CW-7500 Series Contents <1> Cautions ----------------------------------------------------------------------------- 3 <2> Contour and parts introduction --------------------------------------------- 4 <3> Installation ------------------------------------------------------------------------- 5 <4> Unit introduction and parameters adjustment ------------------------- 6 <5> Alarm and communication output ----------------------------------------- 12 <6> MODBUS RS-485 communication function ----------------------------- 13 <7>...
CW-7500 Series Thank using machine from GUANGZHOU TEYU ELECTROMECHANICAL CO., LTD. Please read the installation instructions carefully before installing and operating and keep it properly. This installation instructions is not a quality assurance. GUANGZHOU TEYU ELECTROMECHANICAL CO., LTD reserves the right to the interpretation of correction of typographical errors, improper mentioned information and product improvement.
CW-7500 Series <2> Contour and parts introduction TEMPERATURE CONTROLLER LOW PRESSURE WATER PRESSURE HIGH PRESSURE POWER SWITCH ALARM AND COMMUNICATION OUTPUT POWER AIR OUTLET AIR INLET WATER SUPPLY INLET WATER OUTLET WATER INLET WATER LEVEL GAUGE WASTE WATER DRAIN OVERFALL GAP...
6. Adjust parameters of temperature controller. CW-7500 series use an new intelligent controller. It works in defaulted constant temperature control mode for the low temperature end with water temperature set at 25℃ which can be adjusted as needed.
CW-7500 Series <4> Unit introduction and parameters adjustment The unit use wire LCD temperature controller to realize more precise temperature control and stronger capacity of resisting disturbance. It supports MODBUS-485 communication with transmission distance up to 1.2km; (2) It has water line anti-icing function. Under standby condition, it functions when the room temperature is below 5℃;...
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CW-7500 Series press Set-button to enter into User menu to set the parameters. If the password is incorrect, it will quit the setting interface and turn to normal operation interface. The default password 168 must be kept well. The user menu can not be accessed if the password is forgotten and no backup password is available.
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CW-7500 Series 2. Detailed parameter setting is as below table Orde Factory Register Code Set item Range Remark setting address F6~F5/ Intelligent mode / Set temp. 0x0401 -20~40 Constant temp mode Temp. difference values -15~5 0x0402 Cooling hysteresis 0.1~3.0 0.1 resolution ratio...
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CW-7500 Series NOTE: (1) In parameter setting status, the system runs under original parameters; (2) Under Constant Temperature control mode (“ F4” set at 0), water temperature is controlled by “F1”; (3) Under Intelligent Control mode (“ F4” set at 1), water temperature is self-adjusting according to ambient temperature.
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CW-7500 Series input function External input activation delay External input standby activation delay Key lock of Chiller On/Off Self-starting after being electrified Case 1: cooling water temperature is controlled by intelligent mode. Requiring water temperature to be between 25℃ to 31℃. When the set water temperature is 3 ℃...
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CW-7500 Series 5. Failure code table Failure Alarm Elimination Description Alarm action code phenomenon method Automatic clearing Communication E00 shown with after mainboard None failure alarm alarm sound and operation panel are connected well E01 shown with The compressor, condenser fans and...
CW-7500 Series <5> Alarm and communication output For ensuring the equipment will not be damaged when abnormal condition occurs in the chiller, it has alarm protection function. 1. Alarm and MODBUS RS-485 communication output wiring diagram. 2. Working condition table of alarm signal...
CW-7500 Series <6> MODBUS RS-485 communication function This system adapts salve mode of MODBUS-RTU communication,9600 baud rate, no parity checking,8 data bit,1 stop bit and support MODBUS-RTU 03 (Read Holding Registers) and 06 (Read Holding Registers) commands. Communication formats are as below: 1.
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CW-7500 Series Slave response Function code 1 bytes 0x86 Register address 2 bytes From 0x0400 to 0x044a Register value 2 bytes From 0x000 to 0xffff Error Error code 1 bytes 0x86 Exception code 1 bytes 01 or 02 or 03 or 04 For example: if the host’s sending address is 1, requests command of writing data...
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CW-7500 Series 4. Read only parameter(state) Read-only Register Description Bit definition address Bit7(MSb) Retain Retain Bit6 Retain Bit5 Retain Bit4 MSByte Retain Bit3 Bit2 Alarm output relay 0:Off 1:On Bit1 Conductivity lower limit relay 0:Off 1:On Bit0(LSb) High temp. heating rod 0:Off...
CW-7500 Series <7> Specifications CW-7500 Model CW-7500EN CW-7500FN CW-7500VN CW-7500HN Voltage AC 3P 380V AC 3P 380V AC 3P 415V AC 3P 220V Frequency 50Hz 60Hz 50Hz 60Hz Current 8~13A 8~15A 8~13A 4.1~23.6A 4.95KW 4.54KW 4.95KW 4.70KW Compressor power 6.73HP 6.05HP...
CW-7500 Series <8>Simple troubleshooting Failure Failure Cause Approach Check and ensure the power interface and Power cord is not plugged in place the power plug is plugged in place and in good contact Open the electric box cover, check the...