OCPP Error Codes#
Overview#
This document details the OCPP error codes implemented in the charging station.
Status Notification for non-fault conditions#
The StatusNotification message is used to report the operational status of the charging station. It can also be used to report non-fault conditions, such as when an error or warning has been raised but does not prevent the charging station from functioning normally.
In such cases, the error code is not included in the PDU withe the following message format:
errorCode: “NoError”
severity: 1
vendorErrorCode: “AMINA_INFO”
vendorId: “amina”
info: “Internal information message of max 50 characters”
Charging Station LED will not change state.
Structure of Error Codes#
StatusNotification message sent by the Charge Point to the Central System contains an error code if the Charge Point detects a fault condition. The error codes are defined by the OCPP specification. The list below lists the error codes implemented in our charging stations.
Status Notification for fault conditions#
EVCommunicationError#
Indicates a breakdown in communication between the charging station and the electric vehicle.
errorCode: EVCommunicationError
severity: 2
info: A car communication failure event has occurred
Charging Station LED will be blinking orange.
GroundFailure#
Indicates detection of DC current leakage by the Residual Direct Current – Detecting Device (RCD-DD).
errorCode: GroundFailure
severity: 2
info: A RCD-DC fault event has occurred
Charging Station LED will be steady orange.
HighTemperature#
Indicates that the charging station’s temperature has exceeded safe operational limits.
errorCode: HighTemperature
Severity: 2
info: An overtemperature event has occurred
Charging Station LED will be steady red.
NoError#
See the Status Notification for non-fault conditions above.
OverCurrentFailure#
Indicates that the charging current protection has detected a critical overcurrent condition and tripped.
errorCode: OverCurrentFailure
severity: 2
info: A critical overcurrent event has occurred
Charging Station LED will be steady red.
OverCurrentFailure#
Indicates that the Electric Vehicle has attempted to draw more than the maximum allowed current as communicated by the Charge Point to the Electric Vehicle. This is a rare condition where certain EVs attempts to consume too much power upon connection.
errorCode: OverCurrentFailure
severity: 2
info: An overcurrent event has occurred
The Charging Station LED will be steady green, and charging will be stopped.
PowerSwitchFailure#
Indicates that the power switch has failed to operate correctly. The relays have been stuck in the closed position, requiring hardware maintenance.
errorCode: PowerSwitchFailure
severity: 2
info: Welded relays, EVSE may need service
Charging Station LED will be blinking red. The charging station will be permanently disabled until the product is replaced.
OtherError#
Indicates an error with the charging station that doesn’t fit into one of the pre-defined error categories.
Unsupported Grid Type#
Indicates that an unsupported grid type has been detected.
errorCode: OtherError
severity: 2
vendorErrorCode: “AMINA_UNSUPPORTED_GRID_TYPE”
vendorId: “amina”
info: An unsupported grid type has been detected
Charging Station LED will be blinking red-white. The grid type is only detected during charging station boot sequence. If an invalid grid configuration is detected, the charging station is temporarily disabled.
Valid grid configurations are:
Single Phase IT/TN/TT#
Grid type |
Phase angle |
Lx to Ly voltage |
L1 to N voltage |
L1 to PE voltage |
N to PE voltage |
|---|---|---|---|---|---|
IT |
N/A |
N/A |
230V² |
132V¹ |
132V¹ |
TT 230V |
N/A |
N/A |
230V² |
132V |
132V |
TT 400V |
N/A |
N/A |
230V² |
230V |
0V |
TN |
N/A |
N/A |
230V² |
230V |
0V |
Three Phase TN#
Grid type |
Phase angle |
Lx to Ly voltage |
Lx to N voltage |
Lx to PE voltage |
N to PE voltage |
|---|---|---|---|---|---|
TN |
120°³ |
400V² |
230V² |
230V |
0V |
Three Phase TT#
Grid type |
Phase angle |
Lx to Ly voltage |
Lx to N voltage |
Lx to PE voltage |
N to PE voltage |
|---|---|---|---|---|---|
TT 400V |
120°³ |
400V² |
230V² |
230V |
0V |
Three Phase IT / TT-230V#
Grid type |
Phase angle |
Lx to Ly voltage |
Lx to N voltage |
Lx to PE voltage |
N to PE voltage |
|---|---|---|---|---|---|
IT |
60°³ |
230V² |
230V² |
132V¹ |
132V¹ |
TT 230V |
60°³ |
230V² |
230V² |
132V |
132V |
Notes:
On IT grids, the PE conductor is not bonded to a fixed reference, so the measured voltage can vary within a range of 0V to 230V.
The measured voltage is accepted within a tolerance of ±10%, per the supply voltage range specified in Section 4.1 of EN60038.
The measured phase angle is accepted within a tolerance of ±10°.