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Connection of Digital Outputs, DO
The digital outputs DO can be connected to a PLC/ DCS or
via optional external relays to machine stop, external warning
lamp, etc. The output circuit must not exceed 1 A, 36 V DC.
The circuit is normally open.
Connection of digital output located in hazardous
area zone 0 and 1.
If Digital Output is connected to equipment located in Ex
hazardous zone 0/20 or 1/21, Intellinova
to be ordered as special. The actual type of equipment
intended to be used must be specified at the time of order
of the Intellinova
System units, so that a suitable IS barrier
®
can be installed.
Connection of digital output located in safe zone.
The push-in terminal blocks on the circuit board are marked
with numbers:
DO channel 1
38
39
DO channel 2
40
41
DO channel 3
42
43
Holes for additional cable entries intended for signal cables
to the digital outputs have to be drilled. Drill holes in the
punch marks on the enclosure with max. 0.5 mm larger di-
ameter than the cable gland. Cable glands of type "Ex e"
or "Ex t" with suitable size for the cable must be used. The
maximum cable gland size is M20 x1.5.
•
Make sure that the System Unit is in power off position.
•
Drill holes and mount suitable Ex cable entries on the
flange.
•
Tighten the gland nut. The tightening torque must be
followed by the appropriate manual.
•
Open the cable gland and guide the cable end through
the inlet.
•
Push the conductors firmly into respectively terminal.
•
Tighten the inlet sealing nut. The tightening torque
must be followed by the appropriate manual.
•
Perform periodic pressure test according to "Service
and Maintenance" on page 19 to check that the
enclosure is properly sealed.
A red status indicator on the circuit board, next to the termi-
nal block, lights when a DO channel is active.
Digital Outputs
System units need
®
– 16 –
Digital outputs on circuit board
38 39 40 41 42 43
DO1
DO2
Max. 1 A,
36 V DC
Relay
Connection to optional external relay (DO 1)
Max. 1 A,
36 V DC
Power Supply
Connection to PLC / DCS (DO 1)
DO3
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