Ransburg MicroPak Controller A11789 - Manual (Page 12)

INTERLOCKS AND I/O
Interlock and I/O connections are made to con-
nector P3 on the rear of the controller. P3 con-
sists of three, 8-position terminal blocks A, B,
and C (see Figure 3). To wire to these terminal
blocks, perform the following (see Figure 4):
1. Loosen the two (2) screws of P3’s connector
housing and remove P3 from the controller.
2. Loosen the four (4) screws holding the termi-
nal block assembly to the inside of the connector
housing and remove the terminal block assem-
bly from the housing.
3. Feed the I/O Interlock cable(s) through the ca-
ble grommet attached to the connector housing
and pull out the other side. It may be necessary
to remove the cable grommet to fit the cable(s)
through. If so, slide the grommet connections
onto the cable(s) in the order shown in Figure
4 before pulling the cable through the connector
housing.
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For maximum noise immunity, all wiring
should be run in cables having a foil shield
with an overall braided shield. The foil shield
provides 100% shielding, while the braid
provides a means of making proper 360°
shield terminations at the cable ends.
NOTE
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If multiple I/O / Interlock cables are
used, connect the exposed 1.5” cable braids
together using copper tape.
NOTE
4. Strip the jacket off the cable(s) 3” from the end
and remove the braid 1.5” from the end (see Fig-
ure 5).
5. Strip the individual cable wires, install appro-
priate wire ferrules, and connect to the terminal
blocks according to Table 1.
6. Rotate the connector housing to achieve de-
sired routing of the cable bundle (right or left),
then reinstall the terminal block assembly into
the connector housing.
7. Tighten the connector grommet ensuring the
grommet spring makes 360° contact with the
exposed cable braid/copper tape for maximum
noise immunity.
For maximum noise immunity, the shields of the
I/O and interlock cables should also be connect-
ed to earth ground at the end opposite to the Mi-
croPak controller connections.
If it is necessary or desired to run the interlock
and I/O cable(s) through conduit, an adapter can
be readily purchased that converts the PG21
male threads of the P3 connector housing to
3/4” NPT male threads. This adapter is available
through McMaster-Carr as their Part Number
7842K7.
MicroPak Controller - Installation
10
Ransburg
CP-06-01.1