Hardware Design - ABB REF 542plus Product Manual

Design (cont´d)
Feeder Terminal

Hardware design

Base unit versions
The REF 542plus base unit housing is made
from aluminum sheets. Its surface is chroma-
tized both to protect the housing against cor-
rosion and to improve immunity against
EMC disturbances.
Two different housings are available:
• Standard
• Wide
In both versions, at least the following mod-
ules have to be present:
• the power supply, the mainboard.
• the analog input module
• one binary input and output module
M4
± 0,1
12
33 140
ca. 70
185
Fig. 6 Standard housing version dimensions.
The standard housing can additionally in-
clude:
•
•
Note: The backplane for the 0(4)-20 mA ana-
log output module and the communication
module is different, so the backplane will be
varied according to the order.
The wide housing can additionaly house:
•
•
•
Standard housing dimensions, see Fig. 6.
M4
10 ± 0,1
233,5
261,5
10 233,5 ± 0,1
M4
REF 542plus
another binary input and output module
alternatively the communication module
or the 0(4)-20 mA analog output module.
other 2 binary input and output modules
the communication module
alternatively the 0(4)-20 mA analog out-
put module or the 4-20 mA analog input
module
18
18
1MRS756269
A051268
9