Page 424 - Wagp_InterfaceElectronic_Volume4_2015_US.pdf

8 Pluggable Modules - NAMUR Switching Amplifiers

422
NAMUR switching amplifier with relay output NAMUR switching amplifier with relay output
(the switching amplifier has got an isolated (the electronic output V provides the status of
A
output, e.g. for the connection of a PLC) the NAMUR sensor)

Module width 20 mm / 0.787 in Module width 20 mm / 0.787 in

Voltage (V) 120

100
80
60
40
20
0
0 1 2 3 4 5 6
Current (A)
NAMUR switching amplifier for the supply of NAMUR
sensors and the evaluation and amplification of the sensor Sensor +
Sensor 24 V
signals in accordance with DIN 19234 and DIN 50 227. UV + UV 24 V
+
A line break or a sensor short circuit are monitored by the
12 – UA
module and indicated via LEDs. –
–
14
• LED 1 yellow: Line break
11
• LED 2 yellow: Short circuit 11
0 V
• LED 3 red: Output active 1 2 3 1 2 3
0 V 0 V
Description Item No. Pack. Item No. Pack.
Unit Unit
NAMUR switching amplifier 286-880 1 286-881 1

Technical Data Accessories see pages 99 … 100 Accessories see pages 99 … 100

24 V DC (± 10 %) 24 V DC (± 10 %)
Supply voltage V B
Nominal input current 20 mA 20 mA
Input 2-wire NAMUR proximity sensor 2-wire NAMUR proximity sensor
Nominal voltage 8 V DC 8 V DC
Current limitation 8 mA 8 mA
Signal current (1) ≥ 2 mA ≥ 2 mA
Signal current (0) ≤ 1.7 mA ≤ 1.7 mA
Switching delay 10 ms 10 ms
Max. operating frequency 50 Hz
Short circuit monitoring I ≥ 7 mA I ≥ 7 mA
Line break monitoring I ≤ 0.2 mA I ≤ 0.2 mA
Output relay 1 changeover contact transistor
Contact material AgNi 0.15
Max. switching voltage 250 V AC / 120 V DC 24 V DC
Switching current 3 A 0.5 A
Output voltage VA 22 V ± 10 %
Max. breaking capacity (resistive) 750 VA AC; DC see load limit curve
Recommended minimum load 100 mA / 10 V AC/DC ( 1 W, 1VA)
Pull-in/drop-out/bounce time typ. 8 ms / 5 ms / 4 ms 8 ms / 5 ms / 4 ms
Dielectric strength contact-coil (AC, 1 min) 4 kV
Dielectric strength open contact 1 kV
Nominal voltage acc. to VDE 0110 Part 1/4.97,
IEC 60664-1 250 V / 4 kV / 3
Mechanical life 1 x 10 switching operations
8
Mechanical life at max. load (resistance) 3 x 10 switching operations
5
Ambient operating temperature -25 °C ... +40 °C -25 °C ... +40 °C
Storage temperature -40 °C ... +70 °C -40 °C ... +70 °C
Approvals DIN VDE 0160 and IEC 60255, DIN VDE 0435 DIN VDE 0160 and IEC 60255, DIN VDE 0435
(corresponding parts) DIN 19234, DIN 50227 (corresponding parts) DIN 19234, DIN 50227