ø16 LB Series Miniature Control Units
Flush Silhouette Switch LB Series
Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . 40
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Operating Environment . . . . . . . . . . . . . . . . . . . 40
Removing and Installing the Contact Block . . . . 41
Replacing the Lens and Marking Plate . . . . . . . 41
Marking Plates and Films . . . . . . . . . . . . . . . . . . 42
Notes on Using Receptacles . . . . . . . . . . . . . . . 42
Maintained Pushbuttons . . . . . . . . . . . . . . . . . . 43
Selector Switches . . . . . . . . . . . . . . . . . . . . . . . 43
Single Board Mounting . . . . . . . . . . . . . . . . . . 44
Installing and Removing Contact Blocks . . . . . . 44
Terminal Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 41
Installing the Lens Unit and Contact Block . . . . 42
Replacing the LED Unit . . . . . . . . . . . . . . . . . . . 42
Installing the Rubber Boot . . . . . . . . . . . . . . . . . 43
Switches with Guard . . . . . . . . . . . . . . . . . . . . . 43
Key Selector Switches . . . . . . . . . . . . . . . . . . . . 43
Mounting Holes and Assembly Procedure . . . . . 44
Turn off the power to the LB series control units •
before installation, removal, wiring, maintenance, and
inspection. Failure to turn power off may cause elec-
trical shocks or fire hazard.
To avoid burning your hand, use the lamp holder tool •
when replacing the lamps.
For wiring, use wires of a proper size to meet voltage •
and current requirements. Solder correctly according
to the instructions in "Wiring" and "Notes on Terminal
Cover." Improper soldering may cause overheating
and create a fire hazard. Also, when using tab termi-
nals, use receptacles of appropriate size.
Wiring
1) Solder the terminals at 350°C within 3 seconds using
a 60W soldering iron. Sn-Ag-Cu type is recommended
when using leadfree solder. When soldering, do not
touch the LB series with the soldering iron. Also ensure
that no tensile force is applied to the terminal. Do not
bend the terminal or apply excessive force to the
terminal.
2) Use non-corrosive liquid flux.
Terminal Cover
Solder/tab terminal
Insert the terminal cover into the contact block with the TOP
markings on the contact block and the terminal cover in the
same direction.
Note: When wiring, insert the lead wires into the terminal
cover holes before soldering.
After wiring, the terminal covers cannot be installed.
Standard Bezel
Flush Bezel
Operating Environment
Do not use the LB series where corrosive gases exist or •
under an environment exceeding the operating tempera-
ture and humidity ranges. Otherwise, damages due to
contact failure or change of surface color may occur.
Major parts of the switch are plastic. Scratches or dam- •
ages may occur when scraped with a sharp object or
applied with excessive load or shock. Note that this may
cause operation and appearance failure of the operator
and bezel.
Adherence of detergent, cutting oil, or special chemicals •
to the switch may result in operation failures and appear-
ance failures such as change of surface color.
Handling
Contacts (micro switch)
When using NC (normally closed) and NO (normally open)
contacts of the same microswitch, avoid connections of
different voltages, or connections of different types of power
supplies. Failure to observe this instruction may cause a
short-circuit.
Protection against oil (IP65)
The LB series has been tested according to JIS C 0920:
Appendix 1 by using water insoluble cutting oil Class N3,
No. 8 (JIS K 2241) to prove that the switches will not be
damaged by oil drops or splashes. This may not apply to
special types of oils. Contact IDEC for details.
Safety Precautions
Instructions
LB Series Instructions