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PRODUCT DATA
SEC61X SERIES | Electronic Expansion Valve Controller
FEATURES
• ADVANCED PID ALGORITHM TO ENSURE ACCURATE AUTOMATIC ADJUSTMENT OF SUPERHEAT
• ALARM FEATURE FOR LOW AND HIGH SUPERHEAT
• EASY TO INSTALL; DIN RAIL OR SURFACE MOUNT
• MAXIMIZES SYSTEM EFFICIENCY WITH PRECISE SUPERHEAT CONTROL
• ALTERNATE USE AS AN ELECTRIC VALVE DRIVER
• OPERATES SANHUA LPF OR DPF(S03) SERIES EEVS
NOMENCLATURE
SEC
6
13
R4
Pressure Transducer Type: "13" = Voltage Type, "14" = Current Type
"6" = Sixth Generation
Sanhua Electric Expansion Valve Controller
Copyright © SANHUA 2020
Subject to change without notice
"R4" = Controller includes RS485 Modbus communication
The Sanhua SEC61x Series controller is a
standalone controller for refrigeration and air
conditioning systems. The controller can be
used to operate an electronic expansion valve to
control superheat or discharge air temperature.
It can also be used as an electronic valve driver
(positioner) by accepting an external signal
from a main system controller.
1
DS-SEC61X-NA-EN-0620
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Summary of Contents for Sanhua SEC61X SERIES
- Page 1 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller The Sanhua SEC61x Series controller is a standalone controller for refrigeration and air conditioning systems. The controller can be used to operate an electronic expansion valve to control superheat or discharge air temperature.
- Page 2 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller SEC Controller Items Description Dimension 2.83” (72mm) × 4.49” (114mm) × 1.14” (29mm) Supply Voltage 24VAC/DC +10%/-15%, 50/60Hz, minimum 15 VA Connections Removeable screw terminals (28 to 16 AWG) XHP plug-in terminals...
- Page 3 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller Temperature Sensor NTC 5K Items Description Sensor type NTC 5KΩ TEMPERATURE VS. RESISTANCE Temperature Resistance Cable 2 x 20 AWG Temperature °F °C (k ohms) Protection class IP 67 Sensor Accuracy ±0.5°F @ 77°F...
- Page 4 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller DIMENSIONS * The reset button on the side of the device performs a power-cycle of the device. No settings are changed by the reset button. SYSTEM PLACEMENT DIAGRAM Copyright © SANHUA 2020...
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Page 5: Connection Diagram
PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller CONNECTION DIAGRAM 24VAC/DC 15 VA Pressure sensor Temperature sensor Copyright © SANHUA 2020 DS-SEC61X-NA-EN-0620 Subject to change without notice... -
Page 6: Operation
PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller OPERATION LED Display and Operating Buttons Definition Description Super Heat Display Superheat Press Display pressure Open% Display valve open ratio Temperature Display temperature F/PSIG Display the unit of temp./pressure LED Display... - Page 7 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller SETTINGS | DIP SW switch settings A. EEV Type Selection DIP SW Position Description (Default mode) DIP SW2: OFF, DIP SW3: OFF 1-2 phase, 500 steps, 30PPS DIP SW2: OFF, DIP SW3: ON...
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Page 8: Control Modes
PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller CONTROL MODES 1) Superheat control (DIP SW1:OFF, DIP SW4:OFF) Application Parameters Function Code Min. Default* Superheat set-point 10.8 (108) Start open ratio Start open ratio duration time P: Proportional gain 99.9 3.0 (30) - Page 9 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller CONTROL MODES (CONTINUED) Application Parameters 3) Discharge Air Temperature control (DIP SW1:OFF, DIP SW4:ON) Function Code Min. Default* Set point for control target** 10.8 (108) Start open ratio Start open ratio duration time P: Proportional gain 99.9...
- Page 10 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller PARAMETERS 1.Pr Menu 1 = MODBUS Description Code Unit Step Min. Max. Default* Address 40001 Superheat set-point °F 99.9 10.8 (108) 40003 Start open ratio 40004 Start open ratio duration time...
- Page 11 PRODUCT DATA SEC61X SERIES | Electronic Expansion Valve Controller PARAMETERS (continued) 2.Pr Menu 2 = MODBUS Description Code Unit Step Min. Max. Default* Address 40061 Password 0=R-22, 7=R-1234yf 14=R-744 (CO2) 21=R-124 1=R-404A, 8=R-290 15=R-744 (N2O) 22=R-717 2=R-410A, 9=R-450A 16=R-32 23=R-407H...
- Page 12 Step Min. Max. Default* Address Apply electricity to valve at all times. Default OFF because Sanhua self-hold technology can 40041 0=OFF 1=ON de-energize the stator while maintaining a constant valve position. 1-2 (0) =1-2 phase excitation: LPF, DPF(TS1), DPF(S03) 40042...
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