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...

Typical

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Power

...

Draw

...

The

...

following

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table

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shows

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the

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typical

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power

...

draw

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(in

...

Watts)

...

for

...

the

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FAC-2100

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under

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various

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conditions:

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Test

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Condition

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18VDC

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Power

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24VDC

...

Power

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28VDC

...

Power

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36VDC

...

Power

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Unit

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On,

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Idle

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(No

...

Schema)

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4.2

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4.4

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4.7

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5.7

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Additional

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Power

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for

...

All

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Front

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Panel

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LED

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On

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2.8

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2.8

...

2.8

...

2.8

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Additional

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Power

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for

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Analog

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and

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Digital

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Outputs

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On

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0.25

...

0.25

...

0.25

...

0.25

...

Additional

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Power

...

for

...


3

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Solid

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State

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Relays

...

and

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2

...

Mechanical

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Relays

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1.3

...

1.3

...

1.3

...

1.3

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Additional

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Power

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per

...

mA

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of

...

Load

...

on

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28V

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Auxiliary

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Output

...

0.05

...

0.05

...

0.05

...

0.05

...

Power Connection Diagram

The diagram below shows the connections for powering the device. Note that a chassis ground braid must be connected between the stud on the back of the device and an Earth/chassis grounding point to provide EMI and ESD protection. The braid used during MIL-STD 461 EMI testing can be ordered using Fairmount Automation Part Number: 30110-015.



Warning: An improperly grounded case could result in electrical shock or incorrect operation of the controller.

Fuses

Each FAC-2100 has a fuse located in the rear of the device on the connector panel. Refer to the Parts List section for the fuse specification and ordering information.

Auxiliary Output Power

The FAC-2100 contains a 28V isolated (from the DC input power source) output source available to power sensors, actuators, etc. Most circular connectors on the back of the FAC-2100 contain pins that provide access to this source.


Note that the design of the Auxiliary Output Power source allows for multiple FAC-2100s to short together (no steering diodes are required) their power sources to provide a redundant source. As an example, this feature can be useful when multiple controllers are reading the same powered sensor – by connecting the Auxiliary Output Power from all controllers to the sensor it ensures that all controllers will be able to read the sensor if any or all others are offline.