Grundfos Redi-Flo Series, Redi-Flo4, Redi-Flo2 Installation And Operating Instructions Manual

GRUNDFOS INSTRUCTIONS

For Sales & Service Contact

2650 E. 40th Ave. • Denver, CO 80205

Phone [phone] • Fax [phone]

1-800-833-7958

www.geotechenv.com

Redi-Flo Variable Frequency Drive

USA Installation and Operating Instructions

1

SAFETY NOTICE

This equipment contains voltages that may be as great as 1000 volts! Electrical
shock can cause serious or fatal injury. Only qualified personnel should attempt the
start–up procedure or troubleshoot this equipment.

PRECAUTIONS:

WARNING: Do not touch any circuit board, power device or electrical
connection before you first ensure that power has been
disconnected and there is no high voltage present from this
equipment or other equipment to which it is connected.
Electrical shock can cause serious or fatal injury. Only
qualified personnel should attempt the start–up procedure or
troubleshoot this equipment.

WARNING: Be sure the system is properly grounded before applying
power. Do not apply AC power before you ensure that
grounds are connected. Electrical shock can cause serious or
fatal injury.

WARNING: Do not remove cover for at least five (5) minutes after AC
power is disconnected to allow capacitors to discharge.
Electrical shock can cause serious or fatal injury.

CAUTION: Disconnect motor leads (T1, T2 and T3) from control before
you perform a “Megger” test on the motor. Failure
to disconnect motor from the control will result in extensive
damage to the control. The control is tested at the factory for
high voltage / leakage resistance as part of Underwriter
Laboratory requirements.

CAUTION: Do not connect AC power to the Motor terminals T1, T2 and
T3. Connecting AC power to these terminals may result in
damage to the control.

3

QUICK START GUIDE

QUICK START GUIDE

Note: The RediFlo trade name is used only in the United States, other parts of the world refer to the Redi-Flo2
pump as the MP1 and the Redi-Flo4 pumps as SPE. They may be referred to as either in this manual.

To operate the Redi-Flo VFD system, simply:

1. Submerge the Redi-Flo2 (MP1) or Redi-Flo4 (SPE) pump in the water to be pumped. (Note: insure pump is
rotating in the correct direction, see page 6)

2. Connect the motor leads to the Redi-Flo VFD. (Note: With RF4 Variable Performance Pumps you must have
an adapter cord to connect to Redi-Flo VFD.

#3 and #4 for operation with generator only. WARNING: Do not let the generator run out of gas while
powering the VFD. If it surges and creates excessive voltage, internal VFD damage could result.

3. If using a generator, start the generator and allow it to warm up.

4. If the generator has a circuit breaker, close the breaker and check the output
voltage from the generator. The output voltage must be within the specified
ranges (refer to Technical Specifications, at the end of this manual) to ensure proper operation and prevent
damage to the system. If the voltage is too high or too low, adjustments to the generator must be performed to
allow the system to run.

5. Plug the Redi-Flo VFD into a generator or connect to utility power supply. The unit accepts 115V or 230V
sources. Refer to the Input Power Terminals section for wiring instructions.

6. The VFD will initialize and be ready to drive the motor. After the initialization screen appears, the following will
be displayed:

1) Status (Stop or Fwd)

2) Pump type (MP1 or SPE)

3) Motor voltage (output voltage)

4) Motor current (output current)

5) Motor frequency (output freq in Hz)

MP1

1

LOCAL

2

3

4

DIAG STOP

MOTOR VOLTS 0.0V
MOTOR CURR 0.0A
MOTOR FREQ 0.00Hz

5

PROG 0.00r MAIN

The VFD defaults to MP1 (Redi-Flo2) operation. To change to Redi-Flo4 press:

1) Press PROG soft key

2) Press ENTER button

3) Use arrow button to switch between MP1 and SPE

s

4) Press ENTER button

5) Press DIAG soft key to return to main display

7. To begin pumping, press the FWD key to start the motor and use the and arrow keys to increase or

s

s

decrease speed. Continuous holding of the arrow key will increase the rate of speed change. The STOP key is
used to stop the pump.

8. Pressing the ENTER key allows the user to quickly set the speed to any given value by using the and

s

arrows to change speed and the left/right arrow keys to cursor between digits.

s

9. When powering down, unplug the Redi-Flo VFD from the generator BEFORE removing the motor lead from

the Redi-Flo VFD or turning off the generator.

4

PRE-INSTAllATION ChECKlIST

PRE-INSTALLATION CHECKLIST

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, (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).

