Frequency converter CFM310 – 0.75kW

Supply voltage:
Uin 3ph x 380 V (+10%, -15%)

Supply voltage frequency:
45 – 66 Hz

Output voltage:
3ph x 0 – Uin
Output frequency:
0; 1 - 800 Hz
Frequency formation error: 0.05 Hz

Type of PWM modulation: Voltage vector

Motor connection:
Standard three-phase asynchronous motor 220/380V with a star connection of windings “Y” or
asynchronous motor 380/660V with a triangle connection of windings “∆”

Control Mode:
- Scalar U/ƒ with linear (proportional) characteristic.
- Scalar U/ƒ with quadratic characteristic.
- Scalar U/ƒ with forced characteristic.
- Improved scalar U/ƒ with automatic torque and slip compensation.

Control frequency of power module:
3 – 6 – 9 – 12 kHz

Rotation speed setting by:
- Analog inputs
- Digital inputs
- Control Panel
- PID controller
- RS485 communication interface

Resolution ability:
0,1% for analog input and 0,1 Hz for the control panel and digital inputs

Braking modes:
- DC braking
- Braking using a braking resistor

Cooling:
Active air cooling

2 analog inputs AN.IN1 и AN.IN2:
- in voltage mode: 0…10 V, Rin ≥ 50 kOhm
- in current mode: 0 (4)…20 mA, Rin = 220 Ohm

6 galvanically isolated digital inputs with switchable polarity:

NPN
- active level: 0 V
- inactive state:
20…24 V

PNP
- active level:
20…24 V
- inactive state: 0 V

Resistance:
Rin ≥ 4 kOhm.

1 analog output:
0…10V

1 digital output with open collector: up to 1A / 0...40V
Fully programmable signal source.

2 relay with changeover contacts:
commutation load: 250 V / 10A (AC)
Fully programmable signal source.

- Supports operation of the RS485 communication module with a galvanically isolated channel.

- Communication protocol Modbus RTU

- Supported baud rates: 4800, 9600,19200, 38400, 56000 or 115200 bps

- Possibility of individual and group changes of FC parameters by a top-level device.

- Implemented PC software with a flexible configuration management capabilities.

Meter counter:

- allows to use the FC in systems with conveyor and pulling mechanisms, when it is necessary to control the measured length or quantity of product in pieces.

Built-in PID controller:

- allows to launch a closed loop for stabilization of any technological parameter whose value can be measured.

Configuration management:

- user can save and load pre-configured personal configurations into the non-volatile memory of the FC. It is possible to quickly reset the FC to a factory settings.

- from current overloads of the FC

- from overvoltage on the DC bus

- from reducing the voltage on the bus during operation

- from starting the electric motor when there are only two phases

- from electric motor overload

- from electric motor underload (switchable)

- against loss of communication via RS485

- from overheating of the converter and/or electric motor

- from interphase short circuit

- from short circuit to ground of any phase

- from short circuit in the brake resistor circuit

- from system failures and other functional errors