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Operating instruction and technical description 

EV tester type 1 and type 2 - 2.0 

©

 Walther-Werke Ferdinand Walther GmbH 

 

 

 

 

 

 

 

Seite 4 von 12

 

3  Operating instructions 

3.1  General description 

By means of the EV simulator, the functions of charging devices for electric vehicles (charging stations, wall 
boxes etc.) and pluggable charging cables (mode 3) can be tested by simulating the electric vehicle. After 
installation or for service purposes, this is directly possible at the charging infrastructure.   

The present version can be used for type 1 and type 2 charging devices, both with firmly connected charging 
cable and with charging sockets and separate charging cable. By means of the provided measuring line, 4 
different cable cross sections can be simulated. 

The EV simulator comprises the following functions: 

 

Measuring the built-in resistance inside the type 2 plug (between PP and PE) 

 

Measuring the built-in resistances inside plug type 1 (between CS and PE) and  
checking the interlock's switching function  

 

Ampacity simulation of a charging cable 

 

Checking the PE connection between PWM and vehicle  

 

Simulation of a leakage current > 30 mA from L1 to PE 

 

Simulation of vehicle status B, C, D and indication of charging voltage via LEDs 

 

CP test jack for PWM signal  

 

The device simulates both faults which can occur during normal use, and different operating conditions of an 
electric vehicle. It only comes to a small power drain of approx. 3 mA from the connected charging device. 
Additionally, a load current of max. 6 A can be drawn from the built-in Schuko socket via L1 or a test device 
for RCD control can be connected. 

Attention: 

The Schuko socket shall only be used shortly for measuring purposes. Permanent usage is not allowed. 

Furthermore, Walther offers EV simulators both as service-case version for type 1 or type 2 charging devices 
with integrated charging jack (acc. to SAE J1772 or IEC 62196, USA, Japan) and with firmly connected 
charging cable and charging plug type 2 (acc. to IEC 62196). 

 

 

 

Photos: EV tester/simulator for type 2, EV tester/simulator for type 1 and type 2 with firmly connected cable (from left to right) 

Summary of Contents for E-Boxx EV Simulator

Page 1: ...nstruction and technical description EV Simulator for charging devices with charging plug charging coupler charging cable type 1 and type 2 as service case Photo EV simulator tester with enclosed measuring line by ...

Page 2: ...dling 4 2 Features of the EV simulators 4 3 Measuring of built in resistances inside plug type 2 4 4 Ampacity simulation of resistances inside plug type 2 4 5 Measuring of built in resistances inside plug type 1 4 6 Checking the PE connection between PWM and vehicle 4 7 Simulation of a fault by means of a switchable fault current 4 8 Simulation of vehicle status B C D and display of charging volta...

Page 3: ... these recommendations helps minimizing the risk of health damages injuries property damages and production downtimes Please see that these precautionary measures will be observed it s in your own interest Train and instruct the operating personnel thoroughly The system must only be operated and opened by trained technical staff Store these instructions in a way that they are clearly visible and w...

Page 4: ... checking the interlock s switching function Ampacity simulation of a charging cable Checking the PE connection between PWM and vehicle Simulation of a leakage current 30 mA from L1 to PE Simulation of vehicle status B C D and indication of charging voltage via LEDs CP test jack for PWM signal The device simulates both faults which can occur during normal use and different operating conditions of ...

Page 5: ...of up to 6 A can be connected 3 2 2 Hardware configuration Perform the following steps consecutively Remove all parts of the packaging carefully Avoid damaging Check the device thoroughly regarding transport damages and other damages Supplier and forwarder have to be informed immediately about each damage Check whether all parts have been delivered completely If applicable do also consider spare p...

Page 6: ... even cause a short circuit Toggling between the two charging sockets is made by the changeover switch in the middle of the operator panel The plug should only be withdrawn when the electric vehicle is switched off EV status B C and D Aus OFF The tester has no integrated interlock 4 2 Switching on the EV simulator The EV simulator is switched on by inserting the charging plug into the charging soc...

Page 7: ...o measured values are indicated the plug has to be checked Attention The integrated measuring device is for resistance measuring only and should therefore only be switched on shortly for measuring the resistances will result in a longer battery durability Under no circumstances leave it switched on during other test procedures with applied voltage 4 4 Simulation of resistors ampacity inside plug t...

Page 8: ... only one switch at a time may be switched on This simulation is only possible and permissible with type 2 The measuring line may only be used for this purpose Charging an electric vehicle with this measuring line is not permissible not possible Photo Switch for simulating the ampacity of the charging cable 4 5 Measuring of built in resistors inside type 1 plug Acc to SAE J1772 the type 1 plug con...

Page 9: ...In switch position Ein ON the PE is connected in switch position Aus OFF it is interrupted Thus the connection between PE and CP on the vehicle side is interrupted and the charging process should be switched off by the charging device Now the charging device should no longer react to operating the switches Status EV signal CP B C or D 4 7 Simulation of a fault by means of switchable fault current ...

Page 10: ...ehicle is connected to the charging device and is ready to be charged PWM signal 9 V By additionally operating switch C i e B and C the electric vehicle requests charging current and it is switched on by the charging device Please note that no thereby no charging power is withdrawn The electric vehicle which is simulated by the EV tester would be charged now PWM signal 6 V By operating switch D in...

Page 11: ...ck wiring of the installation The oscilloscope connected to the BNC female jack delivers no signal BNC plug is not inserted correctly Switch positions are wrong Check switch positions B C D Check position of switch type 1 type 2 Check BNC plug Check oscilloscope settings Charging device does not react to simulation Plug is not inserted correctly Switch type 1 type 2 in wrong position Switch PE is ...

Page 12: ... to be separated from the charging device prior to any maintenance work Maintenance work may only be carried out by trained specialised staff To avoid increased contact resistances the contacts on the charging sockets of the EV tester and on the plugs of the charging cable and the measuring line have to be checked 7 General technical specifications Length approx 360 mm Width approx 310 mm Height a...

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