Figure 1

Redi-Flo2®

Redi-Flo4®

Figure 2

Figure 3

PRE-INSTALLATION CHECKLIST

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, (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).

Figure 1

Redi-Flo2®

Redi-Flo4®

Figure 2

Figure 3

To operate the system you will also need:

1. A discharge hose or pipe to connect to the pump (See Figure 4).

2. An electrical plug to connect the Redi-Flo VFD power cord to your portable

generator may be needed if the supplied plug is not compatible with your generator (See Figure 5).

3. Safety cable and hardware for lowering and lifting the pump (See Figure 6).

Redi-Flo2®

Figure 6Figure 5

The exact type of plug used will depend
upon your generator, The Redi-Flo VFD
is supplied with a standard NEMA 5-15P,
115V, 3 prong plug.

Figure 4

Redi-Flo4®

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, (See Figure 1)

2. Either a Redi-Flo2® (MP1) pump and motor with lead (Figure 2) or a Redi-Flo4™ (SPE) Variable Performance
pump, motor, lead, lead/plug and RF4 x VFD adapter cord (Figure 3)

(MP1)

To operate the system you will also need:

1. A discharge hose or pipe to connect to the pump (See Figure 4).

2. An electrical plug to connect the Redi-Flo VFD power cord to your portable
generator may be needed if the supplied plug is not compatible with your generator (See Figure 5).

3. Safety cable and hardware for lowering and lifting the pump (See Figure 6).

4. The Redi-Flo VFD can alternately be operated from single-phase 230VAC supplies. This requires the
replacement of the standard power cord with a cord designed for 230V receptacles. Grundfos does not supply a
230V power cord.

(SPE)

5

ASSEMBlING ThE REDI-FlO VFD SYSTEM

230VAC

115VAC

RGNDNL2L1

Black GreenWhite

2 Bt/R1 B- T1 T2 T3 GND

To Motor

To Motor

RGNDNL2L1

Black GreenWhite

2 Bt/R1 B- T1 T2 T3 GND

Input power terminals

The input voltage can be changed between 115V and 230V by changing the line input connections as shown below:

Warning – If the Redi-Flo VFD is miswired for the incoming voltage, internal damage may occur to the drive.

Reverse Rotation Test

Connect the motor lead to the Redi-Flo VFD and test the rotation of the pump. Submerge
the pump in water, start it at its slowest speed and make sure the pump shaft is turning
counterclockwise (when viewed from the top). If the rotation is incorrect, switching any two
power leads (with POWER OFF) will correct the problem.

Attaching the Pump to the Pipe

When connecting piping to the pump, a back-up wrench should be used. After the first section of pipe has been
attached to the pump, the safety cable should be connected to the pump (as shown if figure 6). Do not clamp
to the pump. When raising the pump, be careful not to place bending stress on the pump by picking it up by
the pump end only. It is recommended that a safety cable be attached to the pump (using special brackets and
cables, sold separately) anytime plastic pipe or flexible tubing is used. A check valve may also be added to
Redi-Flo2® pumps to prevent fluid from flowing back into the pump after it is turned off (backflow prevention). A
check valve is standard on Redi-Flo4™ pumps. Always check to ensure joints are fastened securely. The use of
a torque arrestor is not required when using the Redi-Flo VFD.

Lowering the Pump into the Well

Make sure the electrical motor leads are not cut or damaged in any way when the pump is being lowered into
the well. Do not use the motor leads to support the weight of the pump. To protect against surface water entering
the well and contaminating the well, the well should be finished off utilizing a locally approved well seal.

The motor lead should be secured to the discharge pipe at frequent intervals to prevent sagging, looping and
possible motor lead damage. Teflon® wire ties are recommended for environmental applications.

Plastic pipe and tubing tend to stretch under load. This stretching must be taken into account when securing
the motor lead to the riser pipe or tubing. Leave three to four inches of slack between clipped points. This
tendency to stretch will also affect the calculation of the pump setting depth. When plastic pipe or tubing is
used, it is recommended that a safety cable be attached to the pump to raise and lower it. Redi-Flo4™ pumps
are designed to accommodate this cable and Redi-Flo2® pumps can be fitted with a safety cable bracket (part
number 1A0019).

Top

View

IMPORTANT

6

ASSEMBlING ThE REDI-FlO VFD SYSTEM

Operating Conditions

To ensure the Redi-Flo Variable Performance Pumping system operates properly, follow these guidelines:

• The Redi-Flo2® or Redi-Flo4™ pump must be installed vertically with the discharge end pointed upwards.

