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TDK-Lambda
EZA2500 series
Quick Manual / Practical (III)
1) Construction of communication environment with RS-485
The connection diagram for controlling EZA2500 with RS-485 is shown below. Since it is also
described in Quick Manual basic version, if you have already referred to it, proceed to the
next chapter.
①
LED of Indicator
②
RESET :Tactile Switch
③
ADDRESS : Rotary Switch
④
Grid Signal connector (DC320V HVDC Terminal)
DC320V HVDC Power Supply Input Output Terminal: GND (Connected to housing), -V,
+V (The fuse is connected to +V) from the left
⑤
CN : External Signal Connector
⑥
DIP SW
⑦
RS-485 : Serial Interface Connector
⑧
Battery Signal connector (DC48V LVDC Terminal)
DC48V Power Supply Input Output Terminal: -V
，
-V, +V, +V (The fuse is connected to
+V) from the left
Select the DC / AC inverter with a regenerative function that can apply the
specified voltage to the grid side of EZA even when EZA is stopped, and that
can be used for DC
⇒
AC and AC
⇒
DC.
When connecting a DC input power source such as a PV inverter to the grid
side, enable “Grid Ramp Up” of EZA. For details on “Grid Ramp Up”, refer to
section 4) in this manual.
