User's Manual

User Manual VC-EVCC
© 2021 Vector Informatik GmbH Version 1.3.0 175
The lock movement is stopped if the Inlet_MaxMovementTime has elapsed or the
PlugLock_MotorStatus is error.
When the lock movement is stopped a timer (Inlet_OverloadTimeoutTime) for overload
protection is set, during which no motor movement is possible.
If the lock movement stops and the Inlet_MotorStatus is not locked, an unlock trigger is set.
The timer to ensure a minimum pause (Inlet_UnlockedTime) between an unlocking and the
next locking movement is started also when a lock movement was stopped but the
Inlet_MotorStatus is not locked.
The following table gives an overview of the plug unlocking considering different start and
end positions.
Situation
Start position
Movement
End position
Unlock-A
Bolt is in the no locking position
Unlock movement
Bolt is in the no locking
position
Unlock-B
Bolt is in the locked position
Unlock movement
Bolt is in the no locking
position
Unlock-C
Bolt is in the locked position
Unlock movement
Bolt is in the locked
position
Unlock-D
Bolt is in the failed locking position
Unlock movement
Bolt is in the locked
position
Unlock-E
Bolt is in the failed locking position
Unlock movement
Bolt is in the failed locking
position
Unlock-F
Bolt is in the failed locking position
Unlock movement
Bolt is in the no locking
position
Table 5-37 Plug Unlocking Considerations
5.5.3 Plug Unlocking
Caution
To avoid personal injuries and damage to property, the vehicle must check the
contactor voltage before the unlock permission is set to "Allowed".
If charging is stopped due to either digital input or S3 switch or StopCharge CAN signal,
the VC-EVCC will not monitor whether the contactor voltage has dropped below 60V.
The VC-EVCC start to unlock the plug (set PlugLock_MotorDrive to direction which opens
the plug) if
 VCVCCU_ChargeUnit_State is not StateC and
 VCVCCU_ChargeUnit_State is not StateD and
 VCVCCU_Vehicle_PlugUnlockPermission is allowed and
 VCVCCU_PlugLock_MotorStatus is not error and
 Inlet_OverloadProtection is not active
and either