20-02245 REV E
6
INSTALLATION AND OPERATION
When you receive your RS-485 positioner, carefully unpack it and inspect for any
shipping damage or, if oil-filled, any oil leakage. Please contact the factory immediately
if damage is noted.
OPERATIONAL CHECK
After unpacking your positioner, an operational check should be made prior to
installation of the unit. The following procedure is recommended:
1.
Place the positioner on a table with the connector up.
2.
Make sure controller power is turned off.
3.
Apply a small amount of silicone spray lubricant to the mating connector
and carefully attach it to the bulkhead connector.
4.
Attach the other end of the cable assembly to the controller or other
control system and operate the unit while observing the output shaft.
5.
If any problems are noted, please contact the factory immediately.
INSTALLATION
The RS485 positioners can be operated in any attitude. The unit is installed by
mounting the positioner to a permanent structure. Four 3/8-16 tapped holes are
provided in the mounting boss for the rotator and pan and tilt. Feedback units should be
mounted to a MP-2 mounting plate. The MP-2 mounting plate mounts to the pan output
shaft and utilizes six .390
” diameter mounting holes on a 5.0” bolt circle. This allows for
mechanical hard stops that protect the feedback pots should the unit be accidentally
forced past its soft stops. Reference the Installation Outline drawing for your specific
positioner.
EQUIPMENT MOUNTING
Four 3/8-16 tapped holes in the output shaft are provided for this purpose. A standard
mounting plate as described above is available from ROS, and special mounting clamps
and saddle brackets can be provided if necessary.
The RS485 controlled positioners were designed to handle reasonable payloads
commensurate with the torque curve. Equipment size, weight, distance from the center
of axis, undersea current drag, and forces due to equipment cables are all factors that
should be considered when mounting the equipment. Some general guidelines are as
follows:
