Service manual

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Fig.3-14 analog output terminal wiring
3.6.4 Communication terminal wiring
EDS1000 inverter provides RS485 serial communication interface for the user.
Following wiring methods make single-main single-sub control system or
single-main multi-sub control system possible. Using upper machine(PC or PLC
controller)software can realize real time supervision to inverter in the industrial
control system so that realize complicated run control such as long-distance
control, high automatization etc; you can also take one inverter as mainframe and
the others as submachine to form cascade or synchronous control network.
(1) When inverter RS485 interface connected to other devices with RS485
interface, you can connect wire as below figure.
(2) To connect remote control keypad, you can connect plug of remote control
keypad to RS485 directly. No need to set any parameter，inverter local keypad
and remote control keypad can work at one time.
Analog meter
AO1
AO2
GND
Analog current output
Analog voltage output
JP6
JP6
0
～1
0
V
4～20mA
(1) When inputing anglog signal，can connect filter capacitor or common module
inductance between VCI and GND or between CCI and GND or between YCI and
GND.
(2) Analog input, output signal is easy to be disturbed，so must use shielded cable when
wiring and well grounded, wiring length should be as short as possible.
note
EDS1000
RS485
Device with
RS485 interface
or EDS1000
A(485+)
B(485-)
1(485+)
3(485-)
(E)PE
Fig.3-15 Communication terminal wiring