Ransburg RCS 2 Ratio Control System - Manual (Page 17)

INSTALLATION
SYSTEM GUIDELINES
Customized Prints
Drawings and information contained in this section
of the manual is applicable to most installations.
However, in many cases, will supply custom
installation drawings for your specific site. It is
highly recommended that if your installation differs
significantly from the installation drawings supplied
by, you notify your representative to ensure that
standard installation practices are not violated and
to have your prints updated to reflect the installation
accurately for future reference.
Cable Assemblies
Interconnections between all control panels and
the fluid panels are made using custom manufac-
tured cable assemblies with military style connec-
tors. This simplifies installation and eliminates the
possibility of items being wired incorrectly. The
one exception to this is the discrete interface I/O
wiring. These connections will vary greatly from
installation to installation. This can involve well
over 100 connections per control console and,
therefore, require that conduit be run to the control
console and multiple cables or wires pulled from
the control console to the controlling medium
(PLC, robot, etc.).
Equipment Grounding
All panels should be grounded in accordance with
either the National Electrical Code or local electri-
cal codes (whichever is more stringent). Refer to
the electrical installation drawings provided by to
locate the grounding terminal for all control panels.
Equipment Locations
All of the panels must be located outside of the
hazardous area with the exception of the intrinsi-
cally safe version of the Remote Operator’s Panel
(and in some cases the fluid panel). If in doubt,
refer to local codes and ordinances, or contact
your representative for clarification.
There are four basic panels used in the RCS-2
system:
• Main Control Console
• Motor Amplifier Panel
• Fluid Panel
• Remote Operator’s Panel
The motor amplifier panels must be placed within
100-feet of the control console, the fluid panels
must be placed within 10-feet of their respective
motor amplifier panel, and the remote operator’s
panel must be placed within 25-feet of its respective
motor amplifier panel. If longer distances than
this are necessary, contact your representative.
Fluid Regulators
It is highly recommended that a pilot operated
fluid regulator (similar to the DR-1 regulator) be
used on the inlet of all of the gear pumps. The
accuracy of the pumps depends to a high degree
on controlling the differential pressure across the
pump. The system includes pressure transducers
in the motor amplifier panels to pilot these fluid
regulators. In this way, the software has full con-
trol of fluid inlet pressure of the pumps and can,
therefore, control the differential pressure across
each pump. By using this feature, the extremely
accurate flow rates and ratios can be maintained,
without the need to calibrate the pumps.
Intrinsic Safety
The motor amplifier panels can be ordered with
optional zener barriers that make the fluid panels
and the remote operator panels intrinsically safe
for operation inside hazardous areas. An optional
explosion-proof catalyst flow sensor and motors
are also available. They must be hard-piped if
used in hazardous areas.
RCS-2 User Manual - Installation
14 LN-9407-00.2
Ransburg