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Summary of Contents for MPE DUPLEXER
- Page 1 DUPLEXER INSTRUCTION MANUAL OTOR ROTECTION LECTRONICS, LLC 2464 Vulcan Road Phone: (407) 299-3825 Website: www.mpelectronics.com Apopka, Florida 32703 Operating Program Revision: 8 Revision Date: 11-25-24...
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Page 2: Specifications
DUPLEXER APPLICATIONS Duplex Pumping Stations that Control Liquid Level Pump Down (Empty a Tank) or Pump Up (Fill a Tank) Where Connection to a SCADA System is Required FEATURES Float or Conductance Probe Level Inputs ... - Page 3 DUPLEXER while cycling power to the DUPLEXER. (On the older model of the DUPLEXER, hold down the pushbutton on the DUPLEXER for 22 seconds.) When all the work using the TSID is completed, the power to the DUPLEXER must be cycled for any changes to the Communication Setup Parameters to take effect.
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Page 4: Power Indicator
When the “POWER” indicator is off, the power supply voltage is too low for the unit to function. The Duplexer requires at least 100 VAC, but it can ride through a brief brown out. - Page 5 PUMP DELAYS Start Up Delay Whenever electrical power is lost and then restored, immediate pump operation is prevented by the Start Up Delay which must first expire before a pump may be called to run. Lag Pump Delay Any time one of the pumps is called to run, the Lag Pump Delay must first expire before the other pump may be called to run.
- Page 6 LEVEL INPUTS The Off, Lead, Lag, and Alarm level inputs allow the DUPLEXER to determine the level of the liquid in the wet well. The inputs may be connected to either four float switches, four single point conductance probes, or four selected points on a ten point conductance probe.
- Page 7 FORCE PUMP ALTERNATION An operator may remotely force alternation of the pumps through SCADA by momentarily setting Modbus Coil 25 (Register 40002, Bit 8). For the feature to work the LEAD SELECT toggle switch on the DUPLEXER must be set to “AUTO”.
- Page 8 OUT-OF-SEQUENCE - Pump Operation - Pump Down Mode In the Pump Down Mode the Out-Of-Sequence logic detects when an input fails to close in the correct order and provides the modified pump operation described below: Out-Of-Sequence Condition Pump Operation Out-Of-Sequence OFF INPUT - Turns on 1st pump when the Lead and Lag inputs close.
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Page 9: Fault Codes
OUT-OF-SEQUENCE - Trouble Shooting Currently Out-Of-Sequence When Level Inputs are currently out of sequence, the “Currently Out-Of-Sequence” data is placed into Mod- bus Coils 65 - 68 (Register 40005 Bits 0 - 3). It may be viewed using the Touch Screen Interface Device. Latched Out-Of-Sequence When Level Inputs are Out-Of-Sequence the fault data is copied and latched so that later an operator may view which inputs were previously Out-Of-Sequence. -
Page 10: Communication Port
ER, hold down the pushbutton on the DUPLEXER for 22 seconds.) When all the work using the TSID is completed, the power to the DUPLEXER must be cycled for any chang- es to the Communication Setup parameters to take effect. - Page 11 If communication with the SCADA system is lost while the pumps are being controlled remotely, the remote control commands will be automatically canceled upon the expiration of the Remote Control Command Cancel Delay. Momentarily turning off the electrical power to the DUPLEXER will also cancel the remote control commands.
- Page 12 ETHERNET PORT - ENET1 Description The Ethernet Port has the following features: Protocol Supported: Modbus TCP IEEE 802.3 Compliant Auto-negotiation of Communication Speed: 10 or 100 Mbps Auto-negotiation of Duplex Mode: Half or Full Duplex Link, and Active status LED indicators ENET1 LED Indicator...
- Page 13 SCADA REGISTERS SCADA Description of Register Contents Register Address (Where a Modbus Coil is represented by a Bit in a Register) Coil 40001 Coil 40002 Coil 40005...
- Page 14 SCADA REGISTERS Description of SCADA Data Registers 40004 Fault Code (FLC) 40051 Last Fault Code (LFC) 40006 Pump 1 Elapsed Time Meter (hours and 1/10 hours) Range: 0.0 - 6553.5 hours 40007 Pump 2 Elapsed Time Meter (hours and 1/10 hours) Range: 0.0 - 6553.5 hours 40008 Pump 1 Last Run Cycle Time (minutes and 1/10 minutes)
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Page 15: Connection Diagrams
CONNECTION DIAGRAMS Pump Down (Empty A Tank) Level Probe Input Float Switch Inputs Pump Up (Fill A Tank) Level Probe Input Float Switch Inputs... - Page 16 ENCLOSURE MECHANICAL LAYOUT Front View Side View Right Side View With Serial Port Bottom View Right Side View With Ethernet Port...
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