R7999A,B CONTROLINKS™ CONTROLLER
65-0238—10
6
actuators track the firing rate input versus the
programmed profile once the main valve terminal is
energized.
7.
Lockout State. The R7999 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 controller will
remain in this state as long as the fault exists. The R7999
will automatically restart once the fault is removed. The
user may restart the system by pressing the Reset but-
ton.
Normal operating sequence for the R7999 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 R7999 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.
Fig. 3. LED Status Panel.
Table 3. R7999A,B Maximum Wiring Lengths
a
Use wide straps or brackets to provide minimum length, maximum surface area ground conductors. If a leadwire must be used,
use 14 AWG copper wire. Make sure that all mechanically tightened joints along the ground path are free of nonconductive coat-
ings and protected against corrosion on mating surfaces.
b
Follow local and NEC 1 codes.
c
Implies no limitations beyond voltage (current times resistance) drop considerations versus wire size constraints.
d
Requires ground shield at controller end. See Fig. 2, 4.
e
Ground shield to digital ground terminal C at controller end and and PC or laptop end.
ALRM
PWR
1 2 3 4
MOTOR
RESET
M16607A
Terminal Name
Wiring Length (Maximum)
Wire Type
Minimum/Maximum
Wire Size
Ground (G)
Short as possible
a
b
b
Line Power (L1)
No Restriction
c
b
b
Power Supply Neutral L2 (N)
No Restriction
b
b
High Fire (HF)
100 Feet
b
b
Modulate (MOD)
100 Feet
b
b
Low Fire (LF)
100 Feet
b
b
Limit/Ctrl Input (LCI)
No Restriction
b
b
Limit/Ctrl Output (LCO)
No Restriction
b
b
Controller input (CmA+)
Controller input (CmA-)
1000 Feet
d
Belden 9502, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
18 to 24 AWG
Manual Ctrl (MNC)
10 Feet
d
Belden 9502, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
18 to 24 AWG
Fuel 1 Select (FS1)
No Restriction
b
b
Fuel 2 Select (FS2)
No Restriction
b
b
Actuator Interface
(A1, F1-1, F2-1, FG-1)
(A2, F1-2, F2-2, FG-2)
(CW)
(S)
(CCW)
100 Feet
d
Belden 9535, 5-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
18 to 24 AWG
Configurable Sensor (XmA+)
Configurable Sensor (XmA-)
1000 Feet
d
Belden 9535, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
18 to 24 AWG
RS485 DDL Commissioning port
10 Feet
e
18 to 24 AWG
Содержание ControLinks R7999A
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