• The electrical voltage supply to the Redi-Flo VFD must always be within + or - 10% of the specified power
supply

• For best performance when operating on a generator, 115V generators should be set at 120V without load
and 230V generators should be set at 240V without load. Use a separate meter to set voltage; do not rely on
built-in meters found on generators.

• The pump and motor must always be completely submerged in fluid to ensure
lubrication and cooling of the motor.

• The temperature of the fluid being pumped should be according to the technical
specifications shown in the motor specifications.

• The installation depth of the pump should always be at least three feet below the maximum drawdown level of
the well.

• Redi-Flo pumps are not recommended for well development or pumping fluid
containing abrasives.

• Redi-Flo2® pumps are not recommended for continuous operation applications.

• The warranty of the Redi-Flo pumps will be void if other than the Redi-Flo VFD is used or if corrosive fluids
are pumped.

• The service life of dedicated Redi-Flo pumps may be compromised if the ambient water quality exceeds one
or more of the following values:

pH<5 DO>2 ppm H2S>1 ppm CL->500 ppm TDS>1000 ppm

Adherence to Environmental Regulations

When handling and operating the Redi-Flo Variable Performance Pump system, all environmental regulations
concerning the handling of hazardous materials must be observed. When the pump is taken out of operation,
great care should be taken to ensure that the pump contains no hazardous materials that might cause injury to
human health or to the environment.

Purging a Well

If the pump is used to purge a well, start the pump at minimum speed and gradually increase to desired speed.
Redi-Flo products are not recommended for well development.

Generator Usage

Minimum generator size (Redi-Flo2/Redi-Flo4)

For generators with voltage regulation 2500/3400 watts at 115/230VAC, single phase
For generators without voltage regulation 5000/6700 watts at 115/230VAC, single phase
Recommended for optimal performance 4000/5400 watts at 115/230 VAC, single phase
with voltage regulation

7

REDI-FlO VFD SPECIAl FEATURES

Dual Input Capability

Redi-Flo VFD can accept 115V or 230V single phase input voltage

Enclosure

The Redi-Flo VFD NEMA 4 enclosure is designed for outdoor duty and is resistant to damage as a result of
incidental exposure to rain.

UL Approvals

The Redi-Flo VFD is UL Listed to U.S. and Canadian electrical safety standards.

Dual Functionality

The Redi-Flo VFD can change from operating Redi-Flo2® (MP1) to Redi-Flo4™ (SPE) Variable Performance
pumps with a few keystrokes.

Torque Boost

The Redi-Flo VFD is equipped with a torque boost (voltage boost) feature to aid in start-up under severe
conditions.

Optimized Volts/Frequency (V/HZ) Pattern

The Redi-Flo VFD V/Hz pattern is specially optimized to allow the most efficient operation of Redi-Flo2® and
Redi-Flo4™ variable performance pumps.

8

REDI-FlO VFD KEYPAD OVERVIEW

JOG

Overview

The keypad is used to program the control parameters, to operate the pump and to
monitor the status and outputs of the pump.

Indicator Lights

JOG - (Green) lights when Jog is active.
FWD - (Green) lights when FWD direction is commanded.
STOP - (Red) lights when motor STOP is commanded.

JOG - Press JOG to select the
preprogrammed jog speed. After
the jog key has been pressed,
hold the FWD or REV keys to
run the motor in the direction that
is needed. The JOG key is only
active in the local mode.

FWD - Press FWD to initiate
forward rotation of the motor.
(Active in Local and Jog modes).

REV - Press REV to initiate
reverse rotation of the motor.
(Not active).

STOP - Press STOP to stop the
motor. This key is operational in
all modes of operation unless it
has been disabled by the Keypad
Stop parameter in the Keypad
(programming) Setup Block.

LOCAL - Press LOCAL to change
between the local (keypad) and
remote operation.

DIAG STOP LOCAL

MP1

MOTOR VOLTS 0.0V
MOTOR CURR 0.0A
MOTOR FREQ 0.00Hz

PROG 0.00r MAIN

s

(Left and Right Arrow).

s

Press or to move the

s

s

cursor when navigating through
the programming menus.

ENTER - Press ENTER to save
parameter value changes. In the
display mode the ENTER key
is used to directly set the local
speed reference. It is also used to
select other operations when
prompted by the keypad display.

HELP - Provides help at each
display screen, setup parameter
and fault. Press to view/close help
information.

