ABB S500 - Page 25

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V2 S500 Hardware 1-25 System Data S500 / Issued: 01.2007
Terminal Units (S500) and CPU Terminal Bases (AC500) have an mechanical coding which prevents
that modules are inserted to wrong places. Otherwise
• dangerous parasitic voltages could occur or
• modules could be destroyed.
The coding either makes it impossible to insert the module to the wrong place or blocks its electrical
function (outputs are not activated).
The following figure shows the possible codings.
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Positions 1 - 18
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TB511-ETH
TB521-ETH
TB541-ETH
TB511-ARCNET
TB521-ARCNET
TB541-ARCNET
TU505
TU506
TU507-RT-ETH
TU508-RT-ETH
for CPUs for CPUs Interface Modules Real-Time
with Ethernet with ARCNET e.g. DC505-FBP Ethernet Modules
Mechanical codings
for FBP
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TU551-CS31
TU552-CS31
for
TU541
TU542
for
S500 CS31Positioning
ModulesModules
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TU515
TU516
TU531
TU532
I/O Modules
I/O Modules
24 V DC
120/230 V AC
for for
for
Figure: Mechanical coding