D4NL

7

Connections

Internal Circuit Diagram

Indicator

Solenoid

Circuit Connection Example

Connection Example for D4NL-

@F@@-B

• Terminals 12 and 41 are connected internally. When connecting

inputs to safety circuits, use terminals 11 and 42. (GS-ET-19).

• Connect terminals 21 and 22 and terminals 51 and 52 in series

when using as safety-circuit inputs (redundancy circuit for

terminals 11 and 12 and terminals 41 and 42 below). Connect the

terminals individually when using as auxiliary-circuit inputs (e.g.,

terminals 21 and 22 for safety-door open/closed monitoring and

terminals 51 and 52 for monitoring the lock status).

• In the following connection example, terminals 21 and 22 and

terminals 51 and 52 are used as auxiliary-circuit inputs.

• Direct opening contacts used as safety-circuit inputs are indicated

with the

mark. Terminals 11 and 42, and terminals 21 and 22

have direct opening contacts.

• Connect the indicators in parallel to the auxiliary circuits or

terminals E1 and E2 (D4NL-

@@@A-B, -@@@G-B, -@@@B-B, and

-

@@@H-B only).

Connecting to contacts with direct opening mechanisms may result

in short-circuit current flowing if the indicator is destroyed, possibly

resulting in incorrect equipment operation.

• Do not switch circuits for two or more standard loads at the same

time. Doing so may adversely affect insulation performance.

• DC solenoids have polarity. Confirm terminal polarity before wiring.

D

R

R

LED

Z

10 to 115 VAC/VDC

Constant-current diode

E1 (+)

E2 (

−)

24 VDC

E1 (+)

E2 (

−)

110 VAC/230 VAC

42

11

21

33

E1 (+)

O1

O2

12

41

51

52

22

34

E2 (

−)

Indicator

(Orange)

Safety

circuit

Auxiliary

circuit

Auxiliary

circuit

Auxiliary

circuit