PROG (soft key) - Press PROG
soft key to enter the program
mode. While in the program mode
the PROG key is used to edit a
parameter setting.

DIAG (soft key) – Press DIAG
soft key to return to the main
display window.

s

(UP and Down Arrow).

s

Press or to increment

s

s

or decrement the value of the
parameter being displayed. Also,
when the fault log or parameter
list is displayed, these keys will
scroll up and down through the
list. In the local mode pressing
the or key will increase or

s

s

decrease motor speed.

9

MOTOR CONTROl VIA KEYPAD

The Redi-Flo VFD can operate the motor in three (3) different ways from the keypad.

1. Speed adjustment using the Keypad arrow keys

2. Speed adjustment with Keypad entered values

3. JOG Command

1) Keypad arrow speed control

Press FWD, then press or hold the up arrow key to increase speed or use the down arrow key to reduce
motor speed. Continuously holding the arrow key will cause the speed to change in larger increments.

s

s

2) Keypad speed entered value

s

Press the ENTER key and use the keys to adjust digits and the keys to cursor to the desired digit.
Press ENTER when finished selecting desired motor speed to return to the display mode. Press and release the
FWD key to run the motor in the desired direction at the programmed speed. Press STOP to stop the pump.

s

s

s

3) JOG Command

The JOG key can be used to ramp the pump up to a predetermined speed in the forward or reverse direction.
Press the JOG key then hold the FWD key, and the pump will ramp to the speed set in PROG/Jog Settings/Jog
Speed. The pump will continue to run until the FWD key is released.

MENU/ESC key - Advanced Programming

For advanced programming features, please refer to the full programming guide found at the Baldor website:
www.Baldor.com The manual can be found under Support – installation and operation manuals. It is Baldor
manual number MN740, Series H2 Inverter.

10

MOTOR CONTROl VIA KEYPAD

Action Description Display Comments

Press Menu Displays top level menu options.

STATUS

QUICK SETUP

PROGRAMMING

EVENT LOG

DIAGNOSTICS

DISPLAY OPTIONS

KCABGAID

Press or to move cursor over
the “EVENT LOG” selection.

Press Enter to view the event log.

Event Log Display

LOW INITIAL BUS
0 Date
Time

Entry #
0-9

HH:MM

Displays error name,
Entry # and time the
error occurred.

DD/MM/YY

EV. LOG

ECARTSUTATS

LOW INITIAL BUS
0 4-Jul-06 09:35:00

LOCALSTOP

Press or to view next entry.

Press R to display Trace menu.
Press A to return to Status Menu.

Troubleshooting Guide

The RediFlo VFD requires very little maintenance and should provide years of trouble free operation when
installed and applied correctly. Occasional visual inspection and cleaning should be considered to ensure tight
wiring connections and to remove dust, dirt, or foreign debris which can reduce heat dissipation. Operational
failures or warnings called “Faults” are displayed on the keypad display as they occur. A log of these faults and
the time each occurred is kept in the Event Log.

Event Log

Press the Menu key, select Event Log and press Enter.
If an error is displayed during operation, press the “Help” key to learn more about the error. If more than one
error was logged, access the Event Log and examine each error entry at the time of the event to learn more
about the error.

11

FAUlT MESSAGES

Fault Messages

Table 5‐1 Fault Messages

Type Fault Message Display Description

No fault exists Control is operating properly, no faults recorded.
F Unknown system fault Reset the control. Restore parameter values to factory settings.
F Configuration Reset the control. Restore parameter values to factory settings.
F SPI timeout Serial Peripheral Interface (SPI) failure between control board and power board. Check connections.
F Param checksum Reset the control. Restore parameter values to factory settings.
F New base ID Changing the Power Base, Control board, or new firmware will most often cause this error.

Reset the control. Restore parameter values to factory settings.
F Over current Motor current exceeded peak limit. Check: motor connections, motor load, increase accel/decel times.
F Desaturation Output current exceeds desat limit. Check: motor for short circuit, motor load, increase accel/decel times.
F Ground fault Ground Fault detected (output current leakage to ground).

