Advertisement
R7999A,B CONTROLINKS™ CONTROLLER
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.
Terminal Name
Ground (G)
Line Power (L1)
Power Supply Neutral L2 (N)
High Fire (HF)
Modulate (MOD)
Low Fire (LF)
Limit/Ctrl Input (LCI)
Limit/Ctrl Output (LCO)
Controller input (CmA+)
Controller input (CmA-)
Manual Ctrl (MNC)
Fuel 1 Select (FS1)
Fuel 2 Select (FS2)
Actuator Interface
(A1, F1-1, F2-1, FG-1)
(A2, F1-2, F2-2, FG-2)
(CW)
(S)
(CCW)
Configurable Sensor (XmA+)
Configurable Sensor (XmA-)
RS485 DDL Commissioning port
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.
65-0238—10
Table 3. R7999A,B Maximum Wiring Lengths
Wiring Length (Maximum)
a
Short as possible
c
No Restriction
No Restriction
100 Feet
100 Feet
100 Feet
No Restriction
No Restriction
d
1000 Feet
d
10 Feet
No Restriction
No Restriction
d
100 Feet
d
1000 Feet
e
10 Feet
6
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.
PWR
ALRM
Fig. 3. LED Status Panel.
Wire Type
b
b
b
b
b
b
b
b
Belden 9502, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
Belden 9502, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
b
b
Belden 9535, 5-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
Belden 9535, 2-conductor, 100%
shield coverage, 300V 80C (UL
2464, CSA PCC FT 4) or equivalent.
MOTOR
RESET
1
2
3
4
M16607A
Minimum/Maximum
Wire Size
b
b
b
b
b
b
b
b
18 to 24 AWG
18 to 24 AWG
b
b
18 to 24 AWG
18 to 24 AWG
18 to 24 AWG
Advertisement
