اسپید مانیتور KFD2-DWB-1.D

Rotation Speed Monitor KFD2-DWB-1.D

• 1-channel signal conditioner
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Input frequency 1 mHz ... 12 kHz
• 2 relay contact outputs
• Start-up override
• Configurable by keypad
• Line fault detection (LFD)
• Up to SIL 2 acc. to IEC 61508/IEC 61511

Function
This signal conditioner monitors for an overspeed or
underspeed condition of a digital signal (NAMUR
sensor/mechanical contact) by comparing the input frequency
to the user programmed reference frequency.
An overspeed or underspeed condition is signaled via the
relay outputs. Line fault detection of the field circuit is indicated
by a red LED, Power Rail and relay. The startup override
feature sets relay outputs to default conditions programmed
by the user for up to 1,000 seconds.
The unit is easily programmed by the use of a keypad located
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 the manual and
www.pepperl-fuchs.com.