Festo SRBC Series Operating Instructions

SRBC-...
Sensorbox
Instructions | Operating
8121896
2019-10d
[8121898]
Translation of the original instructions
1 Further applicable documents
User documentation
Name, type
Sensorbox, SRBC-CA3-N-20N-ZC-EX6
Tab. 1
All available documents for the product è www.festo.com/pk.
2 Safety
2.1 Safety instructions
The cable connector supplied is only for cable throughfeed.
– To ensure the specified degree of protection IP67, seal each cable entry tight
(cable connector, blanking plug).
2.2 Intended use
The sensorbox is intended for recording, electrical feedback and optical display of
the end positions of drives. Appropriate for operation are semi-rotary drives and
other products with a mechanical interface in accordance with VDI/VDE Directive
3845.
3 Service
If you have technical questions, contact the regional Festo contact
è www.festo.com.
4 Product overview
Feature Value
Type SRBC
Design C
Mechanical interface A3
Display type YR
Measuring range 90
Measuring principle N
R
MW
Nominal operating voltage 2A
22A
20N
1
Switching element function N
P
ZC
ZU
1W
Electrical connection C2
Cable joint P20
EU certification EX6
Tab. 2
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
8121896
Table of contents
Operating conditions EX
Description
Sensorbox for process automation
Sensorbox
Mounting adapter, hole pattern 30 x 80 mm, height
20 mm
Position indicator yellow/red
0 ... 90°
Proximity sensors, inductive
Reed with contact
Potential-free contact, changer
110 V AC
250 V AC
8.2 V DC (NAMUR)
24 V DC
NPN
PNP
2-wire N/C contact (NC)
2-wire N/O contact (NO)
1-pin toggle switch
Screw terminal
M20 x 1.5, polymer
II 1GD
1 Position indicator
2 Housing cover
3 Housing screws
4 Proximity sensor
5 Terminal strip
6 Shaft
7 Cable entry with cable connector or blanking plug
8 Mounting adapter with retaining screws
9 Earth connection (PE) on the inside of the housing wall
10 Shaft with cam and spring
Fig. 1
Presetting on delivery:
– Position indicator "closed"
– Switching point for "open" 90° anti-clockwise
5 Function
The shaft transmits the rotation of the drive to the visual position indicator.
Depending on the design, the cams actuate mechanical, inductive or magnetic
proximity sensors to provide the signals at the electrical output, terminal diagram
è Tab. 3 Terminal diagram of sensorbox SRBC.
6 Assembly and installation
For sensorboxes with type SRBC-...-2A and SRBC-...-22A:
WARNING!
Electric voltage
Injury due to electric shock.
• Switch off the power supply before opening the device.
6.1 Assembly
During assembly, observe the position indicator and ensure compliance with the
process fitting.
1. Place the sensorbox with mounting adapter in position and align it.
– Avoid axial load of the drive shaft.
2. Attach the mounting adapter.
– Retaining screws 8, tightening torque 6 Nm ± 10 %
Mounting adapter
When replacing the sensorbox, observe tightening torque. Tightening torque
between mounting adapter and sensorbox: 10 Nm ± 10 %