Status Indicators; Table 18 Controller Status Leds - Honeywell UMC800 Installation And User Manual

Status Indicators

Status LEDs
Four LEDs on the CPU module (shown in Figure 30) indicate the operating status of the controller and are
described in Table 18.
Designation
POWER
LoBAT
FORCE
RUN
NOTE: See Table 20 for the details of the indications and their meaning.
Release F
4/01
Number of analog input cards
8
9
10
11
12
13
14
15
16

Table 18 Controller status LEDs

State
Steady on Power is applied to the controller backplane.
Blinking Diagnostic indication. See NOTE.
On The CPU battery is low and needs replacement.
On One or more function block output values have been forced.
On Controller is in RUN mode.
Blinking Controller is in OFFLINE mode
Off Controller is in PROGRAM mode.
OR
If POWER LED is blinking a fault has been detected in
controller. See NOTE.
UMC800 Controller Installation and User Guide
Time to complete one full
scan
(in milliseconds)
1700
1900
2100
2300
2500
2700
2900
3100
3300
Indication
Operation
Status Indicators
59