Operating instruction and technical description
EV tester type 1 and type 2 - 2.0
©
Walther-Werke Ferdinand Walther GmbH
Seite 11 von 12
5 Troubleshooting
Error, fault
Cause
Remedy
Measuring device
of EV simulator
does not react
Batteries are empty
Exchange batteries of measuring device (see
maintenance).
Attach the device correctly.
EV simulator
does not react
Voltage supply is missing
Plugs are not inserted correctly
Switch positions are wrong
Check voltage supply of charging infrastructure
Check pre-fuses
Check plug connection
Check switch positions
RCD does not trigger;
LED is shining
permanently while
pushbutton FI/RCD is
pressed
Plugs are not inserted correctly
RCD does not work correctly or
is not available.
Check plug connection
Release pushbutton immediately
Check RCD and switch on again
Check 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 Off
PE is interrupted
Check connection. Only one connection may be
occupied.
Check position of switch type 1 – type 2
Switch on the PE switch
Check PE
No line simulation
possible
Measuring line defective or
not available
Switch positions during
simulation of power values are
wrong
Use measuring line
Switch on the "simulation power values" switch
More than one switch (13, 20, 32 63 A) is switched
on
Wrong measuring
values with the coding
resistor
Measuring line inserted
Switch "Simulation power
values" wrong
Remove measuring line
Switch off the "simulation power values" switch
Faulty resistor inside the cable
