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Sanhua Revo Series Instructions Manual

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Zhejiang Sanhua Commercial Refrigeration Controls Co.,Ltd
http://commercial.sanhuagroup.com
SANHUA is not responsible for possible errors in its manuals, catalogs and other printed materials.
SANHUA reserves the right to make changes to products without prior notice.This also applies to products ordered but not delivered provided that such alterations can be
made without changes to form,fit or function of the product.
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Refrigerated cabinet controller Instructions
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SECR03-R2
Revo series
|
SECR03-R2+MD01-01_V 1.3 - 2023.09

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Summary of Contents for Sanhua Revo Series

  • Page 1 SANHUA is not responsible for possible errors in its manuals, catalogs and other printed materials. SANHUA reserves the right to make changes to products without prior notice.This also applies to products ordered but not delivered provided that such alterations can be...
  • Page 2 SECR03-R2 Revo series SECR03-R2+MD01-01_V 1.3 - 2023.09 Refrigerated cabinet controller Instructions SECR03-R2+MD01-01_V 1.3 - 2023.09...

  • Page 3: Table Of Contents

    Contents 1 Product description SAFETY ATTENTION 1.1 Schematic diagram of cabinet input signal 1.2 Basic information of controller SECR03-R2 Although the internal electronic circuit of this product has been protected to some extent, the components will still be 2 Product configuration damaged if it operates in a humid environment for a long time.

  • Page 4: Secr03-R2+Md01-01_V 1.3 - 2023.09

    Note: Above pressure transmitters are standard models recommended by Sanhua. Dimension have (WxHxD) 80(W)mm x 106(H)mm x 54(D)mm If you select other models, please refer to the Sanhua catalogue. The output signal for pressure transmitters purchased separately, 24Vac+10%/-15%, 50/60Hz; must have the output of 0.5~3.5V.

  • Page 5: Super-Capacitor Connection Diagram

    1. With a liquid line solenoid valve, if power is accidentally OFF, the solenoid valve will automatically close and there's no need of super-capacitor. 24V+ POWER Power supply 24VDC/AC 2. Use low internal leakage EEV (eg. Sanhua LPF), we recommend to install a super-capacitor to close the EEV when the system lose power 24V- See 2.4 connecting unexpectedly. power supply for details...

  • Page 6: Intercom Cascade Communication

    2.6 INTERCOM cascade communication 2.7 Dual Temp mode setting and door control function When several controllers are used in parallel, the INTERCOM communication can be used. The analog signal for master controller (eg. Suction pressure , case temperature ) can be shared with slave controllers, and can also achieve synchronous defrosting or cooling. 1.

  • Page 7: Operating Instructions

    ① Long press key for 3 seconds, and enter the password through the button, press the key to confirm, and enter the parameter 3 Operating instructions setting mode( When the password is correct, the value flashes and can be modified. When input wrong password, users can check the parameter but cannot modify the parameter.

  • Page 8: Sensor Parameter Setting [4.Pr]

    EEV Opening at Cooling OFF [2.Pr] Cabinet temperature target value setting [4.Pr] Description Code Unit Interval Min. Max. MT. default LT. default Description Code Unit Interval Min. Max. MT. default LT. default EEV at Cooling OFF 0: fully closed 1: Keep at previous opening 3: to pre-defined opening Cabinet Temp setting upper limit EEV opening at Cooling OFF mode Cabinet Temp setting lower limit...

  • Page 9: Defrosting Parameter Setting

    3.4.4 Defrosting parameter setting Parameter setting of defrosting process [2.Pr] Defrosting according to the schedule [8.Pr] Description Code Unit Interval Min. Max. MT. default LT. default Compressor mode during defrosting 0: compressor off; 1: compressor on Description Code Unit Interval Min.

  • Page 10: Time Setting

    issues a command and all the controllers enter the cooling (or pre-cooling) phase together. Use the evaporator fan control relay as the lighting 2 control relay; Then the control port will only switch according to the set time of n16-n18 If synchronous defrosting is turned off, all controllers will perform independent defrosting according to their respective set conditions.

  • Page 11: Condensing Temperature Control Mode [4.Pr]

    3.4.9 Condensing temperature control mode [4.Pr] Description Code Unit Interval Min. Max. MT. default LT. default Description Code Unit Interval Min. Max. MT. default LT. default High cabinet Temp alarm mode OFF(0): off On(1): on T-3 Temp sensor mode 0: Inlet air Temp 1: Condensing Temp High cabinet Temp alarm value High cabinet Temp alarm delay 3.4.10 Alarm mode [5.Pr]...

  • Page 12: Communication Protocol

    4 Communication protocol Note The SECR03 controller supports RS485 communication, MODBUS communication protocol, and the host computer or the main controller supporting the MODBUS protocol based on RS485 communication can communicate with the controller. 4.1 Communication protocol description Item Description Transmission line connection Multi-line transmission communication method...

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Secr03-r2

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