Ransburg 9040 Service Manual page 18

9040 Low Voltage Control Unit Kit- Installation
External High Voltage Control
If a method of high voltage triggering, other than
the factory supplied method, is required, the 9040
Cascade control unit allows for external high
voltage control from a PLC, pressure switch,
airflow switch, or other user-supplied device. To
turn the high voltage on, the user-supplied device
must create a contact closure between terminals
1 and 2 of the External Wiring Plug (2PL). The
wiring from the user-supplied external high
voltage control device can be connected directly
to the outside terminals of 2PL, or for installations
requiring conduit,
terminals 2SOC-1 and 2 as follows:
1. Ensure the front panel fuse is removed, the
control unit is unplugged, and the ON/OFF
switch is in the OFF position.
2. Loosen the front panel screws and slide the
control unit chassis out.
3. Route the contact wires of the control device
through the external wiring grommet opening
and connect to the existing wiring for 2SOC-1
and 2SOC-2. The control device contacts must
be rated for at least 100 milliamps at 15 volts
DC.
4. Slide the chassis back in, secure the front
panel screws, replace the fuse, and plug in the
control unit.
A separate normally open (NO) exter-
>
nal high voltage control contact MUST
be used for each control unit in multiple
con-trol unit applications. One contact
CAN-NOT be used to trigger the high
voltage for multiple control units.
15
connected to the
NOTE
External Overload Reset
The 9040 Cascade control unit allows for use of an
external (normally closed) overload reset button.
This is convenient when the control unit is mounted
in a hard to reach or inconvenient location or when it
is desired to control overload reset of several control
units from a single location.
A separate normally open (NO) exter-
>
inside
nal high voltage control contact MUST
be used for each control unit in multiple
control unit applications. One contact
CAN-NOT be used to trigger the high
voltage for multiple control units.
The wiring from the user supplied external
overload reset device can be connected directly to
the outside terminals 2PL-2 and -3 (remove
factory installed jumper from 2PL-2 to 2PL-3), or
for installations requiring conduit, connected to
the inside terminals 2SOC-2 and 3 as follows:
1. Remove the factory-installed jumper from
2PL-2 to 2PL-3.
2. Ensure the front panel fuse is removed, the
control unit is unplugged, and the ON/OFF
switch is in the OFF position.
3. Loosen the front panel screws and slide the
control unit chassis out.
4. Route the contact wires of the external reset
device through the external wiring grommet
opening and connect to the existing wiring for
2SOC-2 and 2SOC-3. The external reset device
contacts must be rated for at least
100 milliamps at 15 volts DC. The contacts of
the external reset device must be normally
closed.
5. Slide the chassis back in, secure the front
panel screws, replace the fuse, and plug in the
control unit.
NOTE
CP-11-01