h. Object 6208h: Control mode
This object configures the control mode of EPC.
Autonomous mode
In this mode, the DCDC converter is able to supply a load in the HVDC link
side. An example load is a VVVF (Variable Voltage Variable Frequency motor
-controlled
ramp-up from 0V to the HVDC target voltage. If the HVDC side is incorrectly
connected (HVDC plus and minus wrongly connected or under short-circuit),
current-controlled soft start will provide 1.5 to 2 A and will stop showing an
error. When the load/motor consumes energy, the EPC provides power to the
DC link. If the motor generates energy and LVDC is within the limits, EPC will
charge the LVDC (batteries for example).
In this mode, maximum charge and discharge power (object 6205h) are used.
Current or power control
In this mode, the DCDC converter will follow the current or power command
chosen in object 611Bh or 6205h, limiting the voltage (high side and low side)
and power configured through their respective objects.
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