The USB connection is galvanically isolated from the supply voltage (PELV) and other high-volt-
age terminals.
The USB ground connection is not galvanically isolated from protection earth. Use only an isolated
laptop as PC connection to the USB connector on the frequency converter.
Relay outputs:
Programmable relay outputs
2
Relay 01 Terminal number
1-3 (break), 1-2 (make)
Max. terminal load (AC-1)
1)
on 1-3 (NC), 1-2 (NO) (Resistive load)
240 V AC, 2 A
Max. terminal load (AC-15)
1)
(Inductive load @ cos
φ
0.4)
240 V AC, 0.2 A
Max. terminal load (DC-1)
1)
on 1-2 (NO), 1-3 (NC) (Resistive load)
60 V DC, 1A
Max. terminal load (DC-13)
1)
(Inductive load)
24 V DC, 0.1A
Relay 02 (FC 302 only) Terminal number
4-6 (break), 4-5 (make)
Max. terminal load (AC-1)
1)
on 4-5 (NO) (Resistive load)
400 V AC, 2 A
Max. terminal load (AC-15)
1)
on 4-5 (NO) (Inductive load @ cos
φ
0.4)
240 V AC, 0.2 A
Max. terminal load (DC-1)
1)
on 4-5 (NO) (Resistive load)
80 V DC, 2 A
Max. terminal load (DC-13)
1)
on 4-5 (NO) (Inductive load)
24 V DC, 0.1A
Max. terminal load (AC-1)
1)
on 4-6 (NC) (Resistive load)
240 V AC, 2 A
Max. terminal load (AC-15)
1)
on 4-6 (NC) (Inductive load @ cos
φ
0.4)
240 V AC, 0.2A
Max. terminal load (DC-1)
1)
on 4-6 (NC) (Resistive load)
50 V DC, 2 A
Max. terminal load (DC-13)
1)
on 4-6 (NC) (Inductive load)
24 V DC, 0.1 A
Min. terminal load on 1-3 (NC), 1-2 (NO), 4-6 (NC), 4-5 (NO)
24 V DC 10 mA, 24 V AC 20 mA
Environment according to EN 60664-1
over-voltage category III/pollution degree 2
1) IEC 60947 part 4 and 5
The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation
(PELV).
Cable lengths and cross sections:
Max. motor cable length, screened/armoured
150 m
Max. motor cable length, unscreened/unarmoured
300 m
Maximum cross section to control terminals, flexible/ rigid wire without cable
end sleeves
1.5 mm
2
/16 AWG
Maximum cross section to control terminals, flexible wire with cable end sleeves 1 mm
2
/18 AWG
Maximum cross section to control terminals, flexible wire with cable end
sleeves with collar
0.5 mm
2
/20 AWG
Minimum cross section to control terminals
0.25 mm
2
/ 24 AWG
Control card performance:
Scan interval
1 ms
Control characteristics:
Resolution of output frequency at 0 - 1000 Hz
+/- 0.003 Hz
Repeat accuracy of
Precise start/stop
(terminals 18, 19)
≤
± 0.1 msec
System response time (terminals 18, 19, 27, 29, 32, 33)
≤
2 ms
Speed control range (open loop)
1:100 of synchronous speed
Speed control range (closed loop)
1:1000 of synchronous speed
Speed accuracy (open loop)
30 - 4000 rpm: error ±8 rpm
Speed accuracy (closed loop), depending on resolution of feed-
back device
0 - 6000 rpm: error ±0.15 rpm
All control characteristics are based on a 4-pole asynchronous motor
5. General Specifications
VLT
®
Automation Drive FC 300
Operating Instructions High Power
110
MG.33.U1.02 - VLT
®
is a registered Danfoss trademark
5
