VARIABLE SPEED PUMP CONTROLLER

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VARIABLE SPEED PUMP CONTROLLER
MPCSV
Techsys Corporation
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FUNCTION

• The MPCSV will control up to 3 pumps to maintain
  a
• Uses a stand alone Variable Speed Drive frequency
  Inverter for Speed Control

CONSTANT PRESSURE
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APPLICATIONS
Irrigation
Air-conditioning
Mechanical Services
Sewerage pumping
SIMPLE VERSATILE
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OPERATION
Main design function Hold the SET POINT
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TYPICAL OPERATION
PUMP SPEED INDICATOR Hz
10
20
30
40
50
10
20
30
40
50
10
20
30
40
42
SET POINT
ON/OFF
SYSTEM PRESSURE GAUGE

• EACH PUMP IS STARTED
• ON THE VFD

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TYPICAL OPERATION
PUMP SPEED INDICATOR Hz
50
42
40
30
20
10
40
30
20
10
50
40
30
20
10
SET POINT
ON/OFF
SYSTEM PRESSURE GAUGE
PUMPS PICKED UP ON THE FLY ON THE WAY DOWN
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OPERATION
VFD rotates from one pump to the next
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OPERATION
The change over from VFD to DOL visa versa
is PHASE SYNCHRONIZED Change over time 40msec
No pressure spike on change over either UP or
Down
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CONTROL FEATURES

• Up to 3 pumps
• Independent control
• Full system status via LED indicators and real
  text LCD
• Easy setup menu screens
• In-built system protection
• 8 Programmable Inputs
• 4 Programmable Outputs
• Set point control to 2
• Smart protection restart
• Flow calculation
• Pressure trip relays

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SELF CONTAINED

• Comes complete in a IP54 enclosure
• All switchgear included
• VFD included
• Full fan forced cooling thermostat controlled
• 40 degC rated

Just connect MAINS POWER PUMPS - ready to GO
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MENU OPERATION

• System pressure
• Flow rate / min
• Flow Total
• Pump 1 Hour Run
• Pump 2 Hour Run
• Pump 3 Hour Run
• Fault History
• Access Code
•  
• SETTINGS
• TUNING
• TIMING
• CONFIGURE
• OUTPUTS
• INPUTS

Display Menus Available for all operators
Main Menus Available for all operators
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MENU OPERATION
Main Menus
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SUB MENUS
SETTINGS
Sub Menus Available after Access Code Entered
LoPress Shutdown Cut In Pressure Set Point Hi
Pressure Limit HiPress Shutdown Pump Flow
Rate Friction Loss Set Point 2 Set Point
3 PressureTrip1low PressureTrip1Hi PressureTrip2lo
w PressureTrip2Hi
Site Settings
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SUB MENUS
TUNING

• Minimum Frequency
• Response Rate
• Acceleration
• Anti Cycle
• Auto-Rotation
• Fault Restarts
• Shutdown Boost

Site Adjustment
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SUB MENUS
Site Timing
TIMING

• Low Pressure Delay
• High Pressure Delay
• IN Delay Timer
• OUT Delay Timer
• Shut down delay
• Input Delay Time

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SUB MENUS
CONFIGURE
System Settings

• Transducer Zero
• Adjust Pressure
• Averaging
• Access Code
• VFD Options
• DOL Backup Mode

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SUB MENUS
INPUTS / OUTPUTS
Programmable Output 1 Programmable Output
2 Programmable Output 3 Programmable Output
4 Programmable Input 1- 8

• Telemetry
• Communication

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DATA LOGGING

• Flow Total
• Hour Run meters
• Fault History

Full report history For fault finding and
Historical data
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FLOW MONITORING

• MPCSV has flow rate calculations on board
• Instantaneous flow
• Totaled Flow
• Based on average flow rate but varied depending
  on VFD speed and number of pumps running
• Accuracy /- 10

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HOUR RUN
Each pump has an HOUR RUN METER
To reset press ENTER DOWN
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FAULT MONITORING
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FAULT MONITORING
When a fault is current the display changes
from SYSTEM PRESSURE to NEW
FAULT This allows the operator to inspect the
log at his leisure

• NEW FAULT

• 1234

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FAULT RESTARTS

• After a HIGH PRESSURE SHUTDOWN the MPCSV can be
  Automatically restarted via the FAULT RESTART
  Option.
• If selected the system will restart after a
• high pressure shut down fault for the number
  
• entered

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VFD OPTIONS

• VFD Type
• Standard
• Normal VFD Configuration
• Duty / Backup
• Two VFDs one to take over in case of failure.
  Only one units operates under normal operation
• Duty / Standby
• Two VFDs They alternate in operation each time
  the system comes to rest or the pumps are
  triggered to cycle.

