ABB SPAM150C-AA integrated relay protector

Description

SPAM150C-AA Instrumentation grade Shielded Twisted Pair wire should be used for best noise immunity. The

shield should be terminated at a local panel ground near the module.

All inputs are referenced to a common return point for the negative side of the loop power supply,

brought out to the B terminal. The A terminal is not used. SPAM150C-AA Three wire or negative-referenced

sources may require connection to terminal B. An additional external terminal strip may be needed

for the returns.

SPAM150C-AA If the module is installed on an I/O Terminal Block with Barrier Terminals, an Auxiliary Terminal

Block can be used as shown to provide the additional wiring terminals. For the I/O Terminal Block

with Wire to Board Connectors, external connection points are usually preferred, although an

Auxiliary Terminal Block can be used. Auxiliary Terminal Blocks have all terminals connected

together internally.

SPAM150C-AA The Auxiliary Terminal Block with box terminals has 13 terminals, each of which accommodates

one AWG #14 (avg 2.1mm2 cross section) to AWG #22 (avg 0.36mm2 cross section) wire. The

Auxiliary Terminal Block with barrier terminals has nine terminals, each of which can

accommodate one or two wires up to AWG #14 (avg 2.1mm2 cross section).

The diagrams below show terminal assignments for SPAM150C-AA the different types of I/O Terminal Block that

can be used with the module. The Terminal Block with Box Terminals has 25 terminals for each

module. Each accommodates one AWG #14 (avg 2.1mm2 cross section) to AWG #22 (avg

0.36mm2 cross section) wire, or two wires up to AWG #18 (avg. 0.86mm2 cross section). When an

external jumper is used, single-wire capacity is reduced from AWG #14 (2.10mm2 ) to AWG #16

(1.32mm2 ).

SPAM150C-AA The I/O Terminal Block with Barrier Terminals has 18 terminals per module. Each terminal can

accommodate one or two wires up to AWG #14 (avg 2.1mm2 cross section).

The I/O Terminal Block with Connectors has one 20-pin male connector per module

The 16 Point Grouped Input module performs diagnostics and provides 88 bits (11 bytes) of

diagnostic data to the BIU. The module sets the appropriate bit when a diagnostic condition is

detected. The bit remains set until cleared by the appropriate discrete output bit, as described on the

next page. Use of this data is optional. The module is easily configured to use of all, some, or none

of it.

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