X20 system modules • Bus modules • X20BM21
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X20 system User's Manual 3.10
4.7.7 X20BM21
4.7.7.1 General information
The X20BM21 bus module serves as a basis for all double-width X20 I/O modules. The internal I/O supply is
isolated to the left. This allows the X20BM21 bus module to be used to set up a separate voltage group if the
X20BT9100 bus transmitter is used for the supply.
•
For creating voltage groups
•
The internal I/O supply is isolated to the left
4.7.7.2 Order data
Model number
Short description
Figure
Bus modules
X20BM21
X20 bus module for double-width modules, internal I/O supply
is isolated to the left
Table 193: X20BM21 - Order data
4.7.7.3 Technical data
Product ID
X20BM21
Short description
Bus module
Double-width bus module, internal I/O supply is isolated to the left
General information
Power consumption
Bus
0.13 W
Internal I/O
-
Additional power dissipation caused by the actua-
tors (resistive) [W]
-
Certification
CE
Yes
cULus
Yes
cCSAus HazLoc Class 1 Division 2
Yes
ATEX Zone 2
Yes
KC
Yes
GOST-R
Yes
I/O supply
Nominal voltage
24 VDC
Permitted contact load
10.0 A
Operating conditions
Mounting orientation
Horizontal
Yes
Vertical
Yes
Installation at altitudes above sea level
0 to 2000 m
No limitations
>2000 m
Reduction of ambient temperature by 0,5°C per 100 m
Protection in accordance with EN 60529
IP20
Environmental conditions
Temperature
Operation
Horizontal installation
-25 to 60°C
Vertical installation
-25 to 50°C
Derating
-
Storage
-40 to 85°C
Transport
-40 to 85°C
Table 194: X20BM21 - Technical data
Summary of Contents for X20 System
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