EVSE-01
– USER MANUAL
10
5.3
Control signal CP
Connect the oscilloscope to the CP socket, in order to obtain information about the Pulse-Width
Modulation (PWM) of the control signal. The signal has a frequency of 1 kHz. Signal duty cycle indi-
cates the status of the charging station or the maximum current that the station can supply. The cur-
rent value can be determined based on the following table, contained in EN 61851-1 standard.
NOTE!
Test CP signal in relation to the PE line.
We recommend using a battery-powered portable oscilloscopes with isolated input
and differential probes that ensure galvanic isolation of the oscilloscope.
If the ground wire of the oscilloscope is not isolated from its casing, then before
connecting the oscilloscope, make sure that the PE line of the charging station is
free from dangerous voltage!
