Control Pilot (CP) State (Vehicle Simulation)
With the CP State rotary switch selector (see Figure 2 #10)
various vehicle states can be simulated, when the test adapter is connected to the charging station. Vehicle
states are simulated with different resistances connected between CP and PE conductors. Correlation between
resistance and vehicle states is shown in Table 2 below.
Marking of
Vehicle State
A
Electric vehicle (EV) not connected
Electric vehicle (EV) connected, not ready
B
to charge
Electric vehicle (EV) connected,
C
ventilation not required, ready to charge
Electric vehicle (EV) connected,
D
ventilation required, ready to charge
Table 2: Correlation between resistance, vehicle state and CP voltage signal.
CP Signal output terminals
CP output terminals (see Figure 2 #11) are connected to CP and PE conductors of the tested charging station
via the test cable. The yellow socket is connected to PE.
This output is intended for connection of an oscilloscope to check the waveform and amplitude of the CP signal.
Control Pilot function uses Pulse Width Modulation (PWM):
The purpose of the Control Pilot function is communication between a vehicle and charging station. The duty
cycle of the PWM signal defines the possible available charging current.
For details of communication protocol please refer to IEC/EN 61851-1 and the documentation of the
manufacturer of the charging station.
CP Error "E" simulation
With the CP Error "E" button (see Figure 2 #9) CP Error can be simulated (acc. to standard IEC/EN 61851-1). When
CP Error "E" is pushed, a short circuit between CP and PE through internal diode is made. As a result, the pending
charging process is aborted and new charging processes are prevented.
PE Error (Earth Fault) simulation
With the PE Error button (see Figure 2 #8) an interruption of the PE conductor is simulated. As a result, the
pending charging process is aborted and new charging processes are prevented.
Phase indicator
The phase indicator consists of three LED lamps, one for each phase (see Figure 2 #6). When the test adapter
is connected to the charging station and phase voltages are present at the charging connector, the LED
indicators will illuminate.
Notes:
• In the case neutral (N) conductor is not present or it is interrupted, LED indicators will not indicate possible
voltage presence at L1, L2 and L3 conductors. The LED indicators cannot be used for phase sequence testing.
• If the charging station has only a single-phase output, only one LED will illuminate.
Mains socket
The mains socket (see Figure 4 #4) is connected to L1, N and PE conductors of the charging station via the test
adapter when it is connected to the charging station. This output is intended for measuring purposes only
and offers the possibility to check if the electric power meter works and counts in the right manner (load test).
Therefore, an external load can be connected for measuring purposes only. It is not allowed to supply anything
else. The max. current is limited to 10 A. The mains socket is protected against overload with T10A/250V, 5×20
mm fuse (see Figure 4 #5).
The type of this mains socket depends on the version of the EVA-500 Test Adapter:
EVA-500-D
Schuko socket (CEE 7/3)
EVA-500-CH
Swiss socket type 13
EVA-500-UK
UK socket
EVA-500-F
French socket type E
Vehicle State
9
Resistance between
CP and PE
∞
Open (
)
2.74 kΩ
882 Ω
246 Ω
Voltage at CP
terminal
±12 V
1 kHz
+9 V / -12 V
1 kHz
+6 V / -12 V
1 kHz
+3 V / -12 V
1 kHz