LubriMist
®
Model IVT
Oil Mist Generating System
Installation and Operating Manual
Page 58
of 256
Remote Communication Serial Port
The IVT Oil Mist Generator is equipped with a serial data communication port (RS-422/485) that
can be connected to a user furnished serial communication device. The data communication port
will accommodate either a 2 wire RS-485 or 4 wire RS-422 configuration. For addition information
on the serial port see
Serial Data Port – RS-422/485
in the REMOTE COMMUNICATION AND
ALARM section of this manual.
Terminal connections for RS-422/485 serial port in the NEC version of the Model IVT Oil Mist
Generator are located in the low voltage controller enclosure.
1. To access the controller enclosure, open the mechanical access door on the left side of the
IVT console cabinet. Inside the mechanical compartment and located above the reservoir are
two electrical control enclosures. The electrical enclosure located to the right is the controller
enclosure. Conduit is provided inside the mechanical compartment for the users wiring. The
conduit connects the external remote alarm connection and the controller enclosure.
2. Open the controller enclosure. Locate the I/O expansion board mounted on top of the main
controller circuit board. The RS-422/485 data communication terminals are located on the
expansion board, and are labeled
TX-
,
TX+
,
RX-
,
RX+
. Install the communication wiring
through the conduit, and connect the circuit to the proper terminals.
3. Close and secure the controller enclosure door.
Ensure that source power for the remote alarm
circuit is disconnected before attempting to
connect the remote alarm signal.
Ensure that all previously connected sources of
electrical power are disconnected before opening
the ac power enclosure and attempting to
connect to the remote alarm contacts.
RS422/RS485
RS232
INTERFACE
INTERFACE
See page 97 for wiring
instructions
Remote Alarm
Connection
¾ Inch Conduit
Conduit For Wiring
Locate The
Controller Enclosure
