Output operation – Rockwell Automation 6189V-OB36 Digital Output Accessory Installation Instructions User Manual

Page 7

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Digital Output Accessory 7

Publication 6180W-IN003B-MU-P

The following diagram shows a typical load connection at digital output F8.

Output Operation

An output that is connected to the terminal block will be energized when its
corresponding key is pressed on the keypad at the front of the 1200W workstation.

The keys on the bezel of the 1200W are momentary push button switches. Any key
press energizes its corresponding output only while the key is pressed. Although
the keys of the bezel have a snap-action tactile feedback, this feedback is not a
foolproof indicator of electrical contact. It is possible to make and break the
electrical contact without a tactile sense of the change of state. Ensure that the
application is designed in such a way that the load is not sensitive to rapid
make/break operation of the bezel keys.

Output Specifications

Operating Voltage Range

10…50 V dc

Off-State Leakage Current (per point)

1 mA (maximum)

Minimum Load Current (per point)

1 mA

Maximum Load Current (per point)

0.25 A

On-State Voltage Drop

1.2V dc @ 0.25 A

WARNING

The digital outputs are not under any form of software control. If
a load and a power supply are connected to the digital output ac-
cessory, the load will be energized whenever its corresponding
key on the bezel of the 1200W is pressed. The output function is
disabled only by disconnecting the wiring from the accessory.
Make certain that the installation provides appropriate safeguards
to prevent accidental or unintentional operation of the loads con-
nected to the accessory.

F7

F17

F8

F18

F9

F19

F10

F20

+VDC

+VDC

DC

COM

DC

COM

DC
Supply

+

+

-

-

Load

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