ELRV-30 HOYT ELECTRICAL INSTRUMENT, ELRV-30 Datasheet - Page 2

• Manufacturer Part Number: ELRV-30
• Description: CURRENT MONITORING RELAY, SPDT, 0-30A
• Manufacturer: HOYT ELECTRICAL INSTRUMENT
• Series: ELRV-30r

Specifications of ELRV-30

• Contact Configuration: SPDT
• Power Consumption: 6VA
• Supply Voltage Max: 400VAC
• Supply Current Max: 30A
• Relay Mounting: DIN Rail
• Control Voltage: 10VDC
• Coil Voltage Vdc Nom: 85V
• Carry Current: 8A
• Coil Voltage Dc Max: 85V
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

Description
Applying power (assuming no leakage current present)
Viewing and changing the user settings.
Note: The unit is factory set to 30mA trip and instantaneous delay. The remote fault level output is set to 50%. Adjustment of these settings is prevented by the tamperproof cover, which is sealed at
the factory. Access to the push buttons, which are used to change the settings, can only be made once the factory seal is broken. A spare seal is supplied with the unit and should be fitted if any
adjustments are made.
Note: After a change to a setting has been made, the new setting will only be stored once the yellow LED has stopped flashing.
Fault simulation (Test mode)
Fault conditions
Leakage currents
Toroid open circuit
Supply voltage fault
Troubleshooting
Press "Display" button
(If the push button remains
pressed, the display will
alternate between the "I n"
and " t" settings)
DISPLAY
DISPLAY
Telephone: [phone] Facsimile: [phone] Email: [e-mail] Web: http://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.
I n
I n
The operating function of this unit is classed as a Type A
suddenly or slowly rising. Additionally, this unit is protected against nuisance tripping
Apply power and the "positive safety output" relay will energise and contacts 6 and 8 will close. The "standard output" relay will remain de-energised (contacts 12 and 14 open).
After carrying out a self test (all segments illuminate on the LED display for a short period), then indicate the I n setting, followed by the measured “leakage current” that may be present in the
installation. The yellow LED’s to the left of the display show whether the current is “mA” or “A”.
The settings can be viewed and checked by pressing the “Display” push button as shown. Carrying out adjustments to these settings requires the tamperproof cover to be lifted in order to gain
access to the two push buttons underneath.
If during the adjustment of any settings, a push button is released, the display will revert back to indicating the measured “leakage current” after a short duration.
The unit can be placed into a fault condition by pressing the "Test/Reset" button on the front of the unit (or by pressing the remote “Test” button - if fitted). If the unit is already in a “no fault”
condition, i.e., not tripped, the first press will trip the unit. The output relays operate accordingly. The display shows the following characters.
Press the same button again to reset the unit. The display reverts back to any measured leakage current that may be present.
The unit can also be reset using the external “Reset” button (if fitted) or by interrupting the power supply.
To satisfy regulations, it is recommended that the device be tested periodically to ensure correct operation.
If during normal service, the leakage current increases above the setting for the fault level output, the remote lamp will illuminate (if fitted) and the display will flash to give the user early warning
of a possible fault condition. If the fault persists and the level of leakage current exceeds the trip level setting, the unit will trip. The "positive safety output" relay will de-energise and contacts 6
and 8 will open. The "standard output" relay will energise and contacts 12 and 14 will close. The red “fault” LED
Pressing the “Test/Reset” button returns the unit back to normal operation, assuming the fault has cleared. Note that the level of current that caused the unit to trip is now stored and can be
re-called by pressing the “Display” button (see above). Note also that the recorded trip current is only stored whilst power is applied and cleared if the power supply is interrupted.
If the wiring between the unit and toroid becomes damaged (open circuit), the unit will trip.
The display shows the following characters (see right).
After the fault has cleared, press the “Test/Reset” button to return the unit back to normal operation.
If the applied supply voltage is <80% of Un, the unit will not operate and the display shows the
following characters (see right). Both relays remain in the de-energised condition.
After the correct voltage has been established, the same display test sequence occurs as if power
were being applied in a normal manner.
If the unit fails to operate correctly other than that described above, then the fault will more than likely be with the wiring to the unit. Check all wiring and that the connections are good.
Ensure the supply to the unit is present on terminals 1 and 3 and is within the operational limits specified.
OPERATING INSTRUCTIONS AND SETTINGS
(Release "Display" button first)
SET
SET
To modify settings
RESET
RESET
TEST/
TEST/
t
t
1st press displays I n setting.
Press again to change setting.
Press and hold to automatically increment
setting.
(Yellow "mA" or "A" LED's flash according
to range).
I n setting (i.e. 300mA)
Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England
DISPLAY
DISPLAY
sec.
A
mA
I n
I n
1st press
SET
SET
RESET
RESET
TEST/
TEST/
t
t
for which tripping is ensured for residual sinusoidal alternating currents and residual pulsating direct currents, whether applied
DISPLAY
DISPLAY
I n
I n
1st press displays t setting.
Press again to change setting.
(Yellow "Sec." LED flashes)
SET
SET
DISPLAY
DISPLAY
RESET
RESET
TEST/
TEST/
t setting (i.e. 50mS)
mA
sec.
A
I n
I n
t
t
2nd press
.
SET
SET
RESET
RESET
TEST/
TEST/
t
t
Sec.
mA
A
Sec.
A
mA
Sec.
A
mA
will illuminate and the display will stop flashing.
Press and hold I n and t buttons.
Setting will increment automatically
("mA" and "A" yellow LED's flash
simultaneously)
fault level output (i.e. 40%)
DISPLAY
DISPLAY
sec.
A
mA
I n
I n
3rd press
SET
SET
RESET
RESET
TEST/
TEST/
t
t
DISPLAY
DISPLAY
DISPLAY
DISPLAY
I n
I n
I n
I n
SET
SET
SET
SET
Note that the above is only an
example of how the unit could
be set.
RESET
RESET
RESET
RESET
TEST/
TEST/
TEST/
TEST/
t
t
t
t
to trip on last occassion (i.e. 330mA)
measured leakage current or starts
5th press reverts display back to
Max. recordable current is <30A
the "settings" sequence again.
Recorded current causing unit
sec.
mA
A
4th press
ELRV30-1-A
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