Emerson STN 881 Serie Guide Rapide page 3

DIMENSIONS WITH DETECTOR
The detector must be mounted according to dimension A below. The detector position may be adjusted allowing a 1 mm overlap.
A
B
MOUNTING THE DETECTOR
•
Fit the rail either on front or rear cylinder cover.
•
Respect the directional mounting of detector with LED inwards and
mounting instructions of parts.
•
The detector is screwed into the rail by means of the locking screw.
Max. screwing torque : < 0.2 Nm.
LED
4
Metal plate
Series 445
Cylinder
bore (in mm)
10
16
20
25
A 32
40
B 12 12
1
2
3
2
Series 881
OPERATING SYSTEM
A permanent magnet mounted on the rodless cylinder carrier
operates on stroke end a reed switch (ILS) mounted on the cylinder
cover. The detector is fitted with a warning lamp which lights
when the contact is closed.
A B
ELECTRICAL CHARACTERISTICS
28 49,5
33 49,5 MAX. SWITCHING POWER
36 43,5
AC current
39 43,5
DC current
43,5 43,5
SWITCHING VOLTAGE
49 39,5
MAX. SWITCHING CURRENT : 25 mA VDC - 20 mA VAC
CONTACT RESISTANCE
INSULATION RESISTANCE
WITHSTAND VOLTAGE
RESPONSE TIME opening
closing
REPEATABLITY
LIFE
AMBIENT TEMPERATURE
ELECTRICAL PROTECTION
HOUSING
NF C20010 PROTECTION
CONNECTION
INDICATOR LAMP
(1) The indicator lamp gives a voltage drop approx. 2.5 V.
NOTE : The operating point must be within the shaded zone. Any overvoltage or overintensity may damage the detector.
Polarity to be
respected for DC
application :
Black wire - Pole
White wire + Pole
ELECTRICAL PROTECTION
INDUCTIVE
LOAD
RESISTIVE
LOAD
R = 4 W Resistor= Standard CCTU Resistors, code RP 59
C = Paper, polycarbonate or metalized mylar capacitor.
The user is responsible for supply and assembly of Resistors,
Capacitors or Diodes.
DETECTOR CODE
DESCRIPTION
Magnetic position detector with reed
switch (ILS) and wire outlet for rodless
cylinder with guided carrier - type STG
The detector is supplied with a securing collar adapted to the cylinder diameter.
MAGNETIC POSITION DETECTOR
for rodless cylinder with guided carrier - STG
: 3.45 VA
: 0.75 W
: 10 to 30 VDC - 85 to VAC (1)
: 100 mΩ
: 100 MΩ
: 500 V
: 0.05 ms
: 0.4 ms
: ± 0.1 mm
: 5 X 10 6 operations
: 0°C to + 60°C
: see below
: plastic PBT
: IP42
: 1 Ø 3 mm cable, 1.5 m long, 2 conductors 0.15 mm2
: Red diode (LED) which lights when the contact is closed
I (mA) I (mA)
DIRECT ALTERNATIVE
CURRENT 40 CURRENT
30
20
10
Volts
Volts
-5 -
30 20 10 0 40 85 115
Load
100 Ω / 4W
100V/1A
Diode
0,1µF
630 V
- - +
Load
Protection Protection
not not
necessary necessary
- - +
Ø Cylinder
CODE
(mm)
6-10-16 881 44 525
20-25-32-40 881 44 526
3
Load
R
INDUCTIVE
LOAD
C
Load
RESISTIVE
LOAD
+ - -
PARTICULAR APPLICATIONS
1 - Detectors used for direct control of incandescent
lamps :
The power specified on the lamp is based on its
resistance when hot, the resistance is very low
when turned on with the lamp cold and the
amperage can become very great and may
exceed the ILS rating, allowance should
therefore be made for the actual wattage of the
bulb when cold.
Ω
2 - With wiring longer than 10 m, a 1000 resistor
must be fitted in series with the detector to
reduce the capacitance effect caused by the