Rockwell Automation 1771-OFE Analog Output Module Installation Instructions - Manual (Page 10)

Analog Output Module 10
Publication 1771-IN044C-EN-P - October 2002
The 1771–OFE modules are a modular component of the 1771 I/O
system requiring a properly installed system chassis. Refer to
publication 1771–IN075 for detailed information on acceptable
chassis and proper installation and grounding requirements. Limit
the maximum adjacent slot power dissipation to 10W maximum.
Connect your I/O devices to the cat. no. 1771-WC wiring arm
shipped with the module.
!
ATTENTION
Remove power from the 1771 I/O chassis
backplane and field wiring arm before removing
or installing an I/O module.
• Failure to remove power from the backplane or
wiring arm could cause module damage, degra-
dation of performance, or injury.
•
Failure to remove power from the backplane
could cause injury or equipment damage due to
possible unexpected operation.
!
WARNING
If you connect or disconnect wiring with
field–side power is on, an electrical arc can occur.
This could cause an explosion in hazardous
location installations. Be sure that power is
removed or the area is nonhazardous before
proceeding.
A
0
1
2
3
4
5
6
7
B
Channel 1 output (+) lead
Channel 1 output (Ć) lead
Channel 2 output (+) lead
Channel 2 output (Ć) lead
Channel 3 output (+) lead
Channel 3 output (Ć) lead
Channel 4 output (+) lead
Channel 4 output (Ć) lead
Not used
Not used
User Analog Device
Field Wiring Arm
Cat. No 1771ĆWC
Functional
Ground
NOTE: The 1771ĆOFE module does not supply loop power for
loopĆpowered analog devices (transmitters, transducers, etc.).
Loop power must be supplied by the user.
UserĆsupplied loop power
(if required)
Use Belden 8761 shielded cable for signal transmission to the
analog devices. This cable consists of a single insulated,
twistedĆpair of conductors, covered along their entire length by a foil
shield and encased in plastic. The shield reduces the effect of
induced noise at any point along the cable.
Connect Wiring to the
Field Wiring Arm