Grundfos Redi-Flo 2, Инструкция по установке и эксплуатации

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Redi-Flo Variable Frequency Drive
For more detailed information on the following features, see Operator Adjustments and
Redi-Flo VFD Inputs & Outputs on page 11-12 and 15-16).
Dual Input Capability
Redi-Flo VFD can accept 115V or 230V input voltage available in one unit
Enclosure
The Redi-Flo VFD NEMA 1 enclosure is designed to provide a degree of protection against
personnel contact with the internal electrical components. Care must be used to prohibit
moisture from coming into contact with the unit.
UL Approvals
The Redi-Flo VFD is UL Listed to U.S. and Canadian electrical safety standards.
10-Turn Potentiometer
The Redi-Flo VFD is equipped with a "10-Turn Pot" for finer adjustment of motor speed and
pump performance.
Dual Functionality
The Redi-Flo VFD can change from operating Redi-Flo2 ® (MP1) to Redi-Flo4™ Variable
Performance pumps with a turn of a dial.
Output Ground Fault Protection
Built-in ground fault sensing for protection of Redi-Flo VFD and down hole equipment.
Grundfos Repairable
The Redi-Flo VFD can be repaired at all Grundfos Customer Service Centers for fast turn-
around.
Dry Run Protection (Input Undercurrent Trip)
The Redi-Flo VFD can protect pumping equipment from damage as a result of "dry run"/ "pump
off" conditions at frequencies above 50 HZ for Redi-Flo4™ and above 300 HZ for Redi-Flo2
®
.
This feature can be further configured for automatic restart of the Redi-Flo VFD after a time
period adjustable from 1 to 99 minutes.
Output Frequency Limited by Input Current
The output frequency is clamped when the input current reaches 16.0 amps, regardless of
input voltage. The clamped output frequency prevents overload of 20 amp circuit breaker and
portable 115V generator sets.
Torque Boost
The Redi-Flo VFD is equipped with an adjustable torque boost (voltage boost) feature to aid
in start-up under severe conditions.
Optimized Volts/Frequency (V/HZ) Pattern
The Redi-Flo VFD V/
f
pattern is specially optimized to allow the most efficient operation of
Redi-Flo2
®
and Redi-Flo4™ variable performance pumps.
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REDI-FLO VFD SPECIAL FEATURES REDI-FLO VFD SPECIAL FEATURES
External Speed Reference Signal Following Capability
The Redi-Flo VFD will follow an external 4-20 mA speed reference signal when the mode
selector dial is switched from Manual to Automatic Operation (RF2A and RF4A).
Isolated 24 Volt DC Power Supply
The Redi-Flo VFD is equipped with an isolated 24 VDC-100 mA power supply for use as a loop
power source for an external 4-20mA transducer (transmitter) or flowmeter.
On/Off Control Terminals
The Redi-Flo VFD provides easy connection of liquid level controls for on/off operation.
Auxiliary Contacts
1. Redi-Flo VFD run acknowledge: contact closed when Redi-FloVFD is powered and
ready for operation (i.e., RSR switch in run position).
2. Redi-Flo VFD fault annunciation: "Form C" contacts closes upon fault. Annunciated
faults are over temperature ( ), under voltage( ), over voltage( ), motor
overload ( ), VFD overload ( ), ground fault ( ), over current ( ), and under
current ( ), under current 1 ( ) under current restart ( ).
3. Speed reached acknowledge: contact closed when Redi-Flo VFD has reached the
speed/frequency set on the10-turn potentiometer. Typically used to enable
external timers or counters.
NOTE: All contacts rated 2A at 250 VAC/30 VDC.
Frequency/Fault/Status Display
The Redi-Flo VFD has an easy to read,
3 /
4
" high–7segment LED, frequency display and
fault annunciation. A four (4) place digital frequency display (XXX.X) and fault code
annunciation ensure precise adjustment and easy diagnostics. See Troubleshooting
section, pages 17-18.
Figure 3
Components of Your Redi-Flo VFD System
Your Redi-Flo Variable Performance Pump system should contain the following
components:
1. Redi-Flo Variable Frequency Drive, SI/MP1-115/230V (See Figure 1)
2. Either a Redi-Flo2® pump and motor with lead
(Figure 2) or a Redi-Flo4™ Variable Performance
pump, motor, lead,lead/plug and RF4 x VFD
adapter cord (Figure 3).
PRE-INSTALLATION CHECKLIST
The pump
will be
stored
here
Figure 2
Figure 1
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