
Troubleshooting Field Controllers
Observe the Status LEDs on the front of the field controller and see table below to troubleshoot the controller.
Table 8: Status LEDs and Descriptions of LED States
Description of LED States
Normal LED
State
LED Color
LED Label
Off Steady = No Supply Power or the controller’s polyswitch/resettable fuse
is open. Check Output wiring for short circuits and cycle power to controller.
On Steady = Power Connected
On Steady
Green
POWER
Off Steady = No Faults
On Steady = Device Fault; no application loaded; Main Code download
required, if controller is in Boot mode.
Blink - 2 Hz = Download or Startup in progress, not ready for normal operation
Rapid blink = SA Bus communications issue
Off Steady
Red
FAULT
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (N/A - auto baud not supported)
On Steady = Communication lost, waiting to join communication ring
Blink - 2 Hz
Green
SA BUS
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (auto baud in progress)
On Steady = Communication lost, waiting to join communication ring
Blink - 2 Hz
Green
FC BUS
On Steady = EOL switch in ON position
Off Steady = EOL switch in Off position
Off (Except on
terminating
devices)
Amber
EOL
Repair Information
The MS-FAC2611-0U model is UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC listed for smoke control. If
a field controller fails to operate within its specifications,
contact the Johnson Controls Repair Center in Louisville,
Kentucky, at 1-502-671-7312.
Accessories
See
for field controller accessories ordering information.
Table 9: Accessories Ordering Information
Description
Product Code Number
Transformer, 120/24 VAC, 96 VA, with circuit breaker and 120 VAC outlet, approved for Smoke
Control
PAN-PWRSP-U
Technical Specifications
Table 10: FAC2611-0U Field Application Controller
MS-FAC2611-0U Field Application Controller, UL/cUL 864 Listed for Smoke Control
Product Code Numbers
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply
Class 2 (North America)
Supply Voltage
23
FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions