Sanhua SEC R03 Series Instructions Manual

Sanhua SEC R03 Series Instructions Manual

Refrigerated cabinet controller

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SEC R03 series
Refrigerated cabinet controller
Instructions
Copyright ©SANHUA 2022
II-SECR03
1 / 31
-EN-R2203
Subject to change without notice

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Summary of Contents for Sanhua SEC R03 Series

  • Page 1 SEC R03 series Refrigerated cabinet controller Instructions Copyright ©SANHUA 2022 II-SECR03 1 / 31 -EN-R2203 Subject to change without notice...
  • Page 2 10. Sensor wires and signal wires shall be away from power and load wires and installed separately. 11. Avoid using this product near the equipment generating strong high-frequency noise (such as high-frequency welding machine, high-frequency sewing machine, high-frequency wireless telegraph, high-capacity SCR controller, etc.). Copyright ©SANHUA 2022 II-SECR03 2 / 31 -EN-R2203...
  • Page 3: Table Of Contents

    4.2 Read-only parameter communication address ..................25 4.3 Alarm parameter communication address .................... 26 4.4 Read/write parameters communication address .................. 26 5 Appendix: Complete parameter table ......................27 Copyright ©SANHUA 2022 II-SECR03 3 / 31 -EN-R2203 Subject to change without notice...
  • Page 4: Product Description

    24Vdc+10%/-15%, Class II >15W (24Vdc) Power consumption >25VA (24Vac) Pluggable terminal (M3) Torque 0.5N.m, current ≤3A(220V), Connection Min/max wire diameter 0.34~2.5mm2 XHP terminal (EEV and sensor) Communication RS485,Display,InterCom Copyright ©SANHUA 2022 II-SECR03 4 / 31 -EN-R2203 Subject to change without notice...
  • Page 5: Product Configuration

    Thread: 1/4"SAE 7/16-20UNF ★ Note:Above, pressure transmitters are standard models, recommended by Sanhua. If you select other models, please refer to the Sanhua catalog. The output signal for pressure transmitters, purchased separately, must meet the following conditions: YCQB:0.5~3.5V. Copyright ©SANHUA 2022...
  • Page 6: Controller Function Connection Diagram

    2.3 Controller function connection diagram Figure 2 :Controller function connection diagram Copyright ©SANHUA 2022 II-SECR03 6 / 31 -EN-R2203 Subject to change without notice...
  • Page 7 Control lighting Normally open contact Dual temperature switch two groups of parameters with See 2.7 double Temp control switch an external switch of one unit for details Copyright ©SANHUA 2022 II-SECR03 7 / 31 -EN-R2203 Subject to change without notice...
  • Page 8: Super-Capacitor Connection Diagram

    Figure 3 :Super capacitor connection diagram 2.5 Remote display connection For easier operation, a remote display can be connected to the blind controller, and you could operate the controller via a remote display: Copyright ©SANHUA 2022 II-SECR03 8 / 31 -EN-R2203...
  • Page 9: Intercom Cascade Communication

    ★After the cascade communication parameters are modified, please power off and restart. ★Set the master/slave controller communication ID as follows : Master controller Slave controller communication ID communication ID m*10+1,m∈[0,24] m*10+n,n∈[2,10] 2,3,……,9,10 12,13,…….,19,20 232,233,……,239,240 242,243,……,249,250 Copyright ©SANHUA 2022 II-SECR03 9 / 31 -EN-R2203 Subject to change without notice...
  • Page 10: Dual Temp Mode Setting

    4. Cut OFF the power before switch the parameters groups Description Code Bit0 Default bit 0: 40167 Dual Temp mode 0: External switch OFF 1: External switch ON Copyright ©SANHUA 2022 II-SECR03 10 / 31 -EN-R2203 Subject to change without notice...
  • Page 11: Operating Instructions

    Cabinet temperature is displayed by default; press the [SEL] key to switch the display content, view other parameters such as T-2 Temp, T-3 Temp, etc., and automatically return to the current freezer Temp display after 1 minute of no key operation. Copyright ©SANHUA 2022 II-SECR03 11 / 31...
  • Page 12: Parameter Setting Steps

    ④ Press【SEL】for 3 seconds to save the parameter setting and exit parameter setting mode. Without operation after 1 minute, automatically exit the parameter setting. Description Code Unit Interval Min. Max. Defaults 40041 password Copyright ©SANHUA 2022 II-SECR03 12 / 31 -EN-R2203 Subject to change without notice...
  • Page 13: Control Mode On/Off And Manual Forced Operation Function

    Forced defrosting is an additional process and does not affect the defrosting settings of system; it is invalid when the control function is OFF. ③ When the system is power ON, the control function is ON. Copyright ©SANHUA 2022 II-SECR03 13 / 31...
  • Page 14: Parameter Setting

    ★Note: When [A09] forced valve opening ratio setting value is not -1, the electronic expansion valve will be forced to open to the A09 [force valve opening ratio] setting value and remain unchanged after the initial opening duration ends. Copyright ©SANHUA 2022 II-SECR03 14 / 31...
  • Page 15: Sensor Parameter Setting【4.Pr

    40109 T-1 Sensor offset correction -9.9 40110 T-2 Sensor offset correction ℃ -9.9 40111 T-3 Sensor offset correction ℃ -9.9 40112 T-4 Sensor offset correction ℃ -9.9 Copyright ©SANHUA 2022 II-SECR03 15 / 31 -EN-R2203 Subject to change without notice...
  • Page 16: Cabinet Temperature Parameter Setting

