Cabling Inside The Cubicle - Toshiba 2000 V Series Manual

Chapter 8 Installation and Wiring
8
8.4.2

Cabling inside the cubicle

142
Source: Guideline for the Environment of Installing Microcomputer-applied
Instrumentation and Control Devices (by the [Japan Electric Measuring Instruments
Manufacturers' Association])
In case of using a cable duct, place a steel-made separator in a cable duct and separate
the power cables from the trunk cables as shown below.
Transmission cables
Figure 8-1 Example of Cabling through a Duct
In installing cables in a pit, use a separator as used in cabling through a duct.
Signal cables
Figure 8-2 Example of Cable Installation in a Pit
(5) Cabling routes
The order of desirability in choosing a route for transmission cable installation is as
follows:
• Route exclusive to the transmission cables
• Route exclusive to computer system cabling
• Route exclusive to general instrumentation cabling
• Route exclusive to plant control cabling
Observe the following in installing the DeviceNet drop cables.
(1) Wiring route
Use the weak signal route in the cabinet to lay the DeviceNet drop cables.
Keep them at least 50 cm away from the power cables, in particular.
(2) Clamping the cables
Use clamps so that the weight of the cables will not bear on the connectors. Don't
bend the cables in circles smaller the minimum bending radius.
(3) Ask the cable manufacturer for the allowable cable bending radius and other physical
characteristics.
(4) Avoid installing cables at a place where it is hot, moist, dusty, or has oil vapor.
Metal duct
Separator
Power cables
(Instrumentation power
cable, solenoid valve,
operating signal line, etc.)
Separator (steel-made)
Power cables
Grounding (Class D)
model 2000 DeviceNet Module Manual (DN611/DN611A)