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Harbor Crane 4-Quadrant Inverter

AS700 harbor crane 4-quadrant inverter comes with compact structure, and is equipped with an energy regenerative power supply unit which allows the energy generated during braking process to be fed back into the power grid. So, it is very energy saving and requires little installation space. Requiring no external braking resistor, the harbor crane 4-quadrant inverter is easy for installation.
The energy regenerative power supply unit allows the harbor crane 4-quadrant inverter to work in either motor drive mode or power generation mode, and the switch between the two working modes is very fast because of the vector control technology. The vector controlled energy regenerative power supply unit can even compensate the instantaneous voltage fluctuation for power grid. Hence, the harbor crane inverter can protect equipment from damage and protect the fuse wire from broken, when there is voltage fluctuation in power supply system.
The 4-quadrant inverter is designed for different types of harbor cranes, including gantry cranes, container crane, and various other types of cargo cranes. It can also be used in process control fields, for instance, in paper making, metallurgy, mining, cement production, chemical, natural gas, petroleum, and more industries. The harbor crane 4-quadrant inverter is customizable. It is characterized by wide power and voltage range, and is programmable, so it is able to meet diversified application demands.

Technical Specifications of the Harbor Crane 4-Quadrant Inverter

Power supply	Voltage and power range	3-phase U3N: 380-415VAC [-10%...+10%] 3-phase U5N: 380-500VAC [-10%...+10%] 3-phase U7N: 520-690VAC [-10%...+10%]
	Input frequency	45...66Hz
	Connection frequency	1 time per minute or less
	Power factor	Cosφ1=1( fundamental wave) Cosφ=0.99(all)
	Efficiency (rated power)	AS700-01 98% AS700-x02 98% 97% (IGBT power supply unit)
Operation environment	Operation environment	-10℃ [no condensing] ...+40℃
	Storage temperature	-40℃ ...+70℃
	Transportation temperature	-40℃ ...+70℃
	Relative humidity	5~95%RH, no condensing, no corrosive substances and water drops
	Cooling method	Dry clean air
	Storage environment	IEC60721-3-1, Class 1C2 (chemical gas), Class 1S2 (solid particle)
	Transportation environment	IEC60721-3-2 ,Class 2C2(chemical gas), Class 2S2(solid particle)
	Operation environment	IEC60721-3-3, Class 3C1/3C2(chemical gas), Class 3S2 (solid particle) C= chemical active substances, S= mechanical active substances, coated circuit board
	Altitude	Max.1000m (include), 100% load [no derating] 1000~4000m or above, every 100m increase in altitude requires 1% derating
	Shock resistance EN50178/EN60068-2-6	3-30HZ: amplitude 1mm (peak) 30-150HZ: the maximum acceleration is 1G
	Protection class	IP21
Standard	CE, Low voltage directive 73/23/EEC, including amending clause 93/68/EEC; Mechanical directive 98/37/EC; EMC clause 89/336/EEC, including amending clause 93/68/EEC; ISO 9001 and ISO 14001
Control system connections	Analog input voltage	2 groups, 0~ +10V (or-10V~+10V, handle control), Ri=200kΩ, resolution: 0.1%, precision: ±1%
	Analog input current	0(4)…20mA, Ri=250Ω differential
	Digital input	8-bit, positive or negative logic: 18~30VDC
	Auxiliary voltage	DC24V,±15%, maximally 250mA
	Output reference voltage	±10V,±3%, maximally 10mA
	Analog output	2 groups, 0 (4) ~20mA, Ri = 500Ω maximally, resolution: 10 bits, precision:±2%
	Relay output	3 programmable transfer relay output; switching capacity: 24VDC/8A,250VAC/8A,125VDC/0.4A; Minimum switching load: 5V/10mA
Control characteristics	Control method	Speed control + torque control, freely switch between two control modes is allowable
	Starting torque	180% 0Hz (PC card vector control)
	Speed control range	1:1000 (PC card vector control)
	Torque control	Response time: <10ms, at closed-loop nominal torque condition
	Torque control	Torque precision:±5%, at closed-loop nominal torque condition
	Speed control	Static status speed precision: 0.01% of rated speed (closed loop)
	Speed control	Dynamic status speed precision: 2-4ms (closed loop)
	Overload capacity	1.8×rated output current (180% overload), duration: 60s; 2×rated output current (200% overload), duration: 10s
	Carrier frequency	4 ~11kHz
	Load ratio measurement	A weight-measuring sensor is available to adjust the necessary torque on load phase while the brake is released
	High speed lifting	On the condition that the output current is no more than the rated motor current while the motor is in the maximum speed, the crane inverter comes with constant power. Thus, the inverter speed is higher than motor's rated speed.

