Pepperl+Fuchs
321420
KCD2-SCD-1
Pepperl+Fuchs 321420
KCD2-SCD-1
SMART Current Driver
Description
1-channel signal conditioner, 24 V DC supply (Power Rail), Current output up to 650 Ω load, HART I/P and valve positioner, Lead breakage monitoring, Accuracy 0.1 %, Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Transfer direction: to the fieldpa. 1-channel signal conditioner, 24 V DC supply (Power Rail), Current output up to 900 Ω load, HART I/P and valve positioner, Lead breakage monitoring, Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Transfer direction: to the fieldpa. This signal conditioner provides the galvanic isolation between field circuits and control circuits. The device repeats the input signal from a control system to drive SMART I/P converters, electrical valves, and positioners located on the field side. Digital signals are superimposed on the analog values at the field side or control side and are transferred bi-directionally. The current is transferred via a DC/DC converter and repeated at the output terminals. An open field circuit presents a high impedance to the control side to allow alarm conditions to be monitored by the control system. Test sockets for the connection of HART communicators are integrated into the terminals of the device.
Technical parameters
| Signal type: | Analog output |
| Safety Integrity Level (SIL): | SIL 2 |
| Connection: | Power Rail or terminals 9+, 10- |
| Rated voltage: | 19 ... 30 V DC |
| Ripple: | ≤ 10 % |
| Rated current: | ≤ 30 mA |
| Power dissipation: | ≤ 600 mW at 20 mA and 500 Ω load |
| Power consumption: | ≤ 700 mW |
| Connection side: | control side |
| Connection: | terminals 5-, 6+ |
| Input signal: | 4 ... 20 mA , limited to approx. 26 mA |
| Input voltage: | depending on switch configuration open loop voltage of the control system < 23 V open loop voltage of the control system < 27 V |
| Voltage drop: | approx. 6 V at 20 mA |
| Input resistance: | > 100 kΩ, with field wiring open |
| Connection side: | field side |
| Connection: | terminals 1+, 2- |
| Current: | 4 ... 20 mA |
| Current: | 4 ... 20 mA |
| Voltage: | ≥ 13 V at 20 mA |
| Ripple: | 20 mV rms |
| Accuracy: | 0.1 % |
| : Influence of ambient temperature: | < 2 µA/K (-20 ... 70 °C (-4 ... 158 °F)); < 4 µA/K (-40 ... -20 °C (-40 ... -4 °F)) |
| : Influence of ambient temperature: | < 2 µA/K (0 ... 60 °C (32 ... 140 °F)); < 4 µA/K (-20 ... 0 °C (-4 ... 32 °F)) |
| Frequency range: | bandwidth at 0.5 Vss signal 0 ... 3 kHz (-3 dB) |
| Rise time: | 10 to 90 % ≤ 100 ms |
| Input/power supply: | basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Output/power supply: | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Display elements: | LED |
| Display elements: | LED |
| Control elements: | DIP-switch |
| Configuration: | via DIP switches |
| Degree of protection: | IEC 60529 |
| Electromagnetic compatibility: Directive 2014/30/EU: | EN 61326-1:2013 (industrial locations) |
| Degree of protection: | IP20 |
| Degree of protection: | IEC 60529 |
| Ambient temperature: | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of protection: | IP20 |
| Connection: | screw terminals |
| Mass: | approx. 100 g |
| Optional accessories: | - power feed module KFD2-EB2(.R4A.B)(.SP) - universal power rail UPR-03(-M)(-S) - profile rail K-DUCT-GY(-UPR-03) |
| Mounting: | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Supplementary information: | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Optional accessories: | - power feed module KFD2-EB2(.R4A.B)(.SP) - universal power rail UPR-03(-M)(-S) - profile rail K-DUCT-GY(-UPR-03) |
Logistic parameters
| ECCN: | |
| Country of Origin: | SG |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |