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Screw Compressor Unit Controler

Current location: Home-Screw Compressor Unit Controler


Release time:2015/12/31 11:26:45 Clicks:884 times 【Return】

Application: Suitable for control of four parallel screw compressor(you can choose condensation method,following with air-cooled condenser as an example, an evaporative condenser was as same as air-cooled condenser)
Function:Adjust the working number of compressor and energy regulation level of compressor according to the low pressure. Economizer (ECO) control, Oil system control , Condenser control, The alarm/ prompt equipment maintenance period, Input by external control.
Status Display:Discharge/suction pressure, oil temperature, compressor 1#/2#/3#/4# status,  Economizer (ECO) status, Condenser1#/2#status, oil cooler status, external control status, bypass valve status, pulse valve status
Alarm Display:Phase sequence protection alarm, discharge/suction pressure alarm, oil level protection alarm, oil cooler current alarm,1#/2# condenser current alarm,current alarm, 1#/2#/3#/4#compressor current alarm,1#/2#/3# compressor temperature alarm,1#/2#/3#/4#compressor oil flow alarm, 1#/2#/3#/4#compressor oil filter protection, discharge temperature sensor wire break alarm, oil temperature sensor wire break alarm, high/low pressure sensor wire break.
Technical Parameters
Working Voltage:AC 220V±10% 50Hz
Display Screen:LCD   Resolution320×240
Interface Language:Simplified Chinese
Switch Output:31 channels, the capacity of output contact  3A/AC 220V
Switch Input:24channels
Analog Input:pressure sensor 2 channels   Input Signal 4~20mA
high pressure:0~30bar, low pressure:-0.8~7bar, the length of wire is 3m
temperature Sensor 2 channels  NTC(5KΩ/25℃,the value of B is 3470),
Suction temperature range:-50~50℃, Discharge temperature range:-50~100℃, the length of wire is 5m
Measurement Accuracy:±1℃(Resolution 0.1)  
Pressure Accuracy:±0.1bar
Working Environment Temperature:0℃~60℃
Working Environment Humidity:20%~85%,no condensation.
Installation form:panel type/back board type

Communication Mode:RS485(it will be supplied when you choose backboard type)

Protection grade: IP 20

Panel type:Panel Dimension:213mm(Length)×124mm(With)
Installation Dimension:203mm(Length)×114mm(With)
Appearance Dimension:203mm(Length)×124mm(With)×81mm(High)
Backboard type:Installation Dimension:243mm(Length)×114mm(With)
Appearance Dimension:243mm(Length)×114mm(With)×81mm(High)

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