Servomech S.p.A.
21.15-25-50-100-150-200.E - Rev. 01 DD (M/Y) 10/19
10
6.2
FCP inductive proximity stroke limit switches
The INDUCTIVE PROXIMITY STROKE LIMIT SWITCHES allow the actuator to stop before reaching the internal
mechanical stop avoiding damage. If intermediate sensors are present, they can be used to fix intermediate
positions along the actuator stroke length. The inductive proximity stroke end switches are fixed directly on
the actuator outer tube in the required position.
The switches position is not adjustable.
The positions of the two limit switches are the extreme travel positions Lc and La (see Fig. 6.9).
FC 1 – sensor for RETRACTED ACTUATOR Lc position
FC 2 – sensor for EXTENDED ACTUATOR La position
Figure 6.1 – FCP inductive proximity stroke limit switches
Proximity switches are supplied already mounted on the actuator and set to the correct sensing
distance.
DO NOT CHANGE THE SENSING DISTANCE OF PROXIMITY SWITCHES BY MOVING THE TWO NUTS
FIXED ON THE SENSOR.
In case it is necessary to restore the correct sensing distance position, please refer to Fig. 6.1.
The PROXIMITY STROKE LIMIT SWITCHES must be connected to the electric control circuit as shown in the
following WIRING DIAGRAM:
CONTROL CIRCUIT
PROXIMITY SWITCH – TECHNICAL FEATURES
Contact
NC (normally CLOSED)
Type
Inductive, PNP
Voltage
10 ÷ 30 V DC
Max output current
200 mA
Voltage drop (activated
switch)
< 3 V (ref. 200 mA)
Nominal sensing distance
2 mm
Enclosure rating
IP 67
Housing material
Nickel plated brass
Outlet
Multicore PVC cable 3 × 0.2 mm
2
length 2 m
Wiring
DO NOT TRAVEL OVER THE STROKE LIMIT SWITCHES POSITIONS, AVOIDING TO REACH MECHANICAL
STOP AND PREVENTING DAMAGE TO THE INTERNAL COMPONENTS OF THE ACTUATOR.
Actuator
P [mm]
ILA 15 A
4
ILA 15 B
4
ILA 25 A
3.5
ILA 25 B
4
ILA 50 A
3.5
ILA 50 B
4
ILA 100 A
8.5
ILA 100 B
9
ILA 150 A
8.5
ILA 150 B
9
ILA 200 A
13.5
ILA 200 B
14