Franklin Electric SubDrive75 User manual

SubDrive75/100/150/300/2W
MonoDrive, MonoDriveXT
Status
État
Estado
Constant Pressure Controller
Installation Manual

s WARNING
!
Serious or fatal electrical shock may result from failure to connect the ground terminal to the motor,
SubDrive/MonoDrive controller, metal plumbing, or other metal near the motor or cable, using wire
no smaller than motor cable wires. To minimize risk of electrical shock, disconnect power before
working on or around the SubDrive/MonoDrive system. CAPACITORS INSIDE THE SUBDRIVE/
MONODRIVE CONTROLLER CAN STILL HOLD LETHAL VOLTAGE EVEN AFTER POWER HAS BEEN
DISCONNECTED.
ALLOW 5 MINUTES FOR DANGEROUS INTERNAL VOLTAGE TO DISCHARGE BEFORE REMOVING
SUBDRIVE/MONODRIVE COVER.
Do not use motor in swimming areas.
Before Getting Started
s ATTENTION
!
This equipment should be installed by technically qualied personnel. Failure to install it in compliance
with national and local electrical codes and within Franklin Electric recommendations may result in
electrical shock or re hazard, unsatisfactory performance, or equipment failure. Installation information
is available through pump manufacturers and distributors, or directly from Franklin Electric at our
toll-free number 1-800-348-2420.
s CAUTION
!
Use SubDrive/MonoDrive only with Franklin Electric 4-inch submersible motors as specied in this
manual (see Table 1, pg. 4). Use of this unit with any other Franklin Electric motor or with motors from
other manufacturers may result in damage to both motor and electronics.

Contents
Declaration of Conformity..........................................................4
Description and Features ..........................................................5
Included Items...................................................................6
How It Works .................................................................. 7-8
Pump Sizing and Drive Conguration
• SubDrive75....................................................................9
• SubDrive100..................................................................10
• SubDrive150..................................................................11
• SubDrive300..................................................................12
• SubDrive2W ..................................................................13
• MonoDrive ...................................................................14
• MonoDriveXT .................................................................15
Underload Sensitivity for Deep Wells............................................. 16-18
Steady Flow Selection............................................................19
Sleep Mode ....................................................................20
Underload Smart Reset...........................................................20
Over Temperature Foldback .......................................................20
System Run Relay - SubDrive300 (SubDrive2W) .......................................21
Generator Sizing ................................................................22
Controller Location Selection ................................................... 22-23
Quick Reference Guide ........................................................ 24-27
Circuit Breaker and Wire Sizing ....................................................28
Pressure Tank ..................................................................29
Installation Procedure ............................................................30
Wiring Connections........................................................... 31-33
Special Instructions for Outdoor Installation ..........................................34
Strain Relief Installation Guide .....................................................35
Start-Up and Operation...........................................................36
Specications
• MonoDrive ...................................................................37
• MonoDriveXT .................................................................37
• SubDrive75...................................................................38
• SubDrive100..................................................................38
• SubDrive150..................................................................39
• SubDrive300..................................................................39
• SubDrive2W ..................................................................40
Mounting Dimensions ........................................................ 41-43
Accessories ....................................................................44
Diagnostic Fault Codes................................................... Back Cover
System Troubleshooting Guide............................................. Back Cover
Tables
1. SubDrive and MonoDrive Models..................................................4
2. Circuit Breaker and Wire Sizing ..................................................28
3. Maximum Cable Length ........................................................28
4. Minimum Pressure Tank Size ....................................................29
5. Pressure Tank Pre-charge.......................................................29
6. Minimum Pipe Diameter ........................................................29
Figures
1. Smart Reset Well Recovery Time .................................................20
2. Shipping / Mounting / Lid Screws ................................................30
3. Motor Lead Connections .......................................................31
4. Power and Pressure Sensor Connections ..........................................32
5. Pressure Sensor / Pressure Shut-off Sensor ........................................33

