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5.6 Cautionary Notes on Replacing Converter
5.6.1 Replacing the LF230 Converter
The following precautions must be taken to replace the conventional type LF230 with LF232.
Installation
• Since the hole diameter and pitch for mounting fitting, and the dimensions of the LF232 converter
main unit are the same as those of the LF230 converter, it is possible to replace the converter without
changing the mounting panel, installation space, etc.
• The operation switches of the LF232 are infrared switches. If direct sunlight hits the display and the
operation section or if there is something nearby that easily reflects light, this kind of light becomes
disturbance light and the switch operation may not work correctly. Be careful about the installation
location and angle, or take measures such as providing a sunshade or shield plate so that disturbance
light does not hit the operation section directly.
Wiring
• The positions of the LF232 cable ports are the same as those of the LF230.
• The specifications of the cable ports differ as shown in the table below.
Ports on the housing
Attached cable
connection
specifications
Note: The blind plate is not a waterproof type. If it is necessary to install the converter where waterproof
structure is needed, take waterproof measures for unused cable ports such as using sealing plugs sold on
the market.
• Since the terminal block specification of the LF232 is M4 screws, the same as that of the LF230, it is
possible to connect the cables without changing the cable terminals.
Table 5.2 Comparison of Cable Port Specifications
Material
Waterproof grade
Appropriate cable
diameter
Conduit connection port R (PT) 1/2 male thread
Blind plate (seal plate)
LF230
M27 fine pitch thread
Depth 0.433 inch (11mm)
Stainless steel
IP67
Excitation and DI/DO cables
φ0.433−0.512 inch
(φ11−13mm)
Other cables
φ0.394−0.472 inch
(φ10−12mm)
Waterproof blind plate
attached
- 30 -
6F8A0917
LF232
G1/2
Depth 0.433 inch (11mm)
Nylon resin
IP67
φ0.433−0.512 inch
(φ11−13mm)
Not provided
Dustproof blind plate attached
* (Note)
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