ABB Symphony Harmony Series, Instruction, Page: 153 / 402

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Auxiliary Block
Auxiliary Block
An auxiliary block extends I/O block capabilities (Fig. 3-16 ).
There are different types of auxiliary blocks available (refer to
Table
1-1 ).
An auxiliary block shares a similar housing layout with I/O
blocks. Its mounting method is slightly different, however. The
block occupies one block position on the mounting column,
but does not connect to either power or Hnet. A front panel
door conceals the terminal strips and various circuitry to pre-
vent accidental contact.
I/O System Configuration
Harmony I/O system configuration requirements are minimal:
•
Auxiliary blocks
Auxiliary blocks Auxiliary blocks
Auxiliary blocks - either require no configuration or
require minimal configuration (i.e., jumper setting) depend-
ing on type.
Figure 3-16. Auxiliary Block
T 00 96 0 A