Emerson FB2100 - Special LED Sequences

FB2100 Flow Computer Instruction Manual
D301783X012
November 2023
88 Service and Troubleshooting
Table 5-1: LED Descriptions
LED
Color/State
Meaning
Link LED GREEN
An active wired Ethernet connection exists.
Otherwise it is off. (FB1200/FB2200 only)
Input LED
GREEN
One of the IR buttons is being pressed.
Flashing YELLOW
CPU booting or CPU has not yet recognized
HMI module when HMI first powered on;
goes off when recognized.
Status LED GREEN
OK – Main power battery pack charged or
not in use.
Flashing RED
Main power battery pack low. Replace/re-
charge lead acid battery pack soon. (If
FB1100 Flow Computer with lithium battery
pack– replace battery pack.)
Flashing YELLOW
FB1100 Flow Computer with lithium battery
pack only: Unit has switched to C cell battery
internal to battery pack. Replace battery
pack soon.
Off
No power
Flashing GREEN
Main power battery pack charging
Alarm LED
GREEN
No alarms.
Flashing RED
HMI firmware update in progress.
RED
Alarms are present.
Table 5-2. Special LED Sequences using Multiple LEDs
LED Sequence
Color/State
Link, Input, Status, and
Alarm all solid RED
HMI module failed. Replace with spare or return for
repairs.
Link and Alarm alternately
flash RED; sequence
repeats
CPU stuck in boot mode. Contact technical support.