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TDK-Lambda
EZA11K series
Quick Manual / Practical(I)
3)
What can be done via RS-485, what can be done with External Signal
Connecter CN.
EZA series can control all the following functions with RS-485, and all parameters can be set
with RS-485. The Functions in bold can also be controlled by CN rather than RS485.
①
Start and stop the main converter in each operation mode
②
Switching charge and discharge in the CV mode of different value
③
Confirm that the main converter is in operation, stopping
④
Write the parameters necessary for each operation mode (Overwrite change) and check
the set parameter value
⑤
Whether or not an alarm has occurred
⑥
and confirm the type of alarm that occurred
⑦
Resetting heavy alarm
⑧
Voltage and current value on high pressure side, low pressure side, confirmation of EZA
internal temperature
⑨
Confirmation of rotation speed of air cooling fan
External signal connecter CN can perform
①
,
②
,
③
,
⑤
,
⑦
operations shown in bold.
Note, to
operate
①
and
②
with CN, you need to make settings with DIP switch in advance. For details,
check the general items in p8 - 12 in this manual and p10 in the instruction manual.
It is possible to forcibly stop the EZA by shorting Converter Operation Stop Command
signal pin 5 of the External Signal Connecter CN with SG. This stop command signal
takes precedence over all EZA commands and is valid even if the DIP switch is set to the
operation mode via RS-485 which will be described later. In this case, EZA outputs Heavy
alarm.
EZA11K is designed to be unnecessary to use CN,
especially if it controls with RS-485.
It is necessary to change the DIP switch to switch start / stop
and charge direction from CN. If changed, the same
operation cannot be performed via RS-485. (Exclusion of
control)
EZA11K cannot be selected when using CN in Manual Grid
CV battery CC mode.
