2.1 Relay front panel
2 Local panel user interface
Operation and configuration
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VM59.EN001
2.1.4.
Operation indicators
The relay is provided with twelve LED indicators:
Figure 2.1.4-1. Operation indicators of the relay
LED indicator
Meaning
Measure/ Remarks
Power LED lit
The auxiliary power has
been switched on
Normal operation state
Error LED lit
Internal fault, operates in
parallel with the self
supervision output relay
The relay attempts to
reboot [REBOOT]. If the
error LED remains lit,
call for maintenance.
A- H LED lit
Application-related status
indicators.
Configurable
F1 / F2 LED lit
Corresponding function
key pressed / activated
Depending of function
programmed to F1 / F2
Resetting latched indicators and output relays
All the indicators and output relays can be given a latching
function in the configuration.
There are several ways to reset latched indicators and relays:
From the alarm list, move back to the initial display by
pushing the CANCEL key for approx. 3s. Then reset the
latched indicators and output relays by pushing the ENTER
key.
Acknowledge each event in the alarm list one by one by
pushing the ENTER key equivalent times. Then, in the
initial display, reset the latched indicators and output
relays by pushing the ENTER key.
The latched indicators and relays can also be reset via a remote
communication bus or via a digital input configured for that
purpose.
2.1.5.
Adjusting display contrast
The readability of the LCD varies with the brightness and the
temperature of the environment. The contrast of the display
can be adjusted via the PC user interface, see chapter 3.
