Switch Amplifier
Features
• 2-channel isolated barrier
• 24 V DC supply (bus powered)
• Dry contact or NAMUR inputs
• Application-specific outputs
• 2 passive transistor outputs (resistive)
• Line fault transparency (LFT)
• Up to SIL2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals (NAMUR sensors or dry
contacts) from a hazardous area to a safe area.
Each input controls a passive transistor output with a resistive
output characteristic.
The outputs have three defined states: 1-Signal = 6.5 V
voltage drop, 0-Signal = 33 kΩ and 6.5 V voltage drop and
fault > 100 kΩ.
This output characteristic offers line fault transparency on the
signal lines.
Switches allow to reverse the output mode of operation and to
disable the line fault detection of the field circuit.
This device mounts on a HiC Termination Board.
Application
This device is compatible to the control:
• Yokogawa ProSafe DI card SDV144
Compatibility check to other ESD/DCS systems on request.
Connection
I
II
Zone 0, 1, 2
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
Pepperl+Fuchs Group
USA: +1 330 486 0002
www.pepperl-fuchs.com
pa-info@us.pepperl-fuchs.com
SL2
1.5 kΩ
+
1
5a
10 kΩ
-
4
5b
1.5 kΩ
+
2
1a
10 kΩ
-
5
1b
Termination Board
Germany: +49 621 776 2222
pa-info@de.pepperl-fuchs.com
Assembly
Front view
Switch 1 ... 4
HiC2832R1
SL1
8a
11
+
-
7a
14
10a
12
+
-
9a
15
-
1a, 1b
+
2a, 2b
6b
Singapore: +65 6779 9091
pa-info@sg.pepperl-fuchs.com
HiC2832R1
LED green:
Power supply
PWR
LED yellow/red:
CH 1
Status output/
CH 2
Fault channel 1
STATUS/
FAULT
LED yellow/red:
Status output/
HiC
Fault channel 2
2832
R1
Place for
labeling
2
I
II
24 V DC
FAULT
1