FREQUENCY CONVERTER FOR COOLING APPLICATIONS
Purpose of the development:
This inverter is optimized for use in compressors, pumps and fans in refrigeration applications, saving energy and increasing the service life of equipment.
Recommended application field:
The frequency converter can be integrated in the refrigeration system to monitor and sometimes perform functions of refrigeration controllers and other machines.
Technical characteristic:
Voltage range:
3 x 200 - 240 B ± 10%
3 x 380 - 480 B ± 10%
3 x 525 - 600 B ± 10%
Line Frequency: 50/60 Hz
Maximum imbalance temporary phases 3% of rated voltage
Power Factor:> = 0.9 at rated load
Power Factor:> 0.98
Inclusions for L1 / L input, L2, L3 / N - No more than 2 times per minute (from 11 kW - 1 per min)
Environmental conditions according to EN60664-1 - Overvoltage category III / pollution degree 2
Overload capability - 110% - 1minute
Management - vector and scalar
Output characteristics (U, V, M):
Output voltage - 0-100% of the rated input
Output frequency - 0-1000 Hz
The number of output switches - Unlimited
Acceleration / Deceleration time - 0,01-3600 seconds.
Torque characteristics:
Starting torque (Constant torque) - Maximum of 110% for 60 seconds *
Starting torque - maximum 135% for 0.5 seconds *.
Torque overload (constant torque) - Maximum of 110% for 60 seconds *.
* - As a percentage of the rated torque
Digital inputs
Number of programmable digital inputs - 4 (6)
Logic - PNP
The voltage level - 0-24
The maximum input voltage - 28 V
Input resistance, Ri - Around 4 ohm
Pulse input:
Programmable impulse input - 2
The voltage level - 0-28 in
Input precision (0,1-110 kHz) - accuracy 0,1% of full scale
Input frequency - 4-5000 Hz
Input resistance, Ri - Around 4 ohm
Scan interval - 13.3 ms
Resolution - 10-bit
Analog inputs:
The number of analog inputs (current and voltage) - 2
Modes - current or voltage
Input resistance, Ri (voltage) - About 10 ohms
The voltage level - 0-10 V (scaleable)
Maximum voltage - 20 V
Current level - From 0/4 to 20 mA (scaleable)
Input resistance, Ri (current) - About 300 ohms
Maximum current - 30 mA
Analog Input Resolution - 10 bits (+ sign)
Analog output:
Programmable analog output - 1
Current Level - 0/4 to 20 mA
Maximum load - 500 Ohm
Accuracy - 0.5% of full scale
Discrete / frequency outputs:
Number of programmable digital / pulse outputs - 2
The voltage level on the discrete / frequency output - 0-24
Maximum frequency output load - 1 kW
Maximum capacitive load at frequency output - 10 nF
Minimum output frequency at frequency output - 32 Hz
The error frequency output
Maximum error: 0.1% of full scale
Output frequency resolution - 10 bits
Internal power supply
Input voltage - 0.5V ± 10.5, 24 ± 0.5V
Maximum load (10B) - 25 mA
Maximum load (24V) - 100 mA
Relay outputs
Programmable relay outputs - 1
Maximum load on the terminals - 240V, 2A
Communication with the data buses - FC Protocol, Modbus RTU, RS485, USB
Length of cable:
Maximum length of shielded (armored) motor cable - 150 m
Maximum length, unscreened (unarmoured) motor cable - 300 m
Environment, Drive configuration:
Housing - IP20 (IP21 with optional)
Vibration - 1,0 G
Aggressive media - Class H25
Humidity - 5 - 93% (IEC 721-3-3; Class 3K3 (non-condensing during operation)) Engine
Max. ambient temperature - -10 - 50 ° C
Advantages over analogues:
1. Compliance with EMC requirements.
2. Built-in EMC filter.
3. Compressor function.
4. The suction pressure optimization.
5. Enable / disable injection.
6. Improved cooling processes.
7. Control of the discharge temperature.
8. The cascade controller.
9. Control up to three compressors without an external PLC.
10. The controller of the neutral zone.
11. Perfect setting system.
12. A thermostat / pressure switch function.
13. The pumping function.
14. Dry-running protection and control of the end of the pump curve.
15. Flow compensation.
16. Conversion of pressure to flow.
17. Fan function.
18. Control of a broken belt.
19. Parallel motor control.
The development stage readiness:
Introduced in production
Description of the development:
() The converter has a setup program that uses common terminology cooling, which greatly simplifies the installation process for the service engineers and installers. In addition, the Setup Wizard helps engineers in case of any problems. The program menu contains recommendations on diagnostics and troubleshooting.
corresponds technical description
Conforms to technical characteristic
Possibility of transfer abroad:
Realization of finished commodity
Photo
Country
Ukraine
For additional information turn to: E-mail: gal@uintei.kiev.ua
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