Ransburg MicroPak Controller A11789 - Manual (Page 11)

SAFETY GROUND
Install the ground wire assembly supplied with
the MicroPak Controller from the ground stud on
the rear of the controller to a true earth ground.
For maximum noise immunity, cut the ground
wire assembly to the shortest length required
and reinstall the end lug before making connec-
tions.
† The ground wire assembly MUST be con-
nected from the MicroPak Controller ground
stud to a true earth ground.
C A U T I O N !
LOW VOLTAGE CABLE
Standard Low Voltage Cable
(A11791-XX)
Plug the connector of the low voltage cable as-
sembly into the appropriate receptacle on the
rear of the controller (see Figure 3). P1 is the out-
put for the leftmost MicroPak control unit, when
viewed from the front, and P2 is the output for
the rightmost MicroPak control unit, if installed.
When making the connection, line the red dot on
the connector with the red mark on the recepta-
cle and push in until it clicks. To remove, simply
pull back on the knurled portion of the connector.
Attach the low voltage cable(s) to the stress re-
lief bar using TR-SSEM-200 cable ties (supplied)
as shown in Figure 3.
Junction Box Cables
(A11498-XX and A11356-XX)
The spray gun can be ordered with special low
voltage cables (A11498-XX and A11356-XX)
for splicing to a junction box. This is sometimes
done in the field, to reduce the amount of cable
that has to be replaced if a failure of the cable
occurs. The control unit and gun ends of these
cables attach as described in the standard low
voltage cable section above. Follow the instruc-
tions below to wire the junction box ends of these
cables:
Junction Box in Hazardous Location
If the junction box is in the hazardous location,
an explosion-proof junction box must be used. In
this case, connect the numbered wires of cable
A11356-XX to the same numbered wire of cable
A11498-XX using a terminal strip inside the ex-
plosion-proof junction box. Ensure the junction
box is grounded to earth ground. Connect wire
18 (braid) of cable A11498-XX to the junction box
(ground). Seal the cable in the explosion-proof
junction box using appropriate explosion-proof
fittings and sealing compound. The exposed
area of the cable braids must be located on the
junction box side of the sealing compound.
Junction Box in Non-Hazardous
Location
If the junction box is in a non-hazardous location,
then it is not necessary to use an explosion-proof
junction box. In this case, use the supplied cable
gland (A11357-02) and gland nut (A11358-02) to
secure the cables at their entry and exit to the
junction box. Install the cable gland in the junc-
tion box and position the cable so that the spring
of the gland makes contact to the exposed braid
of the cable when the gland nut is tightened.
Ensure the junction box is grounded to earth
ground. Connect the numbered wires of cable
A11356-XX to the same numbered wire of cable
A11498-XX using a terminal strip inside the junc-
tion box. The braid of cable A11498-XX will be
grounded through its contact to the cable gland
spring and the grounded junction box. Wire 18,
therefore is unnecessary and may be trimmed
off. Connection in this manner will ensure maxi-
mum noise immunity.
MicroPak Controller - Installation
9
Ransburg
CP-06-01.1