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TDK-Lambda
EZA11K series
Quick Manual / Practical(I)
8) EZA operation mode
In EZA, the method of switching the charge / discharge direction is called the operation mode,
and there are the following 6 types.
Here is an overview. The specific operation method will be explained in the Quick Manual,
Practical Part II, so please see that.
①
Manual battery CV mode
Select this mode if you want to charge with EZA. However, since it takes time to
communicate with EZA, it takes 100 milliseconds or more for EZA to actually switch
between charge and discharge even if a command is sent to EZA from a PLC or PC. This
time depends on the communication environment. Note that this time is the same for
switching using pin 9 of external terminal CN described above.
In this mode, EZA is charged with the set value (parameter) of the target battery voltage
and the battery limit current on the battery side, and when it reaches the target battery
voltage, the current is reduced and maintained so that no further voltage rises.
Operating Characteristic
②
Manual Grid CV mode
Select this mode if you want to discharge with EZA. In this mode, EZA discharges with
the set value (parameter) of the target grid voltage and the grid limit current on the grid side,
and when it reaches the target grid voltage, the current is lowered and maintained so that
the voltage does not increase. However, please note that switching to charge / discharge
takes time, in the same way as the manual battery CV mode.
If you want to switch charge and discharge as fast as possible, we
recommend Automatic grid CV mode and Automatic battery CV mode.