4
SubDrive/MonoDrive
Model Name Part Number Use with Motor Series
SubDrive75
5870203380 (NEMA 1)
234 514 xxxx (1.5 hp (1.1 kW))
5870203384 (NEMA 4)
SubDrive100
5870204100 (NEMA 1)
234 315 xxxx (2.0 hp (1.5 kW))
5870204104 (NEMA 4)
SubDrive150 5870204150 (NEMA 1) 234 316 xxxx (3.0 hp (2.2 kW))
5870204154 (NEMA 4)
SubDrive300 5870206300 (NEMA 4) 234 317 xxxx (5.0 hp (3.7 kW))
SubDrive2W 5870203223 (NEMA 3R)
244 505 xxxx (1/2 hp (0.37 kW))
244 507 xxxx (3/4 hp (0.55 kW))
244 508 xxxx (1.0 hp (0.75 kW))
MonoDrive 5870203110 (NEMA 1) 214 505 xxxx (1/2 hp (0.37 kW))
214 507 xxxx (3/4 hp (0.55 kW))
5870203114 (NEMA 4) 214 508 xxxx (1.0 hp (0.75 kW))
MonoDriveXT 5870204110 (NEMA 1) 224 300 xxxx (1.5 hp (1.1 kW))
5870204114 (NEMA 4) 224 301 xxxx (2.0 hp (1.5 kW))
Table 1: SubDrive and MonoDrive Models
Declaration of Conformity
Franklin Electric declares under our sole responsibility, all SubDrive/MonoDrive series 587
020 3xx0 controllers are in conformity with the Council Directives on the approximation to
the laws of the EEC member states relating to the following:
- Electromagnetic Compatibility (89/336/EEC): Adjustable Speed Electrical Power Drive
Systems: Standard EN61800-3
- Low-Voltage Electrical Safety (73/23/EEC) (amending 93/68/EEC): Safety of Household
and Similar Electrical Appliances: Standard EN60335-1

SubDrive/MonoDrive
5
Description and Features
The Franklin Electric SubDrive/MonoDrive is a dependable residential water system controller
that uses advanced electronics to enhance the performance of standard submersible pumps.
When used with the specied Franklin Electric motor (see Table 1, pg. 4), the SubDrive/
MonoDrive eliminates pressure cycling associated with conventional water well systems and
owners of private water well systems can enjoy “city-like” water pressure.
In addition, the reduced tank size (see Table 4, pg. 29) allows installation in small spaces.
SubDrive/MonoDrive Key Features:
• Constant water pressure with a wide range of settings (25-80 psi) (1.7-5.4 bar)
• Smaller pressure tank can be used
• Fits the pump to the application – pump speed is controlled to provide
the optimum performance without overloading the motor
• Flexibility – this unit can be used with standard off-the-shelf pumps
• No in-rush (power-on transient) current
• Low motor start-up current (soft-starting)
• Active Power Factor Correction minimizes input RMS current
Protection Features:
• Dry well conditions – with smart pump monitoring (see Figure 1, pg. 20)
• Bound pump – with auto-reversing torque
• High voltage / lightning surge
• Low line voltage
• Open motor circuit
• Short circuit
Status
État
Estado