    Temp change. The upper and lower limits of the cabinet Temp display and the stabilization display coefficient can avoid drastic changes in the cabinet Temp due to defrosting. Copyright ©SANHUA 2022 II-SECR03 16 / 31...
  • Page 17 Note: You need to re-set the current o'clock and current minute every time when power on again. At the same time, it is recommended to calibrate the current hour and current minute every other month . Copyright ©SANHUA 2022 II-SECR03...
  • Page 18: Defrosting Parameter Setting

    If L16 [Defrost mode] is set to 1 (defrosting according to the operation time), then b09 is the refrigeration operation time of the compressor (compressor OFF time not included). If L16 [Defrosting Mode] is set to 2 (defrosting according to the defrosting interval), then b09 is the defrosting interval time. Copyright ©SANHUA 2022 II-SECR03 18 / 31 -EN-R2203...
  • Page 19 If T4 (defrost sensor) > b11, the defrost relay will open and stop the defrost cycle. c. The time or the temperature (b10 = 2) If T4 (defrost sensor) > b11, the defrost relay will open and stop the defrost cycle. Copyright ©SANHUA 2022 II-SECR03 19 / 31...
  • Page 20 (or pre-refrigeration) phase together. If synchronous defrosting is turned off, all controllers will perform independent defrosting according to their respective set conditions. Copyright ©SANHUA 2022 II-SECR03 20 / 31 -EN-R2203...
  • Page 21: Evaporator Fan Control

    1: Same as c00 [Evaporator fan control during cooling] 0: Always OFF Fan control during water 1: Same as c00 [Evaporator fan control 40079 dripping during cooling] 2: Always ON Copyright ©SANHUA 2022 II-SECR03 21 / 31 -EN-R2203 Subject to change without notice...
  • Page 22: Defog/Alarm And Light Function【3.Pr

    Pressure & temperature abnormal 40138 Exit time of abnormal defrost temperature 40139 Operating mode when 0:Not OFF condensing temp. abnormal 1:OFF 40140 MOP valve closing integral time Copyright ©SANHUA 2022 II-SECR03 22 / 31 -EN-R2203 Subject to change without notice...
  • Page 23 If [F19] [MOP valve closing integral time] > 0, the valve will be closed according to the difference between the current pressure and [F01] [MOP alarm value] with the speed due to [F19] [MOP valve closing integral time]. Copyright ©SANHUA 2022 II-SECR03 23 / 31 -EN-R2203...
  • Page 24 ★Alarm for abnormal cabinet temp: In the cooling state, after reaching the target cabinet temp., if the temp. return to the [abnormal cabinet Temp alarm value], and keeps the [cabinet Temp abnormality judgment time] controller outputs an alarm. Copyright ©SANHUA 2022 II-SECR03 24 / 31...
  • Page 25: Communication Protocol

    40006 Suction pressure bar(g) ×10 40007 Saturation Temp ℃ ×10 40008 Superheat ℃ ×10 40009 EEV Opening degree ×10 40010 Alarm status 1 40011 Alarm status 2 Copyright ©SANHUA 2022 II-SECR03 25 / 31 -EN-R2203 Subject to change without notice...
  • Page 26: Alarm Parameter Communication Address

    See Chapter 2 and Chapter 3 for details on setting the parameter communication address. The remark “×10” in Chapter 3 means that the value read in the communication address is the actual value×10 times. Copyright ©SANHUA 2022 II-SECR03 26 / 31...
  • Page 27: Appendix: Complete Parameter Table

    ℃ 40066 Cabinet temperature hysteresis ×10 0: Fully closed EEV setting when solenoid 40067 1: Keep the current opening degree valve/compressor OFF 2: Keep to b07 setting Copyright ©SANHUA 2022 II-SECR03 27 / 31 -EN-R2203 Subject to change without notice...
  • Page 28 Synchronous defrosting mode 0:Turn OFF 1:Turn ON Communication ID setting 40097 Communication speed setting 40098 48(0)=4800;96(1)=9600 40099 Number of slave controllers Controller master/slave mode 0: Slave 1:Master 40100 Copyright ©SANHUA 2022 II-SECR03 28 / 31 -EN-R2203 Subject to change without notice...
  • Page 29 Low SH alarm reset 30.5 40132 40133 High SH alarm mode 0: OFF 1: ON High SH alarm value 40134 High SH alarm delay 40135 40136 High SH alarm reset Copyright ©SANHUA 2022 II-SECR03 29 / 31 -EN-R2203 Subject to change without notice...
  • Page 30 Abnormal cabinet Temp alarm 40158 1: ON+ Automatic reset mode 2: ON+ Manual reset Abnormal cabinet Temp alarm ℃ 40159 ×10 value Abnormal cabinet Temp 40160 determination time Copyright ©SANHUA 2022 II-SECR03 30 / 31 -EN-R2203 Subject to change without notice...
  • Page 31 40196 8# Defrost minute 0: Defrosting according to schedule 1: Defrost according to the Defrost mode refrigeration operation time 40197 2: Defrost according to the defrosting interval Copyright ©SANHUA 2022 II-SECR03 31 / 31 -EN-R2203 Subject to change without notice...

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Secr03-r0

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