Interpreting the status indicators – Rockwell Automation 1771-OD16 AC (120V) ISO Output Installation Instructions User Manual

Page 9

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AC (120V) Isolated Output Module, 16 Outputs

9

Publication 1771Ć5.21 -February 1997

The module has 18 indicators (below), consisting of 16 output status
indicators, an active indicator and a fuse blown indicator. The 16
status indicators will light when an ”on” signal has been
communicated between the module and the system backplane.

00

01

02
03

04

05

06

07

10

11

12
13

14

15

16

17

Output

State

Indicators

(red)

ACTIVE

ACTIVE

Indicator

(green)

FUSE

Fuse Blown

Indicator

(red)

10544ĆI

The ACTIVE indicator will light when the module has started up and
successfully initialized.The FUSE blown indicator will light when
the fuse has cleared or been removed and the channel associated with
that fuse has been turned ”on.” The fuse-blown circuit will not
operate if the applied voltage to that channel is above the specified
minimum ”on-state” voltage, and the output load current is less than
or equal to 5mA. The FUSE blown indicator will reset after the fuse
has been replaced and chassis power has been cycled.

Interpreting the Status

Indicators

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