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INM MTL SUM5 Rev 1
5.3.1 Mode indicator (M)
The mode indicator uses different colours together with steady, blinking or flashing lights
to display both the current mode of the isolator and its function. Use the following tables
to interpret what is displayed. Use the following table to identify the basic mode.
Channel operation
Channel operation
Red
– flashing
Not defined
Config in base: No
Config in UI: No
Red
– single blink
(On 3s, Off 100ms)
Not defined
Config in base: No
Config in UI: Yes
Green
- steady
AO
Blue
- steady
AI
DO
DI
Use the following table to identify the type of activity/function.
UI function
Configuration
LED behaviour
Repeat mode
AI, AO, DI, DO
Colour for type
Trip mode
AI
Type single blink
Frequency mode
DI
Type single blink
1 in 2 out mode
Slave for any config.
Type double blink
Single blink = On 3s, Off 100ms Double blink = On 3s, Off 100ms, On100ms, Off 100ms
5.3.2 Status indicator (S)
The status indicator is used to identify operating states and any fault/error conditions.
The table below gives a listing of the possible states and how the LED indicates that state.
Condition
Configuration
LED display
Low state
DI and DO
Off
High state
DI and DO
Yellow
OK
AI and AO
Green
Tripped
AI in Trip mode
Yellow
LFD state
All modes
Yellow flash
Module Fault
All modes
Red
White
Magneta
- steady
- steady
