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P1-01: Pump Mode
Selects the base operation mode of the drive controller.
No. Parameter Name Setting Range Default
P1-01 Pump Mode 0, 1, 3 0
Setting 0: Drive only
Designed for single pump stand-alone applications
Setting 1: Contactor lag
Contactor Lag systems multiplex a main pump with up to 5 lag pumps. The drive will stage and de-stage the lag pumps based
on system demand by using its digital output contacts to control the lag pump motor starters
Setting 3: MEMOBUS network
Up to eight drives can be networked together to provide for system redundancy and precise control.
When P6-01 > 0, the Flow Rate can come from another drive on the MEMOBUS Network.
Setting P9-40 to 0 (Analog) will read the Flow Meter from the analog terminal (H3-oo = 22) or from the pulse input (H6-01
= 5), while setting P9-40 to 3 (Network) will read the Flow Meter information from the network. When there is no such drive
on the network, a “Net Flow Meter Lost, Chk Source” alarm is triggered for drives with P9-40 set to 3 (Network) and P6-01
> 0.
Staging is disabled when and the drive PI output is influenced by the Water Level / Suction Pressure Control.
The functions listed below will behave slightly different when P1-01 is set to 3:
• Start Level: Active on the first pump in the network. Drives in the process of alternation will not undergo this process.
• Sleep: Active when the drive is the only drive running on the network.
• Over-cycle Protection: Active when the drive is the only drive running on the network.
• Pre-charge: Active only on the first drive to run in the network.
• Low City Pressure: Active on any drive in the network. An alarm condition will cause other drives in the network to stop
running and show a “Net Pump Err” message.
• Utility Delay: When this function is active, the drive is unavailable to the iQpump MEMOBUS Network and will force the
Home Screen text to show “Pump Off Network”.
• Remote Drive Disable: When this function is active, the drive is unavailable to the iQpump MEMOBUS Network and will
force the Home Screen text to show “Pump Off Network”.
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P1-02: System Units
Selects the base unit in which most drive PID setpoints, scaling, monitors, limits, and faults/alarm levels will be set.
Note: Set this parameter prior to changing other parameters, as internal scaling is based on P1-02.
No. Parameter Name Setting Range Default
P1-02 System Units 0 to 10; 25, 26 1
Setting 0: No unit
Setting 1: PSI: Pounds per square inch
Setting 2: Pa: Pascals
Setting 3: Bar: Bar
Setting 4: "WC: Inch of water
Setting 5: "Hg: Inch of Mercury
Setting 6: ft: feet
Setting 7: m: meters
Setting 8: °F: Degrees Fahrenheit
Setting 9: °C: Degrees Celsius
Setting 10: Percent
Setting 25: Flow (Use P6-04)
Note: When using setting 25, the system units are set by parameter P6-04 and the PID feedback is re-routed to come from the flow meter, pulse
input (H6-01 = 5), or analog (H3-0o = 22).
4.7 Basic iQpump Setup and Application Preset Parameters
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YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
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