Danfoss FC 300 Interbus Instructions d'exploitation télécharger pdf (Page 9)

The RS-485 termination switch on the FC 300 (BUS-TER.) must be set to “ON”.

Interbus option FC 302

X22-1 61 (RS 485 com)

X22-2 68 (RS 485 +)

X22-3 69 (RS 485 -)

X22-4 chassis on FC 300

NB!

Grounding of the Interbus option is mandatory and can be achieved in several ways:

- Via the DIN-rail

- Via the connections X23-4 or X22-4

3.3.2. I/O Specifications

X22: FC-bus X23: Power supply X24+25: Digital I/O

RS-485 Voltage level: 24 V dc ± 15%

Current consumption: max. 160 mA ex-

cluding load on digital outputs.

Digital inputs:

Voltage level: 0-24 V DC

Voltage level, logic “0”:< 5 V DC

Voltage level, logic “1”:> 9 V DC

Maximum input voltage: 28 V DC

Minimum input voltage: -28 V DC

Frequency range: DC to 250 Hz

Duty cycle min. pulse width: 2 ms

Input resistance: approx. 4 kΩ

Digital outputs:

Voltage level: 0-24 V DC (open collector

PNP) short-circuit protected.

Maximum output current: 25 mA

FC 300 Interbus Operating Instructions 3. How to Install

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Danfoss FC 300 Interbus Instructions d'exploitation Page 9