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Signal contacts and charging sequences
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5 Signal contacts and charging sequences
5.1
Proximity Plug (PP)
The Proximity Plug is used to detect a charging connector in the charging station, and to de
-
termine its current carrying capacity.
Figure 5
-
1
Proximity Plug (PP) wiring
The current carrying capacity is identified according to IEC 61851-1 by means of the Rc re
-
sistor. The device measures the resistance value via the PP signal (Proximity Plug) and de
-
termines the current carrying capacity of the connected charging cable. The coding of the
permissible current for the resistance value is defined in IEC 61851-1.
Evaluation of the PP signal according to GB/T 18487.1
According to GB/T 18487.1, a charging connector is detected when S1/DIP 7 is set to ON,
and a resistance value of 0 Ω is detected on the Proximity Plug. According to GB/T 18487.1,
coding of the current carrying capacity on the charging station is not provided.
Table 5
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1
Coding of the permissible current for the resistance value according to
IEC 61851-1
Rc resistance value
according to the stan
-
dard
Tolerance range
Resulting current carry
-
ing capacity
–
< 75 Ω
Error
100 Ω
75 Ω ... 150 Ω
63 (70) A
220 Ω
150 Ω ... 330 Ω
32 A
680 Ω
330 Ω ... 1000 Ω
20 A
1500 Ω
1000 Ω ... 2200 Ω
13 A
–
> 2200 Ω
0 A
V+
Rc
Proximity
Plug
PE
Содержание EV Charge Control Basic
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