System-disconnection relay EU400 NA-protection
31
Subject to technical changes
12.14
Alarm memory
Independent of the alarm counter, the EU400 stores the most recent 100 shut-down causes (cause,
measurement value, at operating time). Simulated alarms are also registered. The LEDs indicate the cause;
the tripping value that led to the alarm each stands in the 7-segment display. Alternative to that
the time is shown in hours which have passed since the last tripping (with applied control voltage).
These values remain saved even after the power has been turned off.
Query alarm memory:
•
Change into the display mode
•
Press the button several times
→
display
8
ac
xx
8
•
Press the
button 1x
→
display
8
x
.
xx
8
/
8
x
.
xx
8
(tripping value or error no. / time that has passed in hours)
•
Press the
button 1x, go to next alarm
The alarm memory is only deleted during a program change.
12.15
Standby counter and standby time
The standby counter
8
StbY
8
, is increased by 1 with every standby shut-down. Up to 9999 shut-downs are
counted. That lets the EU400 quickly detect how often, e.g., shut-down was performed through a ripple
control receiver.
Query the standby counter:
•
Change into the display mode
•
Press the button several times until
→
display
8
ac
xx
8
•
Press the
button 2x
→
display
8
StbY
8
/
8
xxxx
8
The standby time
8
StbY
8
indicates how long the relay was switched off by the standby mode. It is recorded
with a resolution of 1 minute and only when the control voltage is applied and if no alarm is present.
Query the standby time:
•
Change into the display mode
•
Press the button several times until
→
display
8
ac
xx
8
•
Press the
button 3x
→
display
8
StbY
8
/
8
x
.
xx
8
(Time LED is illuminated)
Delete the standby counter and standby time (only together):
•
Display alarm counter
8
ac
xx
8
•
Press the
button 2x
→
display
8
StbY
8
/
8
xxxx
8
•
Keep the button pressed for 2s until
→
display
8
StbY
8
/
8
0
8
12.16
Code lock
You can protect the set parameters by enabling the code lock here.
The device acknowledges an incorrect entry with
8
Err
8
(flashes three times).
Adjustment process:
•
Select the menu item with the
buttons until
→
display
8
Code.
8
•
Press the button 1x
→
display
8
Pin
8
/
8
0
8
•
Set the
saved
pin code with the
buttons (
default setting is
8
504
8
)
•
Press the button 1x
→
display
8
Code
8
/
8
oFF
8
•
Use the
buttons to set the desired code lock:
o
8
oFF
8
off, all parameters can be changed
o
8
on
8
on, no parameters can be changed
