Efficiency And Cooling - ABB ACS 601 Hardware Manual

Appendix A – ACS/ACC/ACP 601 Technical Data

Efficiency and Cooling

A-12 ACx=ACS/ACC/ACP
U : Rated motor voltage; f
Nmotor
Scalar Control mode (not for ACP 600): 0 to 300 Hz
With du/dt Filter (DTC and Scalar Control modes): 0 to 120 Hz
Frequency Resolution: 0.01 Hz
Continuous Current: 1.0 · I
Short Term Overload Capacity (1 min/10 min): I
Peak Overload Capacity (2 s/15 s):
1.5 · I (400 and 500 VAC units)
2N
2.0 · I (400 and 500 VAC units)
2hd
1.5 · I
(690 VAC units)
2hd
1.0 · I
NSQ
Power Limit: 1.5 · P
hd
Overcurrent Trip: 3.5 · I
Field Weakening Point: 8 to 300 Hz
Switching Frequency: 3 kHz (average). In 690 V units 2 kHz
(average).
Maximum Recommended Motor Cable Length: 300 m (980 ft.). This
is the cumulative length in case of parallel connected motors. For ACx
601-0005-3 to ACx 601-0016-3, ACx 601-0006-5 to ACx 601-0020-5,
ACx 601-0009-6 to ACx 601-0020-6, if the motor cable length exceeds
70 meters (230 ft.), an ABB representative should be consulted.
Bearings of motors larger than 90 kW (125 Hp): Insulated bearing at
non-driven end is recommended.
Efficiency: Approximately 98 % at nominal power level
Cooling Method: Internal fan, flow direction from the bottom to the top
: Rated motor frequency
Nmotor
(normal use)
2N
1.0 · I (heavy-duty use)
2hd
2hd
ACS/ACC/ACP 601 Drives
= 1.1 · I
2Nmax 2N
I = 1.5 · I
2hdmax 2hd