Disconnect motor, check motor for insulation leakage to ground.
F Logic supply Logic power supply failure detected.
F Power Base Fault Usually occurs with other faults. Fault detected in power base, see FPGA in event log trace.
F Low Initial BUS Bus volt less than 200/400/500V on 230/460/575V units at power up. Check: line volt, resistors on R1/ R2.
F Current Sense Occurs on power up, motor current sensor(s) out of tolerance.
F User ref Internal reference power supply out of tolerance.
F User 24 V 24V at J1-23 and J1-24 out of spec. Check 24V, if below, remove wiring from terminal strip, re-check.
F Current reference Reference volt for current readings out of tolerance.
F Overload - 1 minute Peak output current exceeded the 1 minute rating value. Check motor and wires, Level 2 Pk CUR Limit value,

Accel time or reduce motor load. Change Level 2 Drive Protect, Overload to “Foldback” and try again.
F Overload - 3 seconds Peak output current exceeded the 3 second rating value. Check motor and wires, Level 2 Pk CUR Limit value,

Accel time or reduce motor load. Change Level 2 Drive Protect, Overload to “Foldback” and try again.
F Motor Overload Motor current exceeded preset limits: 125% for 590 sec., 150% for 150 sec. or 200% for 50 sec.
F Following Error Speed error beyond Set Speed Band parameter value. Verify motor is not overloaded.
F DC Bus High DC Bus V over 405/810/1000V for 230V/460V/575V units. Check line volt, decel rates, resistor on R1/ R2.
F DC Bus Low DC Bus V below 220/440/550V for 230V/460V/575V units. Check line volt, B+ to B- voltage.
F Drive Over TEMP Heatsink temp exceeded 85/95qC. Verify ambient does not exceed 45qC. Clean fans and heatsink.
F Drive Low TEMP Heatsink temp is less than allowed (-10qC).
F External trip Connection at J2-16 is open and P2201 is set to ON.
F Torque Proving Failed to measure current in one or more motor phases. Check motor connections or open motor contacts.
F Regen R or PWR Excessive resistor power dissipation. Check resistor ratings, extend decel times, or add larger braking kit.
F EEPROM fault (Powerbase EE,

Control EE, Flt Log Mem, NV memory)

EE memory. Reset the control. Restore parameter values to factory settings.

F Internal Config Software boot error. Reset the control. Restore parameter values to factory settings.
F Dyn Brake Desat Dynamic braking current limit exceeded. Check for shorted braking resistor circuit.
A Line Loss All 3 input phases lost. Check input circuit breaker, fuses or input contacts.
A Phase Loss One input phase lost. Check input circuit breaker, fuses or input contacts.
F U Upper Fault Power transistor gate fault on T1.
F U Lower Fault Power transistor gate fault on T1.
F V Upper Fault Power transistor gate fault on T2.
F V Lower Fault Power transistor gate fault on T2.
F W upper fault Power transistor gate fault on T3.
F W lower fault Power transistor gate fault on T3.
F Ph 1 pulse Phase 1 (T1) curr limiting via pulse by pulse method; check motor: spiking loads, chattering contacts.
F Ph 2 pulse Phase 2 (T2) curr limiting via pulse by pulse method; check motor: spiking loads, chattering contacts.
F Ph 3 pulse Phase 3 (T3) curr limiting via pulse by pulse method; check motor: spiking loads, chattering contacts.
F Network Timeout Forced network fault. Possible reason: watchdog, timing, user control.
F Memory Option card problem, memory failure.
A Aux Filter Setup Filter Source should be set to Raw Speed when destination is set to Speed Loop.
F Power Base FPGA Power base communication loss or invalid FPGA version.
A Sel FB Source Encoder Source Not Selected/Feedback Board is absent. Choose the appropriate card for encoder feedback.

F = Fault, A = Alarm

12

FAUlT MESSAGES – (CONTINUED)

