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SD350/800 Sealed VFD

This SD350/800 sealed VFD is enhanced version of AD800 series frequency inverter, built in with IP54 protection grade. All the components are sealed, not are exposed outside, the water proof fans is very good at for out door using for heat dissipating.

With excellent in anti-dust, water proof, anti-grease and anti-corrosion properties, the SD800 sealed inverter is widely used in printing and dyeing, textile, cement, coal, ceramics industries and other harsh industrial conditions with heavy dust, moisture and high temperature, also extend the service life time.


Specification, voltage rating, power rating

220V (single-phase power) 0.4-2.2kW

380V (three-phase power) 0.75-30kW


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Key product features.

● Adopt the same hardware design and configuration as AD350 and AD800's VFD.

● High performance flux vector control for IM and PMSM

● Excellent quick response with vector control

● High starting torque even under low speed.

● Torque limit for machine safety protection

● Rapid current limit, up to 20 kinds protection function.

● Latest generation Infineon IGBT modules using


Outstanding motor control performance

● Torque respond speed ≤5ms in OLV without PG

● Wide input voltage range, and work above 45℃ is available

● Outstanding overload capacity, 150% rated current for 60s, 180% rated current for 3s, 200% rated current for instantaneous.

● Speed range 1:100 (SFVC), 1:1000 (CLVC)

● Startup torque, G type: 0.5 Hz/150% (SFVC); 0 Hz/180% (CLVC), P type: 0.5 Hz/100%

● Torque control accuracy, ± 5% (CLVC)


Hardware enhanced features.

● 1. Ti 's 32 bit DSP ( 28034/35), Germany Infineon intelligent modules;

● 2. Sealed cabinet, conformal coating on PCB;

● 3. Adopt using aviation plugs that have good quality water proof, gas and oil proof. (options)

● 4. Imported high-speed ventilation fan with 24V DC power supply, good cooling effect;

● 5. Lower failure rate and long service lift



ItemsSpecification
Control modeControl modeSVC in open loopV/F controlClose loop vector control
Starting torque0.5Hz 180%0.5Hz 150%0.00Hz 180%
Speed adjust range1:1001:1001:1000
speed stabilizing

±0.02%
precision
Torque precisionNONO±5%
Motor typeGeneral induction motor,permanent magnet synchronous motor*
Functin designHighest frequencyGeneral vector control :400Hz  V/f control:4000Hz
frequency resolutionDigital setting: 0.01Hz  analog setting: maximum×0.025%
carrier frequency0.5K~16KHz, the carrier frequency can be adjust by temperature automatically
Frequency reference setting methodDigital of Control panel, analog AI1, AI2, potentiometer of control panel, UP/DN control, communication, PLC pulse frequency
Accel./decel. characteristicLinear curve and S curve accel. /decel. mode, range of time: 0.0 to 65000S.
V/F curve3 mode: linear, multiple points, N Power
V/F separation2 times separation: totally separation, half separation
DC brakingDC braking frequency: 0.0 to 300Hz, DC braking current: 0.0% to 100%
Braking unitBuilt in braking unit up to 15kw, optional is 18.5kw to 75kw, external built in for above 93kw.
Jog functionJob frequency range: 0.0 to 50.0Hz, the accel. and decel. time of Jog
Configuration PIDEasy to perform pressure, flow, temperature close loop control
PLC  multiple speedTo achieve 16 segment speed running through built in PLC or terminal control
Common Dc bus *Multiple inverters use one DC bus for energy balance.
Auto voltage regulation (AVR)Enable to keep output voltage constant when grid fluctuation
Over load tolerance capabilityG type model: 150% rated current for 60s, 180% rated current for 2s,
P type Model: 120% rated current for 60s, 150% rated current for 3s.
tall control when over current, over voltageCarry out limiting automation for running current, voltage to prevent over current, over voltage frequently
Fast current limit functionminimize the IGBT module broken to protect the inverter, maximum reduce the over current fault.
Torque limit and torque control"Excavator" characteristics , torque limit automatically during motor running. Torque control is available in close loop vector control mode.
featuresfriendly interfaceDisplay Hello when power on.
Multiple function key JOG buttonIt can set for Forward Jog, reverse Jog, forward/reverse switch
Timing control functionA total running time and total running time calculating
2 group motor parametersTo achieve two motor switching freely, control mode is selectable
Motor over heat protectionAccepting motor temperature sensor signal input via AI1 terminals.
Multiple kinds encoder *Compatible collector, difference, and rotary transformer Encoder.
Command sourceControl panel, control terminals, series communication, switch freely.
Frequency sourceDigital setting, analog current/voltage, pulse setting, serial communication, main and auxiliary combination.
Protection functionShort circuit detect after power on, input/output phase missing, over voltage, over current, under voltage, over heat, over load protection.
EnvironmentApplication siteIndoor, free of exposure to sunlight, no dusty, no corrosive, no inflammable gas, no oil and water vapor, and water dipping
AltitudeLower 1000m
environment temperature-10℃~+40℃, power derate for 40~50℃, rated current derated 1% for 1℃increasing.
humidityLess than 95%, no water condense.
storage-40~+70℃



ModelsPowerL1W1D1L2W2L3D2SLOT HOLE
External sizeInstall size 1Install size 2
SD800-4T0.7/3.7GB0.75-3.7kw,380V23013017721590215140M5
SD800-4T5.5/7.5GB5.5-7.5KW,380V320180210305120305170M5
SD800-4T11.0/15GB11-15kw, 380V390230225375160375180M6
SD800-18.5/22/30G18.5-30kw, 380V430230225375160375180M6





Wiring diagram of SD800. ( the same as AD800 series)

● It has 5 digital I/O input, compatible sink and source way. (PNP an NPN)

● 2 Analog input, support -10V to 10V, 0-10V, 0/4 to 20mA.

● 1 Analog output ( 0-10V/0-20mA is selectable)

● 2 collector output ( FM and CME support the high pulse output).

● 1 relay output.

● Extension PG, I/O card are available.

SD350/800 Sealed VFD

SD800 Sealed frequency inverter external and installation dimension

SD350/800 Sealed VFD

Metal processing, CNC tooling machine, cable drawing machine.

Boiler air blower, induced draft fan, exhaust fan

municipal Construction , HVAC

circulating water pump, Fill pump, fuel delivery pump

Paper making equipment, chemical industry, pharmaceutical industry, textile industry