6
SubDrive/MonoDrive
A. Controller Unit
B. Pressure Sensor and Boot
C. Sensor Adjustment Tool
D. Sensor Cable
E. Installation Guide
SubDrive75/100/150/30 0
MonoDrive, MonoDriveXT
NEMA 1 / NEMA 4
Quick Installation Guide
■
English ........1
■
Français.....12
■
Espanol......22
Status
État
Estado
A
E
C
D
B
Included Items (NEMA 4)
SubDrive75/100/150
MonoDrive/MonoDriveXT
BLACK
RED RED
YEL BLK
(BRN)
E4
(BLU)
GND
(OUTPUT)
E3
RV2
E5
E1
E2 E6
TO
L1 L2
(INPUT)
RED
YEL
INPUT
FILTER
TO
OUTPUT
FILTER
RV1
BLK
225505101REVB GND
J2
J1
RV4
RV3
RV8
RV9
RV10
SENSOR
213
3FAN
SW2
PRESSURE
SW1 2
4
14
R1
ADJUST
SubDrive75/100/150/300
MonoDrive,MonoDriveXT
NEMA 1 / NEMA 4
Quick Installation Guide
■
English........ 1
■
Français.....12
■
Espanol......22
A
E
C
D
G
F
B
A. Controller Unit
B. Pot Adjustment Screw Driver
C. Pressure Sensor and Boot
D. Sensor Adjustment Tool
E. Sensor Cable
F. Installation Guide
G. Access Cover
A. Controller Unit
B. Pot Adjustment Screw Driver
C. Pressure Sensor and Boot
D. Sensor Adjustment Tool
E. Sensor Cable
F. Installation Guide
G. Strain Relief Fittings
H. Pressure Shut-off
Switch and Boot
SubDrive75/100/150/300
MonoDrive,MonoDriveXT
NEMA 1 / NEMA 4
Quick Installation Guide
■
English........ 1
■
Français.....12
■
Espanol......22
A
E
C
D
G
F
BH
Included Items (NEMA 4)
SubDrive300
Included Items (NEMA 3R)
SubDrive2W
A. Controller Unit
B. Strain Relief Fittings
C. Pressure Sensor and Boot
D. Sensor Adjustment Tool
E. Sensor Cable
F. Installation Guide
SubDrive75/100/150/30 0
MonoDrive, MonoDriveXT
NEMA 1 / NEMA 4
Quick Installation Guide
■
English ........1
■
Français.....12
■
Espanol......22
A
E
C
D F
B
Included Items (NEMA 1)
SubDrive75/100/150
MonoDrive/MonoDriveXT

SubDrive/MonoDrive
7
How it Works
The Franklin Electric SubDrive/MonoDrive is designed to be part of a system that
consists of only four components:
A. Standard Pump and Franklin Electric Motor
B. SubDrive/MonoDrive Controller
C. Small Pressure Tank (see Table 4, pg. 29)
D. Franklin Electric Pressure Sensor (NSF 61 rated (provided))
E. Pressure shut-off switch (NSF 61 rated (SubDrive300 only))
Constant Pressure
The Franklin Electric SubDrive/MonoDrive provides consistent pressure regulation using
advanced electronics to drive a standard motor and pump according to the pressure
demands indicated by a highly accurate, heavy-duty, long-life pressure sensor. By
adjusting the motor/pump speed, the SubDrive/MonoDrive can deliver constant pressure
dependably, even as water demand changes. For example, a small demand on the
system, such as a bathroom faucet, results in the motor/pump running at a relatively
low speed. As greater demands are placed on the system, such as opening additional
faucets or using appliances, the speed increases accordingly to maintain the desired
system pressure.
Pressure
Sensor
Leads
Power Supply
from Circuit Breaker
PUMP
MOTOR
A
D
BC
Pressure
Relief Valve
Power to Motor
E