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DOL BACKUP MODE

• If a VFD fails and there is no backup for it the
  MPCSV can be programmed to operate as a Fixed
  Speed Pressure System
• MPCSV will attempt to restart the VFD
• 3 times at 15 second intervals
• The Pumps will start and stop a pressure points
  on either side of the set point.

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DOL BACKUP MODE
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OUTPUTS

• 4 Programmable OUTPUTS
• Change over contacts for
• NO / NC operation

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OUTPUTS FAULTS

• Fault Reporting
• Range of information about the fault status of
  the system

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OUTPUTS

• Status Reporting
• Information about the status of the system

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OUTPUTS

• External use relays
• Can be used to drive other appliances

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OUTPUTSPRESSURE TRIP

• Use for
• Jockey Pump
• Filters
• Control devices
• Alarms

Pressure Trip allows the relay to open at Low
pressure and close at high pressure
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OUTPUTSALTERNATE TRIP
Built in FLIP FLOP SWITCH
Relay will toggle locations after each shutdown
or Forced Lead pump Cycle Use for load sharing
devices
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INPUTS

• 12 Digital Inputs
• 4 Fixed Function
• 8 Programmable
• Analogue Inputs
• 4-20mA
• 0-10VDC
• Fully adjustable in software

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INPUTS

• 4 Fixed Function
• Pause
• Protection Pump 1
• Protection Pump 2
• Protection Pump 3

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INPUTS

• 15 Programmable options
• Allows full remote control
• Allows flexibility for all applications

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INPUTS

• FIRE MODE All protections are disabled
• Cycle Pumps - Cycles the lead pump
• Reset Resets all shut down faults
• Soft pause Stops the system in a controlled
  manner
• Shutdown verify Flat curved pumps verify no
  flow
• No flow Protection for no flow in the
  system

SMART CONTROL
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MULTIPLE SET POINTS

• Set Point 2 and 3 are selected by closing the
  associated Input
• Ideal for
• Building management
• Air conditioning
• Town water supply
• Sub-division

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SENSORS

• MPCSV comes with
• an onboard
• PRESSURE TRANSDUCER
• Will accept any 4-20 mA or
• 0-10VDC sensor input

• Standard transducer
• Bridge Rectifier style transducer
• Operating pressure 0-250psi
• Burst 500 psi
• Fluid temp 50 degC

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PROTECTION
Thermistor
Pressure / LoP switch
Temperature Switch
No flow switch
Auxiliary Contact Overload

• This protection is ideal for the
• following sensors 
•           Flow switch for each pump
•           Temperature switch
•           Under current relays - for sensing low
  flow
•           loss of prime pressure switches

Current Transformer
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VFD FAILURE

• Standard Mode
• Once failure is detected-
• MPCSV shuts down the VFD
• Waits 15 seconds
• Attempts to restart
• Continues ad infinitum
• Duty / Backup Duty / Standby Mode
• Once failure is detected
• Changes VFD
• Detects a fault
• Shifts to Standard VFD mode

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FRICTION LOSS

• Automatically add pressure to the
• set point based on flow rate
• Designed to compensate for friction loss

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PAUSE MODES

• MPCSV can PAUSE from an external input
• EMERGENCY PAUSE
• Instant shutdown restart via standard method
• SOFT PAUSE
• Controlled shutdown based on the set point
  dropping to ZERO

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PUMP LEAD PUMP CYCLE

• The lead pump can be cycled on
• External Signal
• From time clock
• BMS signal
• SCADA Signal
• External function eg filter backwash
• Time base on a 24hr Basis
• Accurate 2 ie 28 min in 24hr

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SHUTDOWN

• The pump system will shut down when
• Only 1 pump running
• Shutdown Boost and measures the time taken to
  return to the Set Point

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PID CONTROL

• The set point control used is a PID Variant
  designed by Techsys Corporation RD engineers
  Achieve 2 at set point
• Designed for pumps
• Forward looking
• System response controlled by RESPONSE RATE
• Damping by Acceleration and Deceleration

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LEAD VFD - LAG SOFT STARTER

• Multiple pump
• First pump started is the VFD pump
• Lag pumps operate on fixed speed
• Set point 20

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ONE VFD PER PUMP

• Operational VFD on each pump
• When extra pumps are required the system calls in
  additional VFD/Pump combinations
• The system can have all of the VFDs functioning
  at a speed
• All pumps vary the speed together

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CASCADING VFD SYSTEM

• VFD starts on First pump
• As the load increases the First pump is switched
  to fixed speed
• The second pump starts on VFD etc.

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CONTROL MODES

• Pressure
• Level
• Temperature
• Any analogue input for
• Constant Operation