User Manual

62 GMC-I Messtechnik GmbH
14.9 Testing the Operating States of Electric Vehicles at
Charging Stations per IEC 61851 (MTECH+ & MXTRA only)
A charging station is an equipment designed for the charging of elec-
tric vehicles per IEC 61851which essentially consists of a plug con-
nector, a cable protection, a residual current device (RCD), as well as
a circuit breaker and a security communication system (PWM).
Depending on the place of installation and application, further func-
tional features such as mains connection and meter may be included.
Adapter selection (test box)
Simulation of operating states per IEC 61851with the MENNEKES test box
(Status A – E)
The MENNEKES test box only serves the purpose of simulating dif-
ferent operating states of an electric vehicle fictitiously connected
with a charging station. The settings for the simulated operating
states are indicated in the operating instructions for the test box.
The simulated operating states can be stored in the MTECH+ or
MXTRA as visual inspection and documented in the IZYTRONIQ.
The operating state (status) to be tested is selected with the
SECLECT STATUS key at the MTECH+ or MXTRA test instrument.
Status A – Charging conductor only connected with charging point
• CP signal is switched on,
• voltage between PE and CP is 12 V.
Status B – Charging conductor connected with charging point and
vehicle
• the charging conductor is locked at the charging point and in
the vehicle,
• vehicle not yet ready for charging,
• voltage between PE and CP is +9 V / –12 V.
Status C – Non-gassing vehicle identified
• Readiness for charging on the vehicle/power side is activated,
• Voltage between PE and CP is +6 V / –12 V.
Status D – Gassing vehicle identified
• Readiness for charging on the vehicle/power side is activated,
• Voltage between PE and CP is +3 V / –12 V.
Status E – Conductor is damaged
• Short circuit between PE and CP,
• Charging conductor is unlocked at the charging point,
• Voltage between PE and CP is +0 V.
Semi-automatic changing between operating states
As an alternative to the manual
changing between operating
states via the parameter menu
of the SECLECT STATUS softkey
at the test instrument, there is
another fast and convenient
way of changing between the
operating states: select status
parameter AUTO. Each time
after replying to and storing a
visual inspection, an automatic
changeover to the next state
takes place, with the keys
shown on the display corre-
sponding to 01/05 A/E (01 = A, 02 = B, 03 = C, 04 = D, 05 = E).
It is possible to skip the status variants by pressing key I
ΔN
at the
test instrument or at the test socket.