Power Level

Rated level		No-overload	Slightly-overload		Heavy-overload		Model	Overall dimension
Icon max A	Imax A	Pcon max kW	IN A	PN kW	Ihd A	Phd kW	Model	Overall dimension
UN=400V (380~415V, power value is effective at rated voltage 400V)
120	168	55	114	55	88	45	AS700-04-0055-3	S2
150	234	75	142	75	117	55	AS700-04-0075-3	S2
165	264	90	157	90	132	75	AS700-04-0090-3	S2
202	293	110	194	110	151	75	AS700-04-0110-3	S2
250	363	132	240	132	187	90	AS700-04-0132-3	S2
292	400	160	280	160	218	110	AS700-04-0160-3	S3i
370	506	200	355	200	277	132	AS700-04-0200-3	S3i
469	642	250	450	250	351	200	AS700-04-0250-3	S3i
565	773	315	542	315	423	250	AS700-04-0315-3	S3i
704	963	385	675	355	526	315	AS700-04-0385-3	S4i
919	1258	500	882	500	688	355	AS700-04-0500-3	S4i
1111	1521	630	1067	630	831	450	AS700-04-0630-3	2×S3i
1379	1888	800	1324	710	1031	560	AS700-04-0800-3	2×S4i
1535	2102	900	1474	800	1149	630	AS700-04-0900-3	2×S4i
1978	2707	1200	1899	1100	1479	800	AS700-04-1200-3	3×S4i
2610	3573	1600	2506	1400	1953	1100	AS700-04-1600-3	3×S4i
UN=500V(380~500V, power value is effective at rated voltage 500V)
120	168	75	114	75	88	55	AS700-04-0075-5	S2
139	234	90	132	90	114	75	AS700-04-0090-5	S2
156	264	110	148	90	125	75	AS700-04-0110-5	S2
200	291	132	192	132	150	90	AS700-04-0132-5	S2
245	356	160	235	160	183	110	AS700-04-0160-5	S3i
302	438	200	289	200	226	132	AS700-04-0200-5	S3i
365	530	250	350	250	273	160	AS700-04-0250-5	S3i
455	660	315	437	315	340	200	AS700-04-0315-5	S3i
525	762	355	504	355	393	250	AS700-04-0355-5	S4i
595	863	400	571	400	445	315	AS700-04-0400-5	S4i
670	972	500	643	450	501	315	AS700-04-0500-5	S4i
892	1294	630	856	630	667	450	AS700-04-0630-5	2×S3i
1005	1458	710	965	630	752	500	AS700-04-0710-5	2×S4i
1313	1906	900	1261	900	982	710	AS700-04-0900-5	2×S4i
1528	2217	1120	1467	1120	1143	800	AS700-04-1120-5	3×S4i
1884	2734	1400	1809	1300	1409	1000	AS700-04-1400-5	3×S4i
2486	3608	1800	2387	1700	1860	1300	AS700-04-1800-5	4×S4i
UN=700V (525~690V, power value is effective at rated voltage 690V)
132	192	110	127	110	99	90	AS700-04-0110-7	S2
150	218	132	144	132	112	90	AS700-04-0132-7	S2
201	301	200	193	160	150	132	AS700-04-0200-7	S2
279	417	250	268	250	209	200	AS700-04-0250-7	S2
335	502	315	322	250	251	200	AS700-04-0315-7	S3i
382	571	355	367	355	286	250	AS700-04-0355-7	S3i
447	668	450	429	400	334	315	AS700-04-0450-7	S3i
659	985	630	632	630	493	450	AS700-04-0630-7	S3i
729	1091	710	700	710	545	500	AS700-04-0710-7	S4i
876	1310	900	840	800	655	630	AS700-04-0900-7	S4i
1112	1663	1120	1067	1120	831	800	AS700-04-1120-7	S4i
1256	1879	1250	1206	1200	940	900	AS700-04-1250-7	2×S3i
1657	2480	1700	1591	1600	1240	1200	AS700-04-1700-7	2×S4i
2321	3472	2300	2228	2300	1736	1600	AS700-04-2300-7	2×S4i
2460	3680	2500	2362	2400	1840	1800	AS700-04-2500-7	3×S4i

As a professional harbor crane 4-quadrant inverter manufacturer based in China, STEP offers a vast array of products that includes high voltage inverter, elevator group control system, elevator control cabinet, car controller board, and much more.

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