Danfoss FC 300 Operating Instructions Manual page 30

FC 300 Operating Instructions
Galvanic Isolation In the MCB 101
Digital/analog inputs are galvanically isolated from other inputs/outputs on the MCB 101 and in the
control card of the drive. Digital/analog outputs in the MCB 101 are galvanically isolated from other
inputs/outputs on the MCB 101, but not from these on the control card of the drive.
Principle Diagram
Digital inputs - Terminal X30/1-4
Parameters for set-up: 5-16, 5-17 and 5-18
Number of Voltage
digital inputs level
3 0-24 V DC
30
How to Install
Voltage levels
PNP type:
Common = 0 V
Logic "0": Input < 5 V DC
Logic "0": Input > 10 V DC
NPN type:
Common = 24 V
Logic "0": Input > 19 V DC
Logic "0": Input < 14 V DC
MG.33.A5.02 - VLT is a registered Danfoss trademark
Input impedance Max. load
Approx. 5 K ohm ± 28 V continuous
± 37 V in minimum 10 sec.