8
SubDrive/MonoDrive
Motor Soft-Start
Normally, when there is a demand for water, the SubDrive/MonoDrive will be operating
to accurately maintain system pressure. Whenever the SubDrive/MonoDrive detects that
water is being used, the controller always “ramps up” the motor speed while gradually
increasing voltage, resulting in a cooler motor and lower start-up current compared to
conventional water systems. In those cases where the demand for water is small, the
system may cycle on and off at low speed. Due to the controller’s soft-start feature and the
sensor’s robust design, this will not harm the motor or the pressure sensor.
System Diagnostics
In addition to regulating pump pressure and accurately controlling motor operation, the
SubDrive/MonoDrive continuously monitors system performance and can detect a variety
of abnormal conditions. In many cases, the controller will compensate as needed to
maintain continuous system operation. But if there is high risk of equipment damage, the
controller will protect the system and display the fault condition. If possible, the controller
will try to restart itself when the fault condition subsides.
SubDrive vs. MonoDrive
SubDrive controllers provide the ultimate in system performance, utilizing Franklin
Electric’s three-phase motor series for maximum starting torque, high efciency and
smooth operation. SubDrives convert residential single-phase 60 Hz power into the
variable-frequency three-phase needed by the motor. In addition, SubDrives can spin a
smaller pump slightly faster to boost output to roughly double its 60 Hz horsepower rating.
This allows use of smaller pumps for less system cost. If a smaller pump of the desired
ow rating is not available, the controller can be congured to use larger pumps up to the
horsepower rating of the motor.
SubDrive2W controllers are ideal for retrot applications where a single-phase 2-wire pump
system is already installed and in good operating condition. SubDrive2W provides the
same features as the MonoDrives. A retrot is as easy as replacing the existing pressure
switch with a MonoDrive and a pressure sensor. If the existing pump, motor and pressure
tank are in good working order, no further changes are needed.
MonoDrive controllers are ideal whenever the Franklin Electric single-phase 3-wire series
motor is preferred. MonoDrives are especially suited for retrot applications where a
3-wire pump system is already installed and in good operating condition. MonoDrives
provide all the same features as SubDrives, except maximum pump speed is held to 60
Hz for compatibility with the existing pump and motor. While MonoDrives are preset to
run the most popular system sizes (3/4 hp (0.55 kW) for MonoDrive, 1.5 hp (1.1 kW) for
MonoDriveXT), they can be congured to run a variety of horsepower ratings for maximum
exibility. When retrotting to an existing 3-wire system, MonoDrive installation is as easy
as replacing the existing control box and pressure switch with the MonoDrive controller
and pressure sensor. If the existing pump, motor and pressure tank are in good working
condition, no further changes are needed.

SubDrive/MonoDrive
9
Pump Sizing – SubDrive75
The SubDrive75 is congured at the factory for use with 3/4 hp (0.55 kW) pumps that are
mounted to 1.5 hp (1.1 kW) Franklin Electric three-phase motors. In general, the SubDrive75
will enhance the performance of a 3/4 hp (0.55 kW) pump to a similar or better performance
than a conventional 1.5 hp (1.1 kW) pump of the same ow rating (pump series).
To select the proper 3/4 hp (0.55 kW)
pump, rst choose a 1.5 hp (1.1 kW)
curve that meets the application’s
head and ow requirements. Use the
3/4 hp (0.55 kW) pump in the same
pump series (ow rating). The
SubDrive75 will adjust the speed
of this pump to produce the
performance of the 1.5 hp (1.1 kW)
curve. An EXAMPLE of this is
illustrated in the graph at right. Please
consult the pump manufacturer’s pump
curve for your specic application.
Drive Conguration
The SubDrive75 can also be set up to run a 1.0 hp (0.75 kW) or 1.5 hp (1.1 kW) pump if
desired, but larger pumps will still produce to the 1.5 hp (1.1 kW) curve and may only be
operated with a 1.5 hp (1.1 kW) motor. To operate a different pump size, a DIP switch must
be positioned to select the correct pump rating. Otherwise, the SubDrive75 may trigger
erroneous faults.
To congure the SubDrive75 for a 1.0 hp (0.75 kW) or 1.5 hp (1.1 kW) pump, locate the DIP
switch marked “SW1”. Use a small screwdriver (provided) to change the DIP switch setting
according to the chart as shown.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
ON
SENSOR
213
3
SW2
PRESSURE
SW1 2
4
14
R1
ADJUST
Configuration
Switch SW1
ON
12 3 4
SW1
Configuration Switch SW1
1
2
3
4
1
2
3
4
1
2
3
4
O N
O N
O N
¾ hp (0.55 kW)
(default)
1.0 hp
(0.75 kW)
1.5 hp (1.1 kW)
1 2 3 4
O
N
1 2 3 4
O
N
1 2 3 4
O
N
¾ hp (0.55kW) (default)
1.0 hp (0.75 kW)
1.5 hp (1.1 kW)
NEMA 1 NEMA 4
Flow GPM
700
600
500
400
300
200
100
0 5 10 15 20 25
3/4 hp (0.55 kW), 10 gpm with SubDrive75
Conventional 1.5 hp (1.1 kW), 10 gpm Pump
Conventional 3/4 hp (0.55 kW), 10 gpm Pump
EXAMPLE 1
Typical SubDrive75 Performance
Flow
Total Head
210
180
150
120
90
60
30
m
700
600
500
400
300
200
100
ft
0 5 10 15 2520
gpm
0 19 38 57 9576lpm