Table 5‐1 Fault Messages Continued

Type

Fault Message Display Description

F Download Parameter download from keypad or network has failed. Verify parameter set compatibility.
F Parameter Parameters momentarily locked. Wait 30 seconds, try again
A Invalid FB Sel Feedback board not installed on this slot. Select an encoder feedback board as encoder source.
F ADC Calib Fault Internal ADC calibration voltages out of range.
F Encoder Loss Encoder detected but has poor or no signal. Check encoder wiring.
F Over Speed Rotor speed over 110% maximum speed limit.
F DC Bus Short For UL testing only. Call Baldor for service.
A Motor Overtemp Motor has overheated, check: cooling system or blocked air flow.
A Fan Loss Fan circuit is seeing low current or over current. Check fan circuit.
F DC PK Overvolt Bus peak voltage rating exceeded. Check: AC input lines; sizing of dynamic brake.
A Line Sag All 3 phase input lines have sagged below 70% of nominal. Check input line quality
F Brake Desat Dynamic brake de-saturation has occurred. Check dynamic brake circuit.
F Pre-charge Fault Dynamic Brake miswired, AC Input too low, Bus Capacitors shorted or Input Single Phasing
A Drive Disabled Motion command given with drive disabled. Check: drive enable input.
A Drive Enabled Drive enabled during parameter download. Drive must be disabled.
A PB Power Supply Power base logic power supply output is too low.
A AC Input High Correct the AC input line voltage high condition.
A Initial Pos The initial position reading from the absolute position feedback could not be read or is out of expected range.
A Invalid Res Sel The feedback source selected is not a resolver board
F Resolver Loss Resolver detected but has poor or no signal. Check resolver wiring
A PF Setup Pulse follower option board setup incorrect. Check Master PPR, receive, transmit ratio and input type.
A Option Not Found Option Board for the feature requested is not installed.
F Pos Cnt Overflow Position counter has has exceeded max or min range.
A Opt1 Protocol or Opt2 Protocol Invalid protocol selected for OPT communication card 1 or card 2.
A Excess Faults/Hr The allowed number of faults/hour has been exceeded.
F Motor Overload Motor overloaded. Check motor load. Verify motor rated amps parameter.
F PLC Mode Trip PLC Mode Trip. PLC action has generated this trip. Check PLC program logic.
F Macro Read Read macro from EE PROM failed.
F Macro Rec Length Macro end command was not found during macro execution.
F Macro CMD Inval Invalid macro command was found.
F Macro CMD Failed Execution of a macro command generated an error.

F = Fault, A = Alarm

13

TEChNICAl SPECIFICATIONS

DESCRIPTION MP1 SPE

Part I Rated Power & Markings

Single Phase Input Voltage 115V +/- 10% or 230V +/- 10%

Output Voltage 3 X 230V

Continuous Output Current 8.7A @1x115v (input)

Part II Fundamental Parameters

Control System PWM

Output Voltage Clamp @ 230V

Carrier Freq. Selectable: 1-5 KHz

Freq. Resolution 0.01Hz

Input Freq. Range 48 – 62 Hz

Maximum Output Frequency 400 Hz 100 Hz*

Base Frequency 400 Hz 100 Hz

Torque Boost 0 – 15% Nominal Voltage

V/F Pattern Selectable Linear/Square Law

Accel Time 0 – 3600 Seconds

Decel Time 0 – 3600 seconds

Accel/Decel Pattern Linear

* The SPE can operate up to 100Hz on 115v but in cases of higher pump loads the motor amperage
could exceed the VFD output rating, causing an over amperage fault.

14

TEChNICAl SPECIFICATIONS

Part III I/O Capabilities

+24VDC +24VDC, 200 mA supply

Common 24VDC common

2 Analog Ouputs 0-5VDC, function programmable

Analog Input

Digital Inputs Start, Stop, Reset

Digital Opto-Outputs 60 mA, 10-30VDC, function programmable

Digital Relay Outputs

Part IV Protective Functions

Ground Fault Ground Fault detection for Equipment Protection

Overcurrent Output Short Circuit

Over Voltage 400VDC

Under Voltage 200VDC

Motor Overload Vt & Ct = 150% for 60sec

Line Start Lock Out VFD will not start upon input power application

Line Transient Rating 860 VAC, 810J MOV Between any power input

0-5VDC, 0-10VDC, 4-20mADC, Potentiometer,

for speed control

5 A, 10-30 VDC or 230 VAC function

programmable

Locked Rotor

terminal & Ground

360 VAC, 380 J MOV Between any two power

input terminals

Part V Ambient Operating Conditions

Operating Temp. -10 to 45 degree C

Storage Temp. -10 to 65 degree C

Humidity 10 to 90% RH, Non-Condensing

Vibration 0.5G, Max / 10-60 Hz

Elevation 3300 ft. without derating

Max source fault current 5 Kamps

Enclosure rating UL Type 4, No Direct Sunlight

15

Being responsible is our foundation

Thinking ahead makes it possible

Innovation is the essence

WARRANTY SERVICE

To obtain warranty service, contact the Distributor or Dealer from which it was purchased

to obtain instructions. Under no circumstances should defective product be returned to the

Distributor, Dealer, or GRUNDFOS without a Return Materials Authorization (RMA).

L-RF-IO-011 R

PRINTED IN USA

U.S.A.

GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Telefax: [phone]

ev. 2/08

www.grundfos.com

Canada

GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: [phone]
Telefax: [phone]

Mexico

Bombas GRUNDFOS de Mexico S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. Mexico
Phone: [phone]
Telefax: 011-52-81-8144 4010

Subject to alterations.