Danfoss VLT AutomationDrive FC 300 Design Manual page 57

FC 300 Design Guide
Cable lengths and RFI performance
FC 30x Filter
FC 301 With A2 filter
FC 302
FC 301 With A1/B
FC 302 With A1/B
FC 302 No RFI filter
In certain instances, shorten the motor cable to comply with EN 55011 A1 and EN 55011 B.
Copper (140/167°F, 60/75°C) conductors recommended.
Aluminum conductors
Aluminum conductors are not recommended. Terminals can accept aluminum conductors but
the conductor surface must be clean and the oxidation must be removed and sealed by neutral
acid-free Vaseline grease before the conductor is connected.
Furthermore, the terminal screw must be retightened after two days due to the softness of the aluminum. It
is crucial to keep the connection a gas-tight joint, otherwise the aluminum surface will oxidize again.
Digital inputs:
Programmable digital inputs ................................................................... FC 301: 4 (5) / FC 302: 4 (6)
Terminal number ....................................................................................... 18, 19, 27
Logic ............................................................................................................................ PNP or NPN
Voltage level .................................................................................................................. 0 - 24 V DC
Voltage level, logic'0' PNP ................................................................................................... < 5 V DC
Voltage level, logic'1' PNP ................................................................................................. > 10 V DC
Voltage level, logic '0' NPN
Voltage level, logic '1' NPN
Maximum voltage on input ................................................................................................... 28 V DC
Input resistance, R ...................................................................................................... approx. 4 kΩ
i
Safe stop Terminal 37
Terminal 37 is fixed PNP logic
Voltage level .................................................................................................................. 0 - 24 V DC
Voltage level, logic'0' PNP .................................................................................................... < 4 V DC
Voltage level, logic'1' PNP ................................................................................................... >15 V DC
Nominal input current at 24 V ........................................................................................... 50 mA rms
Nominal input current at 15 V ........................................................................................... 80 mA rms
Input capacitance .................................................................................................................. 400 nF
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
2) Except safe stop input Terminal 37.
3) Terminal 37 is only available in FC 302. It can only be used as safe stop input. Terminal 37 is suitable
for category 3 installations according to EN 954-1 (safe stop according to category 0 EN 60204-1) as
required by the EU Machinery Directive 98/37/EC. Terminal 37 and the Safe Stop function are designed in
Introduction to FC 300
Supply voltage
200 - 240 V / 380 - 500 V /
380 - 480 V
200 - 240 V / 380 - 480 V
200 - 240 V / 380 - 500 V
550 - 600 V
2) ............................................................................................ > 19 V DC
2) ............................................................................................. < 14 V DC
2) :
MG.33.B3.22 - VLT is a registered Danfoss trademark
RFI compliance at max. motor cable lengths
<16 ft (5 m) EN 55011 Group A2
<131 ft (40 m) EN 55011 Group A1
<33 ft (10 m) EN 55011 Group B
<492 ft (150 m) EN 55011 Group A1
<131 ft (40 m) EN 55011 Group B
Not compliant with EN 55011
1) , 29 1) , 32, 33,
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