3
I
NSTALLING AND
P
OWERING THE
G308
MOUNTING INSTRUCTIONS
This operator interface is designed for through-panel mounting. A panel cut-
out diagram and a template are provided. Care should be taken to remove any
loose material from the mounting cut-out to prevent that material from falling
into the operator interface during installation. A gasket is provided to enable
sealing to NEMA 4X/IP66 specification. Install the ten kep nuts provided and
tighten evenly for uniform gasket compression.
Note: Tightening the kep nuts beyond a maximum of 17 inch-pounds (1.92 N-
m) may cause damage to the front panel.
CONNECTING TO EARTH GROUND
Each G308 has a chassis ground terminal on the back of the unit. Your unit
should be connected to earth ground (protective earth).
The chassis ground is not connected to signal common of the unit.
Maintaining isolation between earth ground and signal common is not required
to operate your unit. But, other equipment connected to this unit may require
isolation between signal common and earth ground.
To maintain isolation
between signal common and earth ground care must be taken when connections
are made to the unit.
For example, a power supply with isolation between its
signal common and earth ground must be used. Also, plugging in a USB cable
may connect signal common and earth ground.
1
1. USB’s shield may be connected to earth ground at the host. USB’s shield
in turn may also be connected to signal common.
POWER SUPPLY REQUIREMENTS
The G308 requires a 24 VDC power supply rated at 24 W. Your unit may
draw considerably less than 24 W depending upon the options being used. As
additional features are used your unit will draw increasing amounts of power.
Items that could cause increases in current are additional communications,
optional communications card, CompactFlash card, and other features
programmed through Crimson.
In any case, it is very important that the power supply is mounted correctly if
the unit is to operate reliably. Please take care to observe the following points:
–
The power supply must be mounted close to the unit, with usually not
more than 6 feet (1.8 m) of cable between the supply and the operator
interface. Ideally, the shortest length possible should be used.
–
The wire used to connect the operator interface’s power supply should
be at least 22-gage wire. If a longer cable run is used, a heavier gage
wire should be used. The routing of the cable should be kept away from
large contactors, inverters, and other devices which may generate
significant electrical noise.
–
A power supply with a Class 2 or SELV rating is to be used. A Class 2
or SELV power supply provides isolation to accessible circuits from
hazardous voltage levels generated by a mains power supply due to
single faults. SELV is an acronym for “safety extra-low voltage.” Safety
extra-low voltage circuits shall exhibit voltages safe to touch both under
normal operating conditions and after a single fault, such as a
breakdown of a layer of basic insulation or after the failure of a single
component has occurred.
CONFIGURING A G308
The G308 is configured using Crimson software. Crimson is available as a free
download from Red Lion’s website, or it can be purchased on CD. Updates to
Crimson for new features and drivers are posted on the website as they become
available. By configuring the G308 using the latest version of Crimson, you are
assured that your unit has the most up to date feature set. Crimson software can
configure the G308 through the RS232 PGM port, USB port, or CompactFlash.
The USB port is connected using a standard USB cable with a Type B connector.
The driver needed to use the USB port will be installed with Crimson.
The RS232 PGM port uses a programming cable made by Red Lion to
connect to the DB9 COM port of your computer. If you choose to make your
own cable, use the “G308 Port Pin Out Diagram” for wiring information.
The CompactFlash can be used to program a G3 by placing a configuration
file and firmware on the CompactFlash card. The card is then inserted into the
target G3 and powered. Refer to the Crimson literature for more information on
the proper names and locations of the files.
CABLES AND DRIVERS
Red Lion has a wide range of cables and drivers for use with many different
communication types. A list of these drivers and cables along with pin outs is
available from Red Lion’s website. New cables and drivers are added on a
regular basis. If making your own cable, refer to the “G308 Port Pin Outs” for
wiring information.
USB, DATA TRANSFERS FROM THE
COMPACTFLASH CARD
In order to transfer data from the CompactFlash card via the USB port, a
driver must be installed on your computer. This driver is installed with Crimson
and is located in the folder C:\Program Files\Red Lion Controls\Crimson
2.0\Device\ after Crimson is installed. This may have already been
accomplished if your G308 was configured using the USB port.
Once the driver is installed, connect the G308 to your PC with a USB cable, and
follow “Mounting the CompactFlash” instructions in the Crimson 2 user manual.
C
OMMUNICATING
W
ITH THE
G308
All tolerances ±0.010" (±0.25 mm).
ALL NONINCENDIVE CIRCUITS MUST BE WIRED USING
DIVISION 2 WIRING METHODS AS SPECIFIED IN ARTICLE 501-
4 (b), 502-4 (b), AND 503-3 (b) OF THE NATIONAL ELECTRICAL
CODE, NFPA 70 FOR INSTALLATION WITHIN THE UNITED
STATES, OR AS SPECIFIED IN SECTION 19-152 OF CANADIAN
ELECTRICAL CODE FOR INSTALLATION IN CANADA.
WARNING - DO NOT CONNECT OR DISCONNECT CABLES
WHILE POWER IS APPLIED UNLESS AREA IS KNOWN TO BE
NON-HAZARDOUS. USB PORT IS FOR SYSTEM SET-UP AND
DIAGNOSTICS AND IS NOT INTENDED FOR PERMANENT
CONNECTION.
The protective conductor terminal is bonded to conductive
parts of the equipment for safety purposes and must be
connected to an external protective earthing system.
