YD-EM279
17
PREMIUM E-MOBILITY
Interface style No Pin function description Color Remarks
5
2
3
6
7
8
4
9
1 Positive 1.5 square Red PIN1 and PIN4 are internally shorted
2 NC / NC
3 Negative 1.5 square Black PIN3 and PIN8 are internally shorted
4 ON signal / Shorted internally to PIN1
5 CANH 0.3 square Black /
6 CANL 0.3 square White /
7 NC / NC
8 CRG signal / Shorted internally to PIN3
3.1.4 Charger fault maintenance determination method
Function definition: The 220V alternating current is converted into DC voltage output through the inverter circuit to
charge the battery.
Common faults: light not on, light not switching, unable to charge fully.
3.1.5 Fault diagnosis and troubleshooting steps:
Light not on: the indicator light is not
working
(1) The power indicator is not on (green indica-
tor):
Check in power - off status: Appearance of the
input plug: no oxidation or fracture.
Conductor appearance: no breakage or fracture
Power socket appearance: the red power
indicator is normal, without trace of discharge arc
Plug - in performance: the charger plug is
inserted in the mains power socket closely
without poor contact.
Yes
1. the input plug damage should stop using, re
place the charger.
2. the mains power outlet damage should re-
place
the new socket
No
Charger fault. Replace the charger.
Light not switching: After connecting the charger to charge the battery, the LED light of the corresponding color
indicates the conversion of the charging state. The actual indication color is wrong.
(1) The red light is not on:
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