D4NL_11 Datasheet, PDF (8/19 Pages) Omron Electronics LLC – Best-selling Guard Lock Safety-door Switch Available in Several Compact, Multi-contact Models

Operation Method
Operation Principles
Operation Key
Solenoid
Mechanical
lock
models
OFF
OFF
D4NL
ON
Operation Key
Plunger
Spring
Lock plate
Solenoid
When the Operation Key is inserted, it is
locked by the lock spring. The door will
stay locked even if there is a power
interruption.
The solenoid is released only when the
lock is turned ON.
OFF
ON
OFF
Solenoid
lock
models
Spring
Lock plate
If the solenoid is OFF, the door will not be
locked when the Operation Key is
inserted. This means that the door can be
opened and closed easily when replacing
workpieces or parts.
The door is locked only when the solenoid
is turned ON. This means that the door will
be unlocked if there is a power interruption
and so this model cannot be used in
systems that would maintain a hazardous
state (e.g., systems requiring toxic gases,
high temperatures, or gears that would
continue to turn due to inertia).
Structure and Nomenclature
Structure
Operation key hole
Terminal 42
Terminal 41
Shorting pin (12-41)
Terminal 12
Terminal 11
Door open/closed
detection switch
Terminal 21
Terminal 22
Terminal 31/33
Terminal 32/34
Solenoid
Terminal E1 (+)
Terminal E2 (−)
Terminal 01
Indicator
Terminal 02
Lock monitor switch
Conduit opening
(horizontal)
Release key _{Conduit opening}
(vertical)
Terminal 52/54
Terminal 51/53
Note: Terminal numbers vary with the model.
The head can be
mounted in 4 directions.
Standard Release Key
(Bottom View)
UNLOCK
LOCK
Back-mounting is also possible.
Two conduits
(horizontal and vertical)
Special release key
Special Release Key
(Bottom View)
UNLOCK
LOCK
8