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R7999A,B CONTROLINKS™ CONTROLLER
Fault/
Blink
Code
41
Feedback potentiometer Interface circuit fault—Air.
42
Feedback potentiometer Interface circuit fault—Fuel 1.
43
Feedback potentiometer Interface circuit fault—Fuel 2.
44
Feedback potentiometer Interface circuit fault—FGR.
45
Feedback potentiometer wiper resistance problem—Air.
46
Feedback potentiometer wiper resistance problem—Fuel 1.
47
Feedback potentiometer wiper resistance problem—Fuel 2.
48
Feedback potentiometer wiper resistance problem—FGR.
49
Feedback potentiometer total resistance problem—Air.
51
Feedback potentiometer total resistance problem—Fuel 1.
52
Feedback potentiometer total resistance problem—Fuel 2.
53
Feedback potentiometer total resistance problem—FGR.
54
Internal memory function problem—Air.
55
Internal memory function problem—Fuel 1.
56
Internal memory function problem—Fuel 2.
57
Internal memory function problem—FGR.
58
Stuck Reset button.
61
Actuator(s) not reaching lightoff point.
65
Internal memory fault.
66
Internal Initialization Error. A2D error, 4-20ma (terminal 39-40) is being
overdriven.
67
Fuel actuator off curve (selected fuel type). Actuator did not go to its
commanded position.
68
FGR actuator off curve.
69
Air actuator off curve. Actuator did not go to its commanded position. Check for stuck air actuator and/or proper shielding on actuator interface.
71
Verifies that the Air actuator accepted the offline, online, move counter-
clock-wise and move clock-wise commands. Furthermore, all
potentiometer tests must be successfully passed to bring an actuator
online.
72
Verifies that the Fuel 1 actuator accepted the offline, online, move
counter-clock-wise and move clock-wise commands. Furthermore, all
potentiometer tests must be successfully passed to bring an actuator
online.
73
Verifies that the Fuel 2 actuator accepted the offline, online, move
counter-clock-wise and move clock-wise commands. Furthermore, all
potentiometer tests must be successfully passed to bring an actuator
online.
74
Verifies that the FGR actuator accepted the offline, online, move counter-
clock-wise and move clock-wise commands. Furthermore, all
potentiometer tests must be successfully passed to bring an actuator
online.
75
Internal memory fault (Microprocessor test failed).
76
Internal checksum error (Microprocessor test failed).
82
Actuator secondary fault (actuator secondary fault - check footnote a). Check actuator wiring. See Channel LED for actuator.
83
Air actuator nonresponsive.
84
Fuel 1 actuator nonresponsive.
85
Fuel 2 actuator nonresponsive.
65-0238—10
Table 7. Fault Listings and Descriptions. (Continued)
Description
Verify correct wiring of potentiometer.
Verify correct wiring of potentiometer.
Verify correct wiring of potentiometer.
Verify correct wiring of potentiometer.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Check for loose potentiometer wiring.
Repeat actuator commissioning ID on-line process.
Repeat actuator commissioning ID on-line process.
Repeat actuator commissioning ID on-line process.
Repeat actuator commissioning ID on-line process.
Turn off remote reset switch; check operation of controller reset button.
Check the manual pot for correct wiring (terminal 36 - 38).
Check for actuator wiring problems or stuck valves or dampers. Place
controller in standby and use actuator manual keys to verify actuator travel.
Were the actuators commissioned properly?
a
Reset control.
a
Reset control.
Remove 39-40 input and reset R7999, if fault clears,
R7999 is ok, and correct 4-20 source.
Check for stuck fuel actuator and/or proper shielding on actuator interface.
Try changing degree of accuracy to 0.5 degree.
Check for stuck FGR actuator and/or proper shielding on actuator interface.
Try changing degree of accuracy to 0.5 degree.
Check wiring of actuator, verify correct ID is being used. Watch
actuator LED to verify that the actuator is being brought online.
A fast flash in the actuator equals offline status, while a one-second
flash equals online status.
Check wiring of actuator, verify correct ID is being used. Watch
actuator LED to verify that the actuator is being brought online.
A fast flash in the actuator equals offline status, while a one-second
flash equals online status.
Check wiring of actuator, verify correct ID is being used. Watch
actuator LED to verify that the actuator is being brought online.
A fast flash in the actuator equals offline status, while a one-second
flash equals online status.
Check wiring of actuator, verify correct ID is being used. Watch
actuator LED to verify that the actuator is being brought online.
A fast flash in the actuator equals offline status, while a one-second
flash equals online status.
a
Reset control.
a
Reset control.
Check actuator wiring and stuck damper/valve.
commissioned properly–are they set off their mechanical stops?
Check actuator wiring and stuck damper/valve.
commissioned properly–are they set off their mechanical stops?
Check actuator wiring and stuck damper/valve.
commissioned properly–are they set off their mechanical stops?
12
Corrective Action
a
a
a
a
a,c
a,c
a,c
a,c
a,c
a,c
a,c
a,c
c
Were the actuators
c
Were the actuators
c
Were the actuators
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