Kewtech KEWEVSE User manual
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Operating Instructions
KEWEVSE
EVSE Adapter
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Operation elements and connectors
1. Measuring terminals N, PE
2. Measuring terminals L1, L2, L3
3. Phase indicator LEDs for L1, L2, L3 terminals
4. PE and CP Signal output terminals
5. PE Pre-Test warning light indicator
6. PE Pre-Test touch pad
7. “E” - CP Error simulation button
8. PP (Proximity Pilot) State rotary switch selector (open, 13A, 20A, 32A and 63A)
9. CP (Control Pilot) State rotary switch selector (A, B, C, D)
10. PE Error (Earth Fault) simulation button
11. Mains socket. Use for test purpose only. Allowed current max. 10 A
12. Mains socket fuse compartment.
Adapter is equipped with 50cm cable with type 2 EVSE connector.
References marked on instrument or in instruction manual.
Warning of a potential danger, read before use and follow the instruction manual
when using this instrument.
Reference! Please use utmost care.
Caution! Dangerous voltage. Danger of electrical shock.
Ground / earth terminal.
Continuous double or reinforced insulation category II IEC 536 / DIN EN 61140.
Conformity symbol, the instrument complies with the valid directives. It complies
complies with the LowVoltage Directive (2014/35/EU) Standards EN 61010-1 and
EN 61010-031.
UK conformity mark.
product should not be disposed with other household wastes throughout the EU.
To prevent possible harm to the environment or human health from uncontrolled
waste disposal, recycle it responsibly to promote the sustainable reuse of
materialresources.To return your used device, please use the return and collection
systems orcontact the retailer where the product was purchased.They can take this
product forenvironmental safe recycling.
The respective accident prevention regulations established by the professional
associations for electrical systems and equipment must be strictly met at all times.
In order to avoid electrical shock, the valid safety and VDE regulations regarding
excessive contact voltages must receive utmost attention, when working with
voltages exceeding 120V (60V) DC or 50V (25V)rms AC.The values in brackets are
valid for limited ranges (as for example medicine and agriculture).
Measurements in dangerous proximity of electrical systems are only to be carried
out in compliance with the instructions of responsible electronically skilled
technicians, and never alone.
If the operator’s safety is no longer ensured, the instrument is to be put out of
service and protected against use. Safety is no longer ensured, if the instrument:
• shows obvious damage.
• does not carry out the desired measurements.
• has been stored for too long under unfavourable conditions.
• has been subjected to mechanical stress during transport.
technical data section.
1
2
N PE
L1 L2 L3
P
E
PRE-TEST
CP ERROR “E” PE ERROR
CP STATE
PP STATE
CP
SIGNAL OUTPUT
OPEN
13A 20A
32A
63A
B
KEWEVSE
D
BA
B
C
TOUCH
PAD
FS T10A/250V, 5x20mm
HP5 1DE
Kewtech Corp. Ltd.
Stone’s Courtyard,
Max. 250V~/430V 3~, 50/60HZ, max.10A Load, CAT II 300V
PHASE LED STATUS
4
3
5
6
7
8
9
10
11
12
F
Safety information and explanation of symbols used
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Avoid any heating up of the instrument by direct sunlight to ensure perfect
functioning and long instrument life.
The opening of the instrument for fuse replacement, for example, may only be
carried out by professionals. Prior to opening, the instrument has to be switched
off and disconnected from any current circuit.
The instrument may only be used under those conditions and for those purposes
for which it was conceived. For this reason, in particular the safety references,
the technical data including environmental conditions and the usage in dry
environments must be followed.
When modifying or changing the instrument, the operational safety is no longer
ensured.
Testing of the charging station
PE Pre-Test
Prior to all other tests the PE pre-test must be successfully carried out. Never touch
PE terminals at the mains socket on the back of the adapter before the PE pre-test is
The PE Pre-test allows the operator to test the PE conductor for the possible presence
of dangerous voltage against earth.
Normally the PE conductor is connected to earth and has no voltage against earth.
In a situation where the PE conductor is not connected to earth (mistakingly connected
to phase or possibly broken) the user is exposed to a ‘danger to life’ situation.
Test procedure:
- Connect the test adapter to the charging station
- If the light indicator (no. 5) is illuminated then a dangerous voltage is present at the
PE conductor. Stop further testing immediately and remedy the wiring fault.
Do not wear gloves while performing this test and ensure a proper connection to earth.
Never touch any metal parts during this test. In the case of improper earthing (e.g.,
operators body is isolated from the earth) this test may be not reliable.
Proximity Pilot (PP) State (Cable Simulation)
Using the PP State rotary switch, the current ratings of the charging cable can be simulated.
Current ratings are simulated with different resistances connected between PP and PE
conductors. Correlation between resistance and current ratings of the charging cable is
shown in the table below.
TABLE 1
Cable current rating Resistance between PP and PE
No cable
13 A
20 A
32 A
63 A
Control Pilot (CP) State (Vehicle Simulation)
Using the CP State rotary switch selector various vehicle states can be simulated.Vehicle
states are simulated with different resistances connected between CP and PE conductors.
