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Summary of Contents for SJE Rhombus NEX Series
- Page 1 NEX SERIES CE12 DUPLEX ™ Single phase,Duplex, Smart Pump Controller Installation Instructions and Operation Manual Installation instrution PN 1073739A © 2020 SJE-Rhombus Rev 04/22...
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Page 2: Table Of Contents
CONTENTS 1. WARNINGS ————————————————————————————— 2. PRODUCT FEATURES ——————————————————————— 3. TECHNICAL SPECIFICATIONS ———————————————————— 4 INSTATLLATION —————————————————————————— 5. OPERATION ————————————————————————————— 6. PANEL PROTECTIONS AND ALARMS ———————————————— 7. TROUBLE SHOOTING ———————————————————————— 8. MODBUS ———————————————————————————————— 9. WARRANTY —————————————————————————————— WARNINGS The following symbols, accompanied by the words: "Danger", "Warning", indicate the potential hazard resulting from failure to observe the associated warning, as specified below: DANGER RISK OF Failure to observe the warning may result in electric shock... -
Page 3: Product Features
2. PRODUCT FEATURES 2.1 Introduction The NEX Series™ CE12 Duplex control panel is designed to control two single phase pump in water and wastewater applications. It controls the level with 2 ~ 4 float switches. If the level rises to the top float switch the audible/visual alarm is activated. -
Page 4: Instatllation
14. Alarm Test/Silence Switch INSTALLTION 4.1 Installation the float switches The NEX Series CE12 Duplex control panel designed to operate with 2, 3 or 4 float switches.They activate LEAD & LAG pump stop, LEAD pump START, LAG pump START and high level ALARM functions. - Page 5 STOP STOP/LEAD Figure 1 - Two Floats Control Figure 2 - Three Floats Control Figure 3 - Four Floats Control Note: mounting hose clamp can be ordered Tighten from SJE Rhombus the clamp. factory. 3.5” (9cm) Make sure hose clamp band does not interfere with float operation.
- Page 6 4.2. Mounting the control panel NOTE If the distance to the control panel exceeds the length of the float switch cords or the pump power cord, splicing in a liquid-tight junction box will be required. For outdoor or wet installation, we recommend an SJE-Rhombus, IP66 junction box.
- Page 7 4.3. Wiring the control panel 1. Determine cable gland locations on control panel as shown. Check local codes and wiring label on the inside cover of the panel. CAUTION! * Power must be protected by leakage current protection device (operation current ≤...
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Page 8: Operation
5. OPERATION The NEX Series® CE12 Duplex control panel operates with 2~4 float switches. Multiple control pro- gram available through DIP switch. Through setting up of pump rated current on the current setting switch, the panel will provide the overload protection to the motors. -
Page 9: Panel Protections And Alarms
Circuit Breakers Each pump circuit has a thermal-magnetic circuit breaker that provides pump disconnect and branch circuit protection. Alarm Horn/Beacon When an alarm condition occurs, the red light and horn will be activated. Press the TEST/SILENCE button, the horn will be silenced. but the red light remains ON until the alarm condition release. When the alarm condition is cleared, the alarm horn/beacon will be auto reset. -
Page 10: Trouble Shooting
Float fault alarm The system provides float fault detection and backup control program. When float switch fault occures, the system will change to backup control program of related fault float switch, and ensure the system continually working properly. When the float fault recovered, the alarm will be reset automatically. This float fault alarm can also be reset manually. -
Page 11: Modbus
8. Modbus The NEX Series CE12 panel is equipped with Modbus RTU supporting using the “D+” and “D-” RS-485 terminals of RJ45 port. Default setting 9600 band (Can be set to Band Rate: Parity: None (fixed) 1200,2400,4800,19200,38400) Data Bits: 8 bits (fixed) - Page 12 8. Modbus Read 40036 Pump Current Setting Actual Value = Readout Value*0.01 Read 40037 Alarm Information Write 40061 Fail Reset 0x5A5A Write 40062 Silence 0x5A5A Write 40063 Alarm Relay Reset 0x5A5A 1: Pump1 Operation mode selected to Pump1 in Auto Mode Auto Pump1 Overload Protection 1: Pump1 Overload Protected...
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Page 13: Warranty
Float Fail & Pump Fail & High Level Alarm Codes Stop Float Fail : 0xXXX1 Pump1 System Fail : 0xXX4X Lead Float Fail : 0xXXX2 Pump2 Overload : 0xX1XX Lag Float Fail : 0xXXX3 Pump2 PSE protection : 0xX2XX Stop/Lead Float Fail : 0xXXX4 Pump2 Over Temperature : 0xX3XX... - Page 16 SJE-Rhombus (Suzhou) Co., Ltd. Unit B2-6, District A, Weiting Industrial Workplace, No. 9 Weixin Road, Weiting Town, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215122, China Phone: (86) 512 6507 2880 Fax: (86) 512 6507 2881 E-mail: sjesales@sjerhombus.cn www.sjerhombus.cn...
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Questions and answers
I have a customer that has a NEX Single Phase Simplex, 9-20A that will not turn off. I don;t see a manual or schematic of the control box. Any help will be appreciated so we can get him working again
To troubleshoot an SJE Rhombus NEX Single Phase Simplex, 9-20A control box that will not turn off, follow these steps:
1. Check Float Switches: A stuck or faulty float switch may continuously signal the panel to keep the pump running. Inspect the float switch for proper operation and position.
2. Inspect Control Switches: The two control switches in the panel activate the pump relay. Ensure they are functioning properly and not stuck in the "on" position.
3. Examine Power Relay: The relay may be stuck or malfunctioning. Check if the relay is operating correctly and replace if necessary.
4. Verify Panel Mode: Ensure the panel is in AUTO mode. If it's set to manual, the pump may not turn off automatically.
5. Check for Wiring Issues: Inspect wiring connections for shorts or damage that may cause continuous pump operation.
6. Inspect Alarm Switch: A faulty alarm switch might interfere with normal operation. Verify that it is not affecting control signals.
If the issue persists after these checks, the panel or components may require service or replacement.
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