Festo SRBP-M-CA1- Série Notice D'utilisation page 5

Sensor box
SRBP-M-CA1-...
(en) Operating instructions
Original: de
Sensor box SRBP-M-CA1-... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Operating elements and connections
1
2
4
aF
a a
aE
aD
aC
8
a
aB aA
1
Cover with plastic cap
2
Socket head screw (M5)
3
Indicator ring of the position
indicator
4
Sections of the position indicator
5
Baseplate
6
Reed switch holder (e1 for end
position 1; e2 for end position 2;
m for mid-position)
7
Variant ...-1U-... only: LEDs (l1 for
end position 1; l2 for end
position 2; lm for mid-position)
Fig. 1: Design, operating elements and connections of the sensor box
Festo SE & Co. KG
Postfach
D-73726 Esslingen
++49/711/347-0
www.festo.com
8001064
1110a
e2 e1
l2
lm
l1
m
aJ 6 9 8
8
Mounting screws
(captive)
9
Circular scale
aJ
Fixing screw
aA
Earth terminal
aB
Terminal strip
aC
Magnet holder
aD
Cable connector (max. 2)
aE
Shaft
aF
Driver
a = included separately
2 Design
The sensor box SRBP is contained in a sturdy aluminium housing. A transparent
plastic cap in the cover allows the three-dimensional visual position indicator to be
Fig. 1 1 ). A shaft (
seen (
baseplate, and is linked mechanically with the position indicator. On the sides, the
sensor box has up to two cable connectors, depending on the model (
The visual position indicator is comprised of sections. The sections can be put
together so as to display the flow paths of single-way and multiple-way valves
Fig. 1 3 and 4 ).
(
The housing contains the device electronics and a 9-pin terminal strip for electrical
Fig. 1 aB ). The device electronics include up to three reed switches
connection (
for detecting up to three adjustable positions, depending on the model used.
The reed switches are attached to rotating holders and are actuated by a magnet,
without contact. The magnet holder is joined to the shaft by a slipping clutch.
A circular scale (
switch holders. For ease of commissioning, internal LEDs indicate which reed
switch is being actuated at any time, meaning which of them is in the magnetic
field. Four captive mounting screws (
box are for mounting it mechanically on quarter-turn actuators having a mechani-
cal interface in accordance with VDI/VDE Guideline 3845 (hole pattern
30 x 80 [mm] ).
The sensor box SRBP is available in various designs. Position indicators can be
supplied in a range of colours and materials, with a number of cable connector
options, and in models with different switching functionality (normally open con-
tact; changeover switch).
English
Features
Sensor function
Product design
2
Design
Mechanical interface
Type of display
Measuring range
Sensor principle
3
Mid-position sensing
Nominal operating voltage
4
Electrical connection
Valve connection
1) Blue, green or yellow for valve open; black or red for valve closed
2) Suitable for use together with isolation amplifiers
To relay the control signal for a solenoid valve through the sensor box – not with SRBP–...–20N–
3)
Fig. 2: Type code of the sensor box SRBP
5
3 Function
6
The rotation of the quarter-turn actuator and valve mounted under the sensor box
is transmitted to the shaft of the sensor box. The shaft transmits the rotation to
the built-in magnet and the visual position indicator.
7
The visual position indication shows whether the valve is open or closed. When the
valve is open, the indicator ring (
the flow path. A raised indicator ring indicates that the valve is closed.
1
Indicator ring is
lowered (valve
open)
2
Indicator ring is
raised (valve
closed)
Reed switches are actuated when they are in the magnetic field of the magnet.
With variant ...-1U-... the actuated reed switches are indicated by an LED lighting
up, to help with commissioning (visible while the housing cover is removed during
Fig. 1 7 ). The corresponding electric output signal is applied to
commissioning
the electrical connection (
higher-level systems for evaluation.
Fig. 1 aE ) leads outwards from the centre of the
Fig. 1 9 ) is fitted as an adjustment aid for positioning the reed
Fig. 1 8 ) in the baseplate of the sensor
Type code Description
SRBP– Sensors for angular position, binary, series P
M– Mainly metal
C Box module
A1– Direct mounting, hole pattern 30 x 80 mm
1)
BB Blue/black
1)
GR Green/red
1)
YB Yellow/black
270– Angle of rotation 0 ... 270°
MS Floating contact, N/O contact
MW Floating contact, changeover switch
– None (two reed switches)
A– With sensing (three reed switches)
2)
20N– 8.2 V DC
1U– 24 V AC/DC
T Terminal box (terminal strip)
No valve connection
2 With valve connection (two cable glands)
P20– With cable gland M20, polymer
Fig. 1 3 ) is lowered and the sections indicate
1
Fig. 3: Example – display for single-way valves
Fig. 10 and Fig. 11). This signal can be conveyed to
Fig. 1 aD ).
3)
2