OMRON 3G3SV series book style fully digital low-noise frequency converter

OMRON 3G3SV series book style fully digital low-noise frequency converter

Product basic information

Product Name: OMRON SYSDRIVE 3G3SV Book style All Digital Low Noise Inverter

Voltage level: 200V level (single-phase/three-phase)

Power coverage: 0.2kW/0.4kW/0.75kW/1.5kW/2.2kW/3.7kW

Model rules: 3G3SV Bxx (three-phase), 3G3SV BBxx (single-phase)

Display: 3-digit 7-segment LED, capable of displaying frequency/current/fault codes

Operation mode: External terminal (default), optional digital operator

Installation specifications

Environmental Requirements

Environmental temperature: -10 ℃~+50 ℃

Protection: moisture-proof, dust-proof, corrosion-resistant, no direct sunlight

Installation direction: Vertical installation to ensure heat dissipation

Spacing: at least 120mm up and down, and at least 10mm left and right

Installation dimensions (brief table)

Power segment width, height, and depth

0.2~1.5kW 70~72mm 250mm 174~230mm

2.2~3.7kW 150mm 250mm 230mm

Wiring instructions

1. Main circuit terminal

Terminal function

L1 (R)/L2 (S)/L3 (T) power input (single-phase only connected to L1/L2)

T1 (U)/T2 (V)/T3 (W) output connected to motor

B1/B2 brake resistor connection

G (E) grounding terminal

2. Control circuit terminal (core)

Terminal number function

1. Running/stopping in forward direction

2 Reverse operation/stop

3 External fault inputs

4. Fault reset

5/6 multi-stage speed setting 1/2

11 4~20mA frequency given

13 0~10V frequency given

18 analog frequency meter output (0~10V)

19 Analog output common terminal

3. Wiring safety requirements

After power failure, wait for the CHARGE light to turn off before operating

It is strictly prohibited to connect the power supply to the output terminals T1/T2/T3

Grounding resistance * * ≤ 100 Ω * *, independent grounding is optimal

Separate wiring for power and control lines

Run operation

Two control modes

External terminal control (default)

Controlled by external switches and potentiometers for start stop and frequency

Parameter: no-01=xx00

Digital operator control

Operated by panel RUN/STOP/FWD/REV

Parameter: no-01=0011

Trial operation steps

Check the wiring for accuracy and disconnect the load

Power on, set the rated current of the motor

Start and check for steering, sound, and vibration

Adjust acceleration and deceleration time (default 10 seconds)

Core parameter settings

Common parameter summary table

Default value range for parameter number function

01 Operation mode selection 0000-

02 Maximum frequency 60.0Hz 50~400Hz

04 Base frequency 60.0Hz 0.1~400Hz

09 Acceleration Time 1 10.0s~600s

10 deceleration time 1 10.0s 0~600s

17 point moving frequency 6.0Hz 0~400Hz

The rated current of the 19 motor ranges from 10% to 120% according to the model

22 frequency given gain 1.00-

27. DC braking time during stop: 0.5s~5s

Advanced features

9-stage multi-stage speed: terminal 5/6/7 combination setting

S-curve acceleration and deceleration: suppressing mechanical impact

Frequency jump: Avoid resonance points

Speed search: Power outage recovery and restart

Protection and fault diagnosis

protection function

OC: Overcurrent (>200% rated)

OV: Overvoltage (DC>410V)

UV: Under voltage (DC ＜ 210V)

OH: Overheating of radiator (>90 ℃)

GF: Grounding fault

OL1/OL2: Motor/frequency converter overload

OL3: Over torque detection

CPF: Control circuit failure

Principles of fault handling

Record fault codes

Check the load, wiring, and parameters

External reset or power-off restart

Repeated faults need to be returned to the factory for repair

Maintenance and Inspection

Regular inspection items

Tightening torque of terminal screws 4~6kg · cm ²

The lifespan of the cooling fan is approximately 20000 hours

Whether the filtering capacitor has bulges or leaks

Clean environment, no dust or oil stains

Maintenance requirements

Power off and confirm that the CHARGE light is off before operation

Cannot be subjected to withstand voltage testing

Fan malfunction, replace immediately

Key issues

Question 1: What are the two control modes of G3SV frequency converter? How to switch?

answer:

External terminal control (factory default): controlled by external buttons and potentiometers;

Digital operator control: directly controlled by panel buttons.

Switching method: Enter parameter no-01 and set it to 0011 to switch to panel control.

Question 2: What is the most dangerous mistake in the wiring of the 3G3SV main circuit? What consequences will it cause?

Answer: The most dangerous mistake is to connect the AC power supply to the output terminals T1/T2/T3 of the frequency converter. Consequence: It will directly burn out the internal power module of the inverter, which cannot be repaired and can only be replaced as a whole machine.

Question 3: What are the common causes and solutions for OC overcurrent faults in frequency converters?

Answer: Common reasons:

Output short circuit and grounding;

The acceleration and deceleration time is too short;

Overloading and motor stalling;

The frequency converter does not match the motor capacity.

Processing method:

Check the insulation between the motor and the cable;

Extend acceleration and deceleration time (parameter 09/10);

Reduce load or increase the capacity of the frequency converter;

Reset and restart after eliminating the short circuit.