ABB Terra AC User Manual page 39

Problem
There is a relay con-
tact failure
The AC input lines
are reversed.
The error
earth shows
There is no internet
connection
The EV is not charg-
ed
BCM.V3Y00.0-EN | 002 - DRAFT
Possible cause
There is residual current in
the charging circuit.
The relay contact is over-
heated or defective.
The rated current capacity
of the cable is different
from the rated current of
the EVSE.
Missing
The EVSE is not earthed
correctly.
The internet connectivity
between the EVSE and the
router is lost.
The RJ45 cable or plug is
defective
There is no WiFi
There is no 3G/4G connec-
tivity
There is a problem with
the EVSE
Troubleshooting
Possible solution
1. De-energize the EVSE. Refer
to section 6.3.
2. Contact your local representa-
tive of the manufacturer or a
qualified electrical contractor.
Refer to section 1.12.
1. Examine the relay contact.
2. If necessary, contact your lo-
cal representative of the man-
ufacturer or a qualified elec-
trical contractor. Refer to sec-
tion 1.12.
Contact your local representative
of the manufacturer or a qualified
electrical contractor. Refer to sec-
tion 1.12.
Contact your local representative
of the manufacturer or a qualified
electrical contractor. Refer to sec-
tion 1.12.
Connect the EVSE to the internet.
Contact your local representative
of the manufacturer or a qualified
electrical contractor. Refer to sec-
tion 1.12.
Do a check of the WiFi signal
strength at the site.
1. Do a check of the Nano-SIM
card connections.
2. Do a check of the 3G/4G sig-
nal strength at the site.
1. Make sure that the power
supply to the EVSE is on.
2. Examine the EVSE to find if is
working correctly.
3. Examine the mobile app and
the charge LED to make sure
that the charging session is
authorized.
4. Start the charging session.
39