Limit Touch Switch
NL
CSM_NL_DS_E_2_2
Object Actuates Switch and Turns
Built-in Monitor Indicator ON
Instantaneous operation upon contact with extremely
limited hysteresis for high-precision position detection.
Detects minute displacement or lightweight objects with
minimal operating force.
Built-in LED indicator ensures easy operation monitoring.
DC models provide versatile functions in combination
with the S3D2 Sensor Controller.
Be sure to read Safety Precautions on page 6 to 7 and
Safety Precautions for All Limit Switches.
Application Examples
Detection of press completion position. Drill positioning. Detection of workpiece edges.
Detection of mistakes in workpiece Material positioning.
setting or removal.
Detection of minute workpieces.
Press
Workpiece
NL NL NL
Paper (cloth)
Grounding Grounding
rod rod
NL NL
(Ground)
Detection of paper or cloth edge
Displacement detection and control. Thickness control of rolling plates.
(using indirect grounding).
Pressure
NL
Paper (cloth)
NL
Roller
Ground side
Bellows
Detection of paper or cloth seam
(using indirect grounding).
NL
Controller
Motor
NL
Controller
Unit
Unit
NL
Grounding rod
Paper (cloth)
1NL
Ordering Information
Built-in Antenna Model
Model Built-in antenna model
Provides sufficient OT (overtravel). Ensures high-precision positioning control.
Features
Antenna tip withstands bending. OT of 5-mm max. (overtravel)
Coil spring Plunger
Antenna
Series Power supply voltage Model Model
NL1 12 VDC NL1-C NL1-P
NL2 24 VDC NL2-C NL2-P
100 VAC NL3-C 100V NL3-P 100V
NL3
200 VAC NL3-C 200V NL3-P 200V
Antenna only NL1-C ANTENNA ASSY (Same for NL1, NL2, and NL3) ---
Note: Each model is provided with a standard 1-m cable.
Separate Antenna Model
Model Separate antenna model
Features Antenna with 3-m extension cable is available for narrow spaces where conventional limit switches cannot be used.
No antenna Plunger Coil spring with antenna
with antenna
Antenna
Series Power supply voltage Model Model Model
NL1 12 VDC NL1-S NL1-SP NL1-SC
NL2 24 VDC NL2-S NL2-SP NL2-SC
Antenna only --- --- NL1-SC ANTENNA (Same for NL1 and NL2)
Note: Each model is provided with a standard 1-m cable.
Specifications
Item Model NL1 NL2 NL3
Degree of protection IP60
Supply voltage 12 VDC 24 VDC 100 VAC or 200 VAC
Rated frequency --- 50/60 Hz
Grounded object: Contact resistance of 3 k max.
Sensitivity
Non-grounded object: Antenna-to-ground capacitance of 100 pF min.
Current consumption 8 mA 15 mA ---
Leakage current --- Circuit: 2 mA; Antenna: 1 mA *1
Response time 5 ms max. 20 ms max.
Voltage output model: 30 mA at Current output model: Thyristor output model:
Output signal 12 VDC with output 24 VDC (directly switching 100 or 200 VAC (directly switching resistive
impedance of 4.7 k resistive load of 170 mA max.) load of 30 to 300 mA) *2
Insulation resistance 0 V (blue lead wire) is connected to casing 100 M min. at 500 VDC *3
Dielectric strength 0 V (blue lead wire) is connected to casing 1,500 VAC at 50/60 Hz for 1 min *3
Pollution degree
3 (IEC947-5-1)
(operating environment)
Protection against
Class II
electric shock
Proof tracking index (PTI) 175
Switch category D (IEC335)
Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude
2
Shock resistance 200 m/s max.
Ambient temperature 10C to +60C (with no icing)
Ambient humidity 35% to 95%RH
Weight Approx. 370 g (NL@-C, -P) Approx. 550 g (NL@-S) Approx. 680 g (NL@-SP, -SC)
*1. The NL3 has a capacitor and resistor for the protection of the built-in SCR. Therefore, the NL3 has leakage current.
*2. The NL3 requires a current of 30 mA for circuit protection.
Red (Brown)
If the load current is less than 30 mA, connect the bleeder resistance R in i
Power supply
Load
parallel with the load as shown below so that the total current of the load circuit will be 30 to 300 mA. White
100 VAC
(Black)
(200 VAC)
Obtain R from the following formula.
R
NL3
Black (Blue)
V
R= (k)
30 i
Make sure that the permissible power of the resistor is sufficient.
*3. Between current-carrying and non-current-carrying metal parts
2