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LD350 series General vector inverter

LD350 general pupose inverter is a highly efficient and reliable motor drive, suitable for various industrial applications. It features premium-quality, renowned brand components and a modular design for easy installation and maintenance. Supporting multiple motor types including permanent magnet synchronous motors and asychonous motors, it is compatible with 1ph/3ph 220V and 3ph 380V power supplies at 50/60Hz, with a power range from 0.75kW to 400kW.

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Frequency Converter

Feature

Specifications

Characteristic Parameter

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High Quality Design

Wide Voltage Design in line with International Standards

Various EMC Specifications and Solutions
Complete DC Braking Circuit Solution
Long Life Design
Independent Air Duct Design
International IEC Standard Design

Excellent Performance

Good Voltage and Current Control

Overvoltage Stall&Overcurrent Stall

Excellent Parameter Self-learning Function

It can accurately perform self-learning of rotating or static motor parameters, is easy to debug, simple to operate, and providing higher control accuracy and response speed.

Multi-point Voltage and Flux Setting Function

LD350

LD350()S2	0R7	1R5	2R2	4R0	5R5	7R5
KW	0.75	1.5	2.2	4	5.5	7.5
Frame size	A		B		C

LD350()T4	0R7	1R5	2R2	4R0	5R5	7R5	011	015	018	022
KW	0.75	1.5	2.2	4	5.5	7.5	11	15	18.5	22
Frame size	A				B		C		D

LD350()T4	030	037	045	055	075	090	110	132	160	185	200
KW	30	37	45	55	75	90	110	132	160	185	200
Frame size	E		F		G	H

220V
Frame size		A		B		C
Type 1D250- S2B		0R7	1R5	2R2	4R0	5R5	7R5
Applicable motor power KW		0.75	1.5	2.2	4	5.5	7.5
Applicable motor horsepower HP		1	2	3	5	7.5	10
output	Rated output capacity KVA	1.9	2.5	4.2	6.5	9.5	12.5
	Rated output current A	4	7	9.6	17	25	30
	Output freauency Hz	0.01--400Hz
	Carrier frequency range KHz	1--16KHz
	Overload capacity	150% of rated output current, can withstand 60S
		200% of rated output current, can withstand 3S
input 220V	Inpul current A	7	9.4	14	21	26	31
	Iput voltage frequenc	single phase220V,50/60Hz
	Permissible voltage fluctuations	(-15%--+15%)
Cooling system		Forced cold air
Brake unit		built-in

380V
Frame size		A				B		C
Type LD350- T4B		0R7	1R5	2R2	4R0	5R5	7R5	011	015
Applicable motor power KW		0.75	1.5	2.2	4	5.5	7.5	11	15
Applicable motor horsepower HP		1	2	3	5	7.5	10	15	20
output	Rated output capacity KVA	2.3	3.2	4.2	6.5	9.9	13.7	18.3	24.4
	Deted wdrwt eawrenl A	2.1	3.8	5.1	9.0	13	17	25	32
	Output frequency Hz	0.01--400Hz
	Carrier frequency range KHz	1--16KHz
	Overload capacity	150% of rated output current, can withstand 60S
	Overload capacity	200% of rated output current, can withstand 3S
input	Input current A	3.2	4.3	5.9	11.2	14	29	25	32
	Input voltage frequency	three-phase 380V,50/60Hz
	Permissible voltage fluctuations	(-15%--+15%)
Codling system		Forced cold air
Brake uni		built-in

380V
Frame size		D		E		F		G	H			I
Type LD350- T4B		018	022	030	037	045	055	075	090	110	132	160	185	200
Applicable motor power kW		18.5	22	30	37	45	55	75	90	110	132	160	185	200
Applicable motor horsepower HP		25	30	40	50	60	75	100	125	150	176	215	250	275
output	Rated output capacity KVA	29	43	46	56	69	84	114	143	175	200	300	282	310
	Rated output current A	37	45	60	75	90	110	152	176	210	253	304	345	380
	Output frequency Hz	0.01--400Hz
	Carrier frequency range KHz	1--16KHz
	Overload capacity	150% of rated output current, can withstand 60S
	Overload capacity	200% of rated output current, can withstand 3S
input	Input currontA	50	54	58	70	90	105	140	165	200	240	290	330	370
	Input voltage frequency	three-phase 380V.50/60Hz
	Permissible voltage fluctuations	(-15%--+15%)
Cooling system		Forced cold air

