-1
15
A-1: Output when combined with A-2 is used to modulate the Air damper. The resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
A-2
16
A-2: Output when combined with A-1 is used to modulate the Air damper. The resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
F1-1
20
F1-1: Output when combined with F1-2 is used to modulate the Fuel 1 valve. The
resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
F1-2
21
F1-2: Output when combined with F1-1 is used to modulate the Fuel 1 valve. The
resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
F2-1
25
F2-1: Output when combined with F2-2 is used to modulate the Fuel 2 valve. The
resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
F2-2
26
F2-2: Output when combined with F2-1 is used to modulate the Fuel 2 valve. The
resultant
push-pull current flow of the two outputs causes the motor to advance, reverse, or hold.
FG-1
30
FG-1: Output when combined with FG-2 is used to modulate the FGR damper. The
resultant push-pull current flow of the two outputs causes the motor to advance, reverse,
or hold.
FG-2
31
FG-2: Output when combined with FG-1 is used to modulate the FGR damper. The
resultant push-pull current flow of the two outputs causes the motor to advance, reverse,
or hold.
