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TDK-Lambda
EZA2500 series
Quick Manual / Basic
④
Grid Connection Terminal (DC320V HVDC, Grand Terminal)
DC320V HVDC Power Supply Input Output Terminal, -V, +V (The fuse is connected to +V)
Please note that if you mistakenly connect polarity of plus or minus, internal circuit of EZA will
be damaged.
⑤
CN : External Signal Connector
It is an external signal terminal. I / O are open collector compatible.
It is used to control startup and stop without using RS485. Use this terminal also when you
want to provide an external switch for emergency stop.
⑥
DIP SW
DIP Switch functions as a setting switch to designate operating mode and RS485 parameter of
this converter. DIP switch is turned ON when the lever is pressed down. The setting of the DIP
switch is effective when the CPU on the control board once goes reset.
⑦
RS-485 : Serial Interface Connector
LAN cable can be used with the same shape as Ether-net used on RJ-45 PC LAN. However, it
is not compatible with LAN (Ether-net). Check the pin assignment of RS-485 in the instruction
manual.
⑧
Battery Connection Terminal (DC48V LVDC Terminal)
DC48V Power Supply Input Output Terminal -V
，
-V, +V, +V (The fuse is connected to +V)
Please note that if you mistakenly connect polarity of plus or minus, internal circuit of EZA will
be damaged.
When controlling EZA with RS485, you do not need to use CN in
particular. (For details, see p10, 11 of the instruction manual)
In order to reset the CPU, it is necessary to turn the power supply
of EZA high voltage side and low voltage side once to 0V. (For
details, see the instruction manual p10)
There are two connectors, but you can connect to either cable. When
using multiple EZAs, connect the free port to the other EZA
connector with a cable. Such a way of connecting the communication
lines is called a daisy chain. (For details, see the instruction manual
p13)