characteristic parameter
	project		specifications
	IN-OUT	analog input	2-way/voltage current signal switchable, voltage 0-10V,current 0-20mA
		Digital input	5 channels/optocoupler isolation, including 1 high-speed pulse input, with a maxinum input pulse frequency of up to 100KHz
		analog output	2 channels/voltage output range 1-10V, current output range 0-20mA, output signal type can be switched
		Digital output	2-way/optocoupler isolation/open collector output/rated current 20mA (DO, HDO)
		Digital pulse output	2 channels/optocoupler isolation/open collector pulse (frequency or PWM) output (DO, HDO), including1 channel of high-speed pulse output, the maximum output pulse frequency can reach 100KHz
		relay output	2-way/Normally Open and Normally Closed Contact/250VAC-3A
		communication mode	Standard MODBUS-485 communication protocol
	control characteristic	control mode	V/F control; PG free vector control (SVC)
		Frequency setting mode	Multple setting methods such as keyboard setting, analog quantity seting, pulse setting, communication setting, etc
		Freduency control range	0.01-400.00Hz
		Frequency control accuracy	Digital setting: 0.01Hz; Analog setting: maximum frequency x 0.025%
		speed range	1:200(SVC); 1:1000(FVC)
		Steady range	±0.5%(SVC);±0.02%(FVC)
		Acceleration and deceleration time	1.0-3600.0 seconds (acceleration and deceleration times can be set separately, and S characteristics can be switched)
		Inching control	Point frequency range: 0.00Hz-100.00Hz; Point acceleration time: 0.0s-3600s
		Starting torque	0.5Hz 150%(SVC) adjustable, considering the capacity of the frequency converter; 3.0Hz 100%(V/F)
		Torque boost	Automatic torque increase; Adjustable manual torque increase of 0.1%-30.0%
		braking torque	Braking resistance braking (125%), DC braking (20%)
		DC braking	Braking time: 0.0s-36.0s; Braking current: 0.0%-100.0%
		timing control	Timing range: 0.0min-6500min
		Pid control	Built in PIO function for convenient closed-loop control of processes
		V over F curve	Linear, multi-point custom curve, 1.1-2.0 arbitrary descent curve
		Multi stage speed control	Buit-in simple PLC can control the maximum 16 speed frequency logic
		Carrier adjustable	Adjustable from 1.0 to 16.0kHz, adjustable according to module temperature
		Frequency setting signal	-10-+10,0-+10,4-20mA, high-frequency pulse, PWM pulse
	protection function	Overload capacity	G:150% 60s 200% 3s
		Instantaneous overcurrent /short circuit protection	Automatically cut off output when the rated output current exceeds 200%
		Overyoltage/secondary voltage protection	When the DC voltage of the bus is too low (360V) or too high (800V), the motor stops freely (except during braking)
		Phase loss protection	When there is a phase loss at the input or output end, the motor stops freely
		Overheat protection	When the radiator temperature is ≥85 ℃, the motor stops freely; The temperature protection threshold can be freely set according to the ambient temperature
		motor protection	Analog input can be connected to temperature sensor inputs (PT100,PT000) to achieve motor overheating protection
		Stall protection	Using current sensors to detect stall prevention during acceleration and deceleration, and stall prevention during operation (acion current can be set)
		ground protection	Using current sensors for detection
		Instant stop	By compensating for voltage reduction through load feedback energy, the frequency converter can maintain continuous operation for a short period of time
	specifications stucture	Rated input	voltage:1/3PH 220V±20%;3PH 380V±20%;frequency:50Hz/60Hz±5%
		Cooling and protection	≤18.5kW:IP20;>18.5kW:1IP10;Forced air cooling
		Usage environment	Temp:-10℃-+40℃ altitude: Not higher than 1000m; Indoor,without corrosive gases
		Save Environment	Temp:-20℃-+65℃ humidity: 20-90%RH(No condensation)The vibration is less than 6m/S squared(0.6g)