Tabla de contenido
Publicidad
Idiomas disponibles
Idiomas disponibles
Standstill and Rotational Direction Monitor
Features
• 2-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Selectable frequency trip values
• 2 relay contact outputs
• Start-up override
• Selectable mode of operation
• Line fault detection (LFD)
• Up to SIL 2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications. It
is a zero speed/standstill monitor that accepts input frequency
pulses and triggers an output when the frequency drops below
a selected value.
Two startup override values are available. This unit can also
be used to determine rotation direction.
During an error condition, relays revert to their de-energized
state and LEDs indicate the fault according to NAMUR NE44.
The available diagnostic LEDs show rotation detection, limit
trip indicator, power on, and hardware error indication.
The unit is easily programmed via switches mounted on the
front of the unit.
A unique collective error messaging feature is available when
used with the Power Rail system.
For additional information, refer to www.pepperl-fuchs.com.
Connection
I
II
Zone 0, 1, 2
Div. 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
1+
2+
10 kΩ
10 kΩ
3-
400 Ω ≤ R ≤ 2 kΩ
4+
10 kΩ
5+
10 kΩ
6-
400 Ω ≤ R ≤ 2 kΩ
Germany: +49 621 776 2222
pa-info@de.pepperl-fuchs.com
Assembly
Front view
KFD2-SR2-Ex2.W.SM
1
OUT CHK PWR
LED yellow:
2
Relay output I
S1
S2
S3
LED yellow:
Relay output II
LEDs flashing red:
10
13
Error
KFD2-SR2-Ex2.W.SM
ERR
24 V DC
Power Rail
Singapore: +65 6779 9091
pa-info@sg.pepperl-fuchs.com
KFD2-SR2-Ex2.W.SM
Removable terminals
blue
1
2
3
4
5
6
LED green:
Power supply
Switch S1:
Trip value frequency
I
II
Switch S2:
Trip value frequency
7
8
9
Switch S3:
11
12
14
15
Start-up override/
Rotation direction detection
Removable terminals
green
2
7
8
I
9
10
11
II
12
14+
24 V DC
15-
Zone 2
Div. 2
1
Publicidad
Tabla de contenido
