OMRON SYSDRIVE 3G3KV-EV2 series frequency converter

Product basic positioning

Product model: 3G3KV — EV2 (European version)

Voltage level: 200V single-phase/three-phase, 400V three-phase

Suitable motor: 0.1~3.7kW

Control mode: sine wave PWM

Frequency range: 0.1~400Hz

Overload capacity: 150%/1min

Hardware Structure and Installation

core component

Digital Operator (3G3KV-PJOP110)

Main circuit terminal, control circuit terminal

CHARGE indicator light (must be turned off after power failure before operation)

Installation requirements

Installation method: Vertical installation

Heat dissipation spacing: left and right ≥ 30mm, up and down ≥ 100mm

Environmental temperature: -10~40 ℃ (with top cover); -10-45 ℃ (without top cover)

Environmental conditions: dustproof, moisture-proof, corrosion-resistant, and vibration resistant

Wiring specifications

Main circuit terminal

Terminal function

L1 (R)/L2 (S)/L3 (T) power input

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

B1 (+)/B2 braking resistor

G (E) grounding (≤ 100 Ω)

Control circuit terminal

Switching quantity: forward/reverse rotation, fault reset, external fault, multi-stage speed

Analog quantity: 0~10V/4~20mA frequency given

Output: Running signal, frequency arrival, fault relay (FLT-A/B/C)

Wiring protection

MCCB circuit breaker on the input side

Long distance wiring reduces carrier frequency (5kHz for ≤ 100m)

Separate control cables from power lines and use shielded wires

Digital operator and parameter setting

Operation Mode

DRIVE mode: operation, start stop, jog, frequency setting

PRGM mode: parameter modification, function configuration

Core parameter group

Parameter Category Key Parameters Factory Value

Operation mode 01 (operation mode selection) 0011

V/f characteristic 02 (maximum frequency) 60.0Hz

Acceleration and deceleration 09/10 (acceleration and deceleration time 1) 10.0s

Motor protection 19 (rated current of motor) by model

Carrier frequency 40 4 (10kHz)

Common Functions

4-speed (parameters 13-16)

Jogging operation (parameter 17, default 6.0Hz)

DC braking (start/stop braking)

Stall prevention (acceleration/operation/deceleration)

Slip compensation (steady speed)

Protection function

Fault protection (shutdown)

OC: Overcurrent (approximately 200% of rated current)

OV: Overvoltage (200V level>410V; 400V level>820V)

UV: Under voltage

GF: Grounding fault

OH: Overheating of heat sink

OL1: Motor overload

OL2: Inverter overload

Warning protection (non-stop)

OL3: Over torque warning

Stall prevention (current limitation)

External fault (EF4/EF5)

Troubleshooting and Maintenance

Common fault handling

Possible causes and solutions for fault display

OC accelerates too quickly, output short circuit extends acceleration and deceleration, check wiring

OV decelerates too quickly, regenerative load prolongs deceleration time, and braking resistor is added

OL1 motor overload reduces load and adjusts protection current

Poor heat dissipation of OH, cleaning fan, improving ventilation

regular maintenance

Check the terminal fastening and clean the heat sink

Replace the cooling fan and check the capacitor

Insulation test (500V megohmmeter, ≥ 1M Ω)

Disassembly and assembly of operator

The power must be cut off and the CHARGE light must be turned off before operation

Key issues

What are the two operation control modes of 3G3KV frequency converter? How to switch? There are two methods: digital operator control and external terminal control. Switching method: Modify parameter 01, set it to 0000 to enable external terminal control, and set it to 0011 to enable operator control.

What are the absolutely prohibited operations for the main circuit wiring?

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

It is strictly prohibited to connect power factor compensation capacitors at the output end

Do not touch the main circuit terminals when powered on (wait for the CHARGE light to turn off)

It is strictly prohibited to short-circuit or directly switch the contactor on the output side

How to set the motor protection function? What should I pay attention to?

Setting steps:

Parameter 18: Activate the electronic thermal relay (default is 0000)

Parameter 19: Input the rated current of the motor (according to the motor nameplate)

Attention: One to multiple motors require an external thermal relay, and the carrier frequency should be reduced during low-speed operation.