Pump Application Interface
description
Transcript of Pump Application Interface
Pump Application Interface
30 October 2006
Overview
• Increases the functionality of the soft starter for pumping applications - four additional trip inputs.
• Eliminates the need for external relays, timers, mini-PLCs, etc.
• Provides a simple, cost effective solution for pump control systems
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Functionality
• Low Pressure input (0–20 min enable delay, 0–60 sec trip delay)
• High Pressure input (0 – 60 sec trip delay)• Low Water Level input (0 – 60 sec trip delay)• PT100 input (selectable trip temperature, Off –
250ºC)• N/O or N/C input selection• Common trip relay output• Powered and reset from the soft starter
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Physical layout
• 5 x rotary switches (configure trip delays and trip levels)
• 1 x 3-way DIP switch (configure digital input logic)
• 4 x status LEDs (indicate state of each input)
Low pressure
High pressure
Low water level
PT100
LED FunctionLow Pressure On = input closedHigh Pressure Off = input openLow Water Level Flashing = trippedPT100 On = connection healthy
Off = input disabledFlashing = tripped
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Terminal layout
• 13 way removable terminal block
• 1.5mm2 maximum cable capacity
• 30 metre maximum cable run for digital inputs using unshielded cable
• 150 metre maximum cable run for PT100 input using twisted pair/shielded cable
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Electrical layout1 Trip output2 Low water level input3 High pressure input4 Low pressure input
A: 2-wire connectionB: Shared common connection
5 PT100 inputC: 2-wire connectionD: 3-wire connectionE: 4-wire connection
Remote input connections are still required to control the soft starter
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Low pressure input (A)
• Input is only monitored in Run mode after the Enable Delay has elapsed
• Trip action occurs if the input is activatedfor the Trip Delay period
• Coast to stop after trip• Select for N/O or N/C input
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High pressure input (B)
• Input is only monitored in Run mode
• Trip action occurs if the input is activatedfor the Trip Delay period
• Coast to stop after trip• Select for N/O or N/C input
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Low water level input (C)
• Input is monitored in all modes• Trip action occurs if the input is
activatedfor the Trip Delay period
• Coast to stop after trip• Select for N/O or N/C input
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PT100 input
• Input is monitored in all modes (@ 40ºC-250ºC setting)
• Input is disabled when set to Off• Trips if the monitored temperature
is reached for more than 2 seconds• Coast to stop after trip• Trips on open or short circuit input
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PT100 input
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Trip relay output
• Output activates on trip (interface or soft starter)
• Single pole-changeover• 2A @ 400 VAC inductive,
6A @ 30 VDC resistive
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Input configuration
• High Pressure, Low Pressure and Low Water Level digital input logic is selected using DIP switches A, B, C
• N/O: open = healthy input closed = trip
• N/C: closed = healthy input open = trip
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Submersible Pump
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Compressor Oil Pump
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PIM-PA-01