Correlation between resistance and vehicle states is shown in the table below.
TABLE 2
Vehicle State State Description CP-PE Resistance CP terminal voltage
A Electric vehicle not connected ±12V @ 1KHz
B Vehicle connected, not ready to charge 2.74K +9V/-12V @ 1KHz
C Electric vehicle connected, ready to charge,
ventilation not required
+6V/-12V @ 1KHz
D Electric vehicle connected, ready to charge,
ventilation required
+3V/-12V @ 1KHz
CP Signal output terminals
CP signal output terminals are connected to the CP and PE conductors of the tested charging
station via the test cable. (No. 4)
Use an oscilloscope to check the waveform and amplitude of the CP signal.
The Control Pilot function uses Pulse Width Modulation (PWM) to code communication
For details of communication protocol please refer to IEC/EN 61851-1 and the
documentation of the manufacturer of the charging station.
Important note: In the case of incorrect wiring of the charging station, the signal
CP test terminals can become a high live hazardous voltage.
CP Error “E” simulation
“E” - CP Error simulation button (no. 7).With the CP Error “E” button pressed the operator
can simulate behaviour of the station when there is a short circuit between CP and PE
through an internal diode (acc. to standard IEC/EN 61851-1).When the ‘CP Error - E’ button
is pressed the charging process should be aborted and further charging is prevented.
F
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PE Error (Earth Fault) simulation
When the PE Error button (no. 10), is pressed the interruption of the PE conductor is
simulated.The charging process should be aborted and further charging is prevented.
Phase indicator
The phase indicators are LEDs, one LED for each phase (no. 3).When the test adapter
is connected to the charging station and phase voltages are present at the charging
connector, the LED indicators will illuminate.
In the case where the 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 are not intended to be used for phase sequence
testing.
• When testing a single phase charging station, only one LED will illuminate.
Mains socket
The mains socket (no. 11) is connected to L1, N and PE conductors of the charging
station. External load can be connected to the socket.This output is intended for
measuring purposes only and offers the possibility to check the electric power meter
functionality. It is not allowed to supply anything else through the socket.The max.
current is limited to 10 A with an T10A/250V, 5×20 mm fuse located in the back
compartment of the Adapter.
Measuring terminals L1, L2, L3, N and PE
Measuring terminals (no. 1 and 2) are directly connected to L1, L2, L3, N and PE
conductors of the tested charging station. It is permitted to use these for measuring
purposes only. It is not allowed to draw current over a longer period or supply
anything else.
An appropriate measurement instrument is needed.
For electrical safety checks, set the CP state to match the EVSE ratings.
To check the functions of the EVSE charger switch the CP state through from A to C
for chargers without ventilation and from A, through to D for chargers with ventilation.
With reference to table 2 and the EV charger’s manual ensure that the charger
performs as it should.
To perform a loop test turn the CP switch to either position C or D (according to the
type of charger).
Connect your tester into the KEWEVSE adapter and perform a low current loop test.
To test the RCD and 6mA DC protection, connect your tester to the KEWEVSE
adapter.Turn the CP switch to either position C or D (according to the type of
charger). Depending on the sequence of tests performed by your tester after each trip,
reset the RCD and then turn the PP state switch to the A* position and then back to C
or D (whichever is appropriate).
* Some EVS equipment does not require you to do this.
Fuse replacement
The fuse (T10 A / 250 V, 5 x 20 mm). If no voltage is present between the L and N terminals
of mains socket when the charging connector is connected to the charging station and the
charging station is in charging mode, it is possible that mains socket fuse is broken.
• In that case disconnect adapter from the charging station
• Open cover from the back of the adapter (appropriate screwdriver is necessary)
• Locate and replace fuse with the fuse of the same type.
• Return back cover of the fuse compartment.
Cleaning
If the instrument is dirty after daily usage, it is advised to clean it by using a humid cloth and
a mild household detergent. Prior to cleaning, ensure that instrument is switched off and
disconnected from external voltage supply and any other instruments connected (such as
UUT, control instruments, etc.).
Never use acid detergents or dissolvent for cleaning.
Specications
Input voltage: max. 250V (single phase), max. 430V (three phase) 50/60Hz
Measurement Category: CAT II 300V
Mains socket rating: 250V/10A
Mains socket protection: Fuse T10A/250V
PP simulation: Open circuit, 13A, 20A, 32A, 63A
CP simulation: States A, B, C, D
Error simulation: CP error “E”, PE (earth fault) error
PE Pre-Test: Yes
Test connector type: IEC62196-2 Type 2 male
Test cable length: 25cm
Working temperature: 0 … +40ºC
Storage temperature: -10 … +50ºC
Humidity: 0-80% RH
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For repair and calibration please return to us at :
Express Cal
Unit 2, Shaw Wood Business Park, Shaw Wood Way, Doncaster DN2 5TB
01302 761044
Kewtech Corporation Limited
Midas House, Unit 2b, Stones Courtyard, High Street, Chesham, Bucks HP5 1DE
01494 792212
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