How To Install - Danfoss FC 300 Interbus Operating Instructions Manual

FC 300 Interbus Operating Instructions
The RS-485 termination switch on the FC 300 (BUS-TER.) must be set to "ON".
Interbus option
X22-1
X22-2
X22-3
X22-4
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
RS-485
FC 302
61 (RS 485 com)
68 (RS 485 +)
69 (RS 485 -)
chassis on FC 300
X23: Power supply
Voltage level: 24 V dc ± 15%
Current consumption: max. 160 mA ex-
cluding load on digital outputs.
MG.33.H3.02 - VLT is a registered Danfoss trademark

3. How to Install

X24+25: Digital I/O
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
3
9