Matt:e EVU-1-100TP, Installation Manual

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EV Charger Connection Unit
V1.10 16 | P a g e
Operating Instructions
With the incoming isolator closed the unit will monitor the incoming
supply. Approximately 1 second after closing the incoming isolator the
O-PEN monitor will energise the under-voltage release mechanism of
the 5 pole isolator. At this point the 5 pole isolator can be closed to
connect the load to the incoming supply.
In the event the O-PEN unit detects a fault condition on the neutral of
the monitored supply for a period of 4 seconds the internal relays will
de-energise and remove the supply to the under-voltage release
mechanism of the 5 pole isolator. This will cause the 5 pole isolator to
open disconnecting all phases, neutral and CPC from the load.
After any fault condition is detected causing the monitor to enter a
tripped condition the monitor must be reset by cycling power to the
unit via the 4 pole incoming isolator.
Test Function
A Test Switch is provided to allow the functionality of the
units to be checked. With the unit powered and the 5 pole
isolator closed rotate the Test Switch anti-clockwise to
position O to initiate a test. This will disconnect L1 from the O-PEN
monitor and create a fault condition. After 0.7 seconds the O-PEN
monitor will trip the 5 pole isolator by de-energising the under-voltage
release mechanism. We recommend the unit is tested on a 6 monthly
basis.