WEG bacnet CFW701 Quick Setup Manual - page 2

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CFW700 HVAC-R Drives 

2

22

AI1+

Analog input 1 (4-20 mA): 

Control Process Variable

Product XC1 terminal

23

AI1-

35

COM

Common point of the digital inputs

36

DGND

Reference (0 V) for the 24 V dc 

power supply

15 / 34

24 V dc

24 V dc power supply

37

D1

Digital input 1: Start/Stop

19

DI7

Digital input 7:  

Fire Mode Command

20

DI8

Digital input 8:  

Bypass Command

32

C1

Digital output 1 DO1 (RL1): 

VFD Contactor

33

NO1

11

C2

Digital output 2 DO2 (RL2): 

Bypass Contactor

31

NO2

10

A-line 

(-)

RxD/TxD negative

9

B-line 

(+)

RxD/TxD positive

8

GND

0 V isolated from the RS485 circuit

+

-

OFF

OFF

OFF

0N

0N

0N

4-20 mA 

Sensor

120  

V ac

RS485

1)

Note: 1)  BACnet MS/TP, Metasys N2 and Modbus-RTU

CFW701 HVAC-R Drives

1 - Installation and Power Connections 

Refer to CFW701 user guide chapter 3. 

1.1 - Control Connections