State Power supply
module Ready
LED
LHMI Home
button
Alarm
acknowledged
Communication lost between Relay
and LHMI, but no IRF
Steady green High frequency
blinking green
1
N/A
LHMI not running normally or in
start-up initialization phase
Steady green High frequency
blinking green
1
N/A
Process related alarm active Steady green Low frequency
blinking red
2
No
Process related alarm active Steady green Steady red Yes
Process related alarm has been ac-
tive earlier, but is not any more ac-
tive.
Steady green Low frequency
blinking red
2
No
Process related alarm has been ac-
tive earlier, but is not any more ac-
tive.
Steady green Steady green Yes
Relay set to Test Mode Low frequency
blinking green
2
High frequency
blinking green
2
No
The Operator pages can be used as such or customized according to the project’s
requirements using Graphical Display Editor in PCM600. The Engineer pages are
fixed and cannot be customized.
2
1 2 3 4 5 6 7 8 9 10
11 8
Figure 4: Menu bar elements
1
Bay name for the relay
2 Page name
3 Edit mode active (parameter editing)
4 Date, time and time synchronization status
5 Page help (visible if help is available for the page)
6 Login button/logged in user indication
7 Local/remote indication
8 USB memory not connected/connected (visible only if USB port is enabled)
9 Number of active alarms
10 Menu button for Engineer pages
11 Store or reject changed parameters indication
2
Low frequency = 1 Hz
1MRS759142 F REX640 overview
REX640
Technical Manual
47
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