Wiring
3.1 Terminal assignment and power supply
Technology module TM ECC 2xPWM ST (6FE1242-6TM10-0BB1)
Manual, 04/2018, A5E42681298B-AA
21
Table 3- 1
Control Pilot (PWM)
Control Pilot (PWM)
Meaning / available charging current
< 8%
Charging not permitted
≥ 8% .. < 10%
6 A
≥ 10% .. < 85%
available current = PWM [%] × 0.6 A/%
Example: PWM = 50% → 50% × 0.6
A/% = 30 A
≥ 85% .. < 96%
available current = (PWM [%] - 64) × 2.5 A/%
≥ 96% .. ≤ 97%
80 A
> 97%
Charging not permitted
This module does not support power-line communication.
EVSE
Charging station
Vehicle Vehicle
Chassis Chassis
R1
1000
Ω ± 3%
R2
2740
Ω ± 3%
R3
1300
Ω ± 3% (state C) or 270
Ω ± 3
% (state D)
C
S
300 pF
U
a
Voltage measurement of the station
U
b
Voltage measurement (level, frequency, duty cycle) of the vehicle
Figure 3-1
Typical pilot circuit
The vehicle shows its state via the connection of corresponding resistances. To determine
the vehicle status, the positive component of the PWM signal is recorded as a peak value
(U
a
) and read in:
