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Optional Two-Channel
Arc Protection Card
Optional Digital I/O Card
(DI19/DI20)
NOTE: When this option card is installed, the parameter "Arc card
type" has value "2Arc+BI/O".
NOTE: If the slot X6 is already occupied with the DI19/DI20
digital input card, this option is not available, but there is
still one arc sensor channel available. (See 'Optional
Digital I/O Card – DI19/DI20' below.)
The optional arc protection card includes two arc sensor channels.
The arc sensors are connected to terminals X6: 4-5 and 6-7.
The arc information can be transmitted and/or received through
digital input and output channels. This is a 48 V dc signal.
Connections:
X6: 1
Binary input (BI)
X6: 2
Binary output (BO)
X6: 3
Common for BI and BO.
X6: 4-5
Sensor 1
X6: 6-7
Sensor 2
The binary output of the arc option card may be activated by the
arc sensors or by any available signal in the output matrix. The
binary output can be connected to an arc binary input of another
Allen-Bradley protection device.
NOTE: When this option card is installed, the parameter "Arc card
type" has value "Arc+2DI". With DI19/DI20 option, only
one arc sensor channel is available.
NOTE: If the slot X6 is already occupied with the two-channel arc
sensor card, this option is not available.
The DI19/DI20 option enables two more digital inputs. These
inputs are useful in applications where the contact signals are not
potential free. For example, trip circuit supervision is such an
application. The inputs are connected to terminals X6:1 – X6:2
and X6:3 – X6:4.
Connections:
1
DI19+
X6:2
DI19-
X6:3
DI20+
X6:4
DI20-
X6:5
NC
X6:6
L+
X6:7
L-
9-11
Connections
857-UM001A-EN-P – July 2009
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