Emerson EV1000-2S0004G User Manual page 19

Precautions for communication port connection:
The PE terminal of each drive should be earthed at a
nearby grounding point;
The GND terminal of each drive should be connected
together;
RS485 communication uses shielded cables, which is
earthed at one side. The earth wire of the shielded cable
is connected to RS485 communication module (PE) .
If the above standard wiring methods cannot meet the
requirements, you can take the actions below:
Use isolated RS485 communication module;
If the noise is transmitted through the GND line to the
drive or other devices, which results in malfunction of
them, you may disconnect the GND lines.
4) Multi-function Input Terminal and FWD, REV Wiring
The multi-function input terminals use full-bridge rectifying
circuit, as the below figure shows. PLC is the common
terminal for X1~X5, FWD and REV. The PLC terminal can
sink or source current. Wire connections X1~X5, FWD and
REV is flexible and the typical wiring is shown below:
① Connection method 1
It is default to use the drive's internal power source 24V, i.e.
PLC connected with P24.
If you want to use external power supply, make sure to
remove the wire between PLC and P24.
EV 1000
RS485 port
Function terminal
－ RS485 －
＋ RS485 ＋
Figure 3-12 RS485- (RS485/RS232) -RS232 communication cable
EV1000
RS485 port
Func Terminal
Twisted
signal－Func
RS485－
cable
signal+ Func
RS485＋
EV2000
TD3000
Figure 3-13 RS485- (TDS-PA01) -PROFIBUS wiring diagram
EV1000 Series General Purpose Variable Speed Drive User Manual
RS485/RS232
converter
shielded
Function Terminal
cable
＋ 5V
5V power
●
Transmit TXD
Receive RXD
Ground GND
●
Terminal Function
RS485 － －
RS485 ＋ ＋
TDS-PA01
fieldbus
Connect to
Func
Terminal PROFIBUS
RS485－ A
RS485＋ B
TDS-PA01
TDS-PA01
+
DC
current
-
K
Figure 3-14 External power supply wiring diagram
② Connection Method 2
Drive's internal +24V power supply is used and the external
controller uses PNP transistors whose common emitters are
connected, as shown in Figure 3-15.
E x te rn a l C o n tro lle r
●
●
C O M
●
S h ie ld n e a r th e d riv e
s h o u ld b e g ro u n d e d
Figure 3-15 Internal +24V wiring diagram (source)
Chapter 3 Installation and Wiring
Sign-a
Pin
l
Enclo-
PE
sure
RXD 2
TXD 3
GND 5
DTR 4
DSR 6
RI 9
CD 1
RTS 7
CTS 8
Be able to connect
1-32 RS485
+24V
P24
PLC
+
R
-
X1、X2 . . . X5
FWD、REV
COM
D 2
P 2 4
●
C O M
●
P L C
●
●
F W D
●
X 5
●
P E
17
+3.3V
EV1000
E V 1 0 0 0
+
3 .3 V
2 4 V
-
D C
3 .3 V