Danfoss FC 301

Cable lengths and cross-sections:
Max. motor cable length, shielded
FC 301: 164 ft. [50 m] / FC 301 (A1-encl.): 82 ft [25 m] / FC
302: 492 ft [150 m]
Max. motor cable length, unshielded
FC 301: 246 ft. [75 m] / FC 301 (A1-encl.): 82 ft [25 m]/
FC 302: 984 ft [300 m]
Max. cross-section to motor, line power, load sharing and brake,
(0.33-10 hp [0.25 kW-7.5 kW])
0.0062 in.
2
[4 mm
2
] / 10 AWG
Max. cross section to motor, line power, load sharing and brake,
(15-20 hp [11-15 kW])
0.025 in.
2
[16 mm
2
] / 6 AWG
Max. cross-section to motor, line power, load sharing and brake,
(25-30 hp [18.5-22 kW])
0.054 in.
2
[35 mm
2
] / 2 AWG
Maximum cross-section to control terminals, flexible/rigid wire
without cable end sleeves
0.0023 in.
2
[1.5 mm
2
]/16 AWG
Maximum cross-section to control terminals, flexible wire with ca-
ble end sleeves
0.0016 in.
2
[1 mm
2
]/18 AWG
Maximum cross-section to control terminals, flexible wire with
cable end sleeves with collar
0.00078 in.
2
[0.5 mm
2
]/20 AWG
Minimum cross-section to control terminals 0.0039 in.
2
[0.25 mm
2
]/24 AWG
For more information, see section Electrical Data in the FC 300 Design Guide, MG.33.BX.YY.
Control card performance:
Scan interval FC 301: 5 ms / FC 302: 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
VLT
®
AutomationDrive FC 300 Instruction
Manual
5. General Specifications
MG.33.A9.22 - VLT is a registered Danfoss trademark 85
5