ICC13xx/ICC1624 LED Indicators

ICC1314 (all variants)ICC1324 (all variants)ICC1624 (all variants)

1. Onboard RGB Status LEDs

The ICC1624, ICC1324, and ICC1314 controllers feature 4 onboard RGB status LEDs that indicate the current state of the charging station.

1.1. LED assignment

LED	Color (default)	Function
1	Blue	Idle / Ready
2	Green	Charging
3	White	Waiting
4	Red	Error

1.2. Status indications

Situation	LED pattern	Speed	Meaning
Ready (no vehicle)	Blue solid	Steady	System ready, no vehicle connected
Ready (vehicle connected, State B/C)	Blue blinking	Slow	System ready, vehicle connected
Reserved by backend (no vehicle)	Blue blinking	Fast	Reserved for another user, no vehicle
Reserved by backend (vehicle connected)	Blue blinking	Fast	Reserved for another user, vehicle connected
Waiting for authorization	White solid	Steady	Waiting for user authorization
Authorized (no vehicle)	Blue blinking	Slow	Authorized, waiting for vehicle
Charging (vehicle State C)	Green solid	Steady	Active charging
Charging (vehicle State B2)	Green pulsing	Pulsing	Charging suspended by vehicle
Paused / Suspended	Green blinking	Slow	Charging paused or suspended
Unavailable	Red solid	Steady	System unavailable
Unavailable (vehicle State D1/D2)	Red blinking	Slow	System unavailable, vehicle in error state
Permanent error	Red solid	Steady	Permanent system error

1.3. Error indications

Error	LED pattern	Speed	Meaning
Residual current detected (RCD/RCMB)	Red blinking	Slow	Residual current protection triggered
Vehicle State E	Red blinking	Slow	Vehicle error state detected
Diode check failed	Red blinking	Slow	CP diode check failure
Locking failed	Red blinking	Slow	Cable lock mechanism failure
Temperature sensor unreachable	Red solid	Steady	Temperature monitoring failure
Relay input triggered	Red blinking	Slow	External relay input activated
Contactor welded	Red solid	Steady	Contactor welding detected
Meter unreachable	Red solid	Steady	Energy meter communication failure
Overtemperature	Green blinking	Slow	Temperature limit exceeded
Overtemperature warning	Green blinking	Slow	Temperature warning threshold reached
Wrong charging cable	Red blinking	Slow	Incompatible or faulty cable detected
Overload stage 2	Red solid	Steady	Current overload protection triggered
Wrong phase installation	Red blinking	Slow	Phase configuration error
State D	Red blinking	Slow	Vehicle State D detected
Voltage too low/high	Red blinking	Slow	Supply voltage out of range
Meter OCPP error	Red blinking	Slow	Energy meter OCPP communication error
Backend disconnected (if configured as error)	Red flash	Flashing	Backend connection lost

1.4. Blink patterns

Pattern	Visual behavior	Timing	Notes
Blinking slow	LED switches between ON and OFF at a steady rate.	500 ms ON / 500 ms OFF (1 Hz)	Individual blinks are easy to distinguish.
Blinking fast	LED switches between ON and OFF at a higher rate.	125 ms ON / 125 ms OFF (4 Hz)	Often perceived as rapid flicker.
Flash	LED turns ON briefly, then remains OFF for the rest of the period.	125 ms ON / 875 ms OFF (1 Hz)	Short pulse with a long pause.
Pulsing	LED smoothly increases and decreases brightness in a repeating cycle.	4 s brightness cycle	“Breathing” effect.

2. Ethernet indicators

The ICC controllers have integrated Ethernet ports with status LEDs.

Situation	LED pattern	Speed	Meaning
No connection	Off	–	No Ethernet connection
Connected	Green solid	Steady	Ethernet connection active
Data transfer	Yellow blinking	Blinking	Network data transmission