Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England
Tel: +44 (0) 1902 773746 Fax: +44 (0) 1902 420639 Email: [email protected] Web: www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk
.
P9670-2-A
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7. QUICK VIEW OF USER SETTINGS
It is not possible to edit settings when these screens are displayed.
This feature can also be activated with the front window closed!
•
Press and hold the
button to display the initial power up screen.
•
Press the same button again to display the “Last Tripped Information” screen
(
refer to the next section for further information on this feature).
•
Press again to display the “Overcurrent Summary” screen.
•
Press again to display the contact details for Broyce Control.
•
Press again to revert back to Normal operation.
8. LAST TRIPPED INFORMATION
Refer to next page for detailed information of this feature
Notes during programming
If during programming it is necessary to abort, press the
button briefly.
Pressing and holding either
or
for >1sec. will increment or decrement
the new value at a quicker rate.
Stepping through each User Setting screen is performed by pressing and holding
the
button until the desired screen is displayed.
Short presses of the
button will allow further editable settings to be changed
within a specific screen.
If the user remains in a setting or summary screen where no adjustments or button
presses are made within a certain period, the screen will revert back to Normal
operation. Additionally, any settings that have been made but not stored will not be
saved.
“O/C” refers to Overcurrent.
•
TRIPPING MODE
•
A fault which develops on a phase will be indicated by an increase in current
reading on the LCD. When the level of current exceeds the Low-set setting,
the phase at fault will be highlighted by the digits flashing.
•
The LCD backlight will flash.
•
Relay 2 will energise if assigned to Overcurrent and set to energise at the start
of the time out period (See Section 3. RELAY 2 SETTING).
•
The characters
“I>”
will display to indicate the Low-set has been triggered.
•
If the current continues to increase above the High-set setting, the
characters
“I>”
will change and display
“I>>”
to indicate the High-set has been
triggered.
•
When the unit finally trips, the digits of the phase at fault will stop flashing and
remain highlighted. This allows the user to see which phase was at fault and
caused the unit to trip.
•
The red “Tripped”
“Tripped”
“Tripped”
“Tripped” LED will also flash.
•
The relays which energised are also displayed on the screen after tripping.
•
Press
to reset and return the unit back to normal operation (assuming
the fault has been cleared). The LCD reverts back to displaying the normal
system currents and the red “Tripped”
“Tripped”
“Tripped”
“Tripped” LED stops flashing.
If either relay is set for Auto resetting, then they would have de-energised after the
fault had cleared. The corresponding relay ident (i.e. R1 and/or R2) on the display
would also disappear. Pressing the “R
“R
“R
“RESET”
ESET”
ESET”
ESET” button will only clear the LCD. If either
relay is set for Manual resetting, then pressing the “RESET”
“RESET”
“RESET”
“RESET” button will de-energise the
relay(s) and clear the LCD.
•
PROGRAMMING (continued)
3. RELAY 2 SETTING
Default setting for Relay 2 is to energise at the end of the time out period.
Resetting mode is Auto.
•
Setting of “Relay 2”
“Relay 2”
“Relay 2”
“Relay 2” is carried out in a similar manner as “Relay 1”
“Relay 1”
“Relay 1”
“Relay 1”; however it
is necessary to assign the relay to either energise at the start (S) or end (E) of
the time out period.
Actual LCD presentation when adjustable parameters are displayed.
•
Press and hold the
button to set the options for ““““OVERCURRENT”
OVERCURRENT”
OVERCURRENT”
OVERCURRENT” as
described in the next section.
4. OVERCURRENT SETTING
The description for the Curves is abbreviated when displayed on the screen. Refer
to “IDMT Characteristic Curves” for further explanation.
Default settings for Overcurrent are shown in the last LCD screen example in this
section.
•
Settings for Overcurrent are displayed in turn following subsequent presses of
the
button. The Low-set trip current (I>) is displayed first.
•
Press either
or
to change the current.
•
Press the
button to select the remaining settings and use the
and
buttons to change them.
Actual LCD presentation when adjustable parameters are displayed.
Screen example above also shows the default settings for OVERCURRENT.
•
Press and hold the
button to set the options for ““““EARTH FAULT”
EARTH FAULT”
EARTH FAULT”
EARTH FAULT” as
described in the next section.
If the Curve in selection “2:” is set to Definite Time, then selection “3:” will display
“3: t>” and the required delay can then be set.
If High-set is set to Disable in selection “4:”, then I>> or t>> cannot be
adjusted.
5. OVERCURRENT SUMMARY
It is not possible to edit settings when this screen is displayed.
•
Following the setting of “Overcurrent”, the LCD displays the “Overcurrent”
screen showing a summary of the settings made during programming. All
settings are displayed. The selected CT ratio, Network Frequency and Relay
operation (following a Reset) information is also displayed.
6. SAVING OF SETTINGS
•
If after viewing the Summary screen the settings are correct, press and hold
the
button until the word ““““Saved.
Saved.
Saved.
Saved.”””” appears. Any new settings are now
stored.
•
The screen will revert back to Normal operation.
O/C SUMMARY
I> 5.00A
NI 3/10
k> 0.1
I>>50.00A
t>>0.05s
R1 = MAN R2 = AUTO (E)
CT=5:5, FREQ=50Hz
RELAY CONFIGURATION
RELAY 1: RELAY
2
:
AUTO AUTO (E)
MAN
MAN (E)
AUTO (S)
MAN (S)
O/C SETTING
Low set
1: I> 5.00A
The letter in brackets refers to
whether Relay 2 has been set
to trigger at the start or end of
the time out period.
(E) = E
EE
End of time out
(S) = S
SS
Start of time out
Either abbreviation can appear
after the word MAN or
AUTO
See Section 3. RELAY 2
SETTING
I
L1
20.70
A
I>
I
L2
40.00
A
I
L3
27.50
A
I
L1
20.70
A
I>>
I
L2
89.00
A
R1 R2
I
L3
27.50
A
Low-set
triggered
High-set
triggered
Relay(s) which
energised on
tripping
O/C SETTING
Low Set:
1: I> 5.00A
2: Curve NI 3/10
3: k> 0.1
High Set:
4: I>> 50.00A
5: t>> 0.05s