10
SubDrive/MonoDrive
Pump Sizing – SubDrive100
The SubDrive100 is congured at the factory for use with 1.0 hp (0.75 kW) pumps that are
mounted to 2.0 hp (1.5 kW) Franklin Electric three-phase motors. In general, the SubDrive100
will enhance the performance of a 1.0 hp (0.75 kW) pump to a similar or better performance than
a conventional 2.0 hp (1.5 kW) pump of the same ow rating (pump series).
To select the proper 1.0 hp (0.75 kW)
pump, rst choose a 2.0 hp (1.5 kW)
curve that meets the application’s
head and ow requirements. Use the
1.0 hp (0.75 kW) pump in the same
pump series (ow rating). The
SubDrive100 will adjust the speed of
this pump to produce the performance
of the 2.0 hp (1.5 kW) curve. An
EXAMPLE of this is illustrated in the
graph at right. Please consult the pump
manufacturer’s pump curve for your
specic application.
Drive Conguration
The SubDrive100 can also be set up to run a 1.5 hp (1.1 kW) or 2.0 hp (1.5 kW) pump if desired,
but larger pumps will still produce to the 2.0 hp (1.5 kW) curve and may only be operated with
a 2.0 hp (1.5 kW) motor. To operate a different pump size, a DIP switch must be positioned to
select the correct pump rating. Otherwise, the SubDrive100 may trigger erroneous faults.
To congure the SubDrive100 for a 1.5 hp (1.1 kW) or 2.0 hp (1.5 kW) pump, locate the DIP
switch marked “SW1”. Use a small screwdriver (provided) to change the DIP switch setting
according to the chart as shown.
Total Head (ft.)
Flow GPM
600
500
400
300
200
100
0 10 20 30 40
1.0 hp (0.75kW), 25 GPM with SubDrive100
Conventional 2.0 hp (0.5kW), 25 gpm Pump
Conventional 1.5 hp(1.1kW), 25 gpm Pump
NEMA 1 NEMA 4
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
ON
SENSOR
213
3
SW2
PRESSURE
SW1 2
4
14
R1
ADJUST
Configuration
Switch SW1
ON
12 3 4
SW1
Configuration Switch SW1
1
2
3
4
1
2
3
4
1
2
3
4
O N
O N
O N
1.0 hp (0.75 kW)
(default)
1.5 hp
(1.1 kW)
2.0 hp (1.5 kW)
1 2 3 4
O
N
1 2 3 4
O
N
1 2 3 4
O
N
1.0 hp (0.75 kW) (default)
1.5 hp (1.1 kW)
2.0 hp (1.5 kW)
EXAMPLE 2
Typical SubDrive100 Performance
Flow
Total Head
180
150
120
90
60
30
m
600
500
400
300
200
100
ft
0 10 20 30 40
gpm
0 30 76 113 151lpm

SubDrive/MonoDrive
11
ON
SENSOR
213
3
SW2
PRESSURE
SW1 2
4
14
R1
ADJUST
Configuration
Switch SW1
Pump Sizing – SubDrive150
The SubDrive150 is congured at the factory for use with 1.5 hp (1.1 kW) pumps that are
mounted to 3.0 hp (2.2 kW) Franklin Electric three-phase motors. In general, the SubDrive150
will enhance the performance of a 1.5 hp (1.1 kW) pump to a similar or better performance than
a conventional 3.0 hp (2.2 kW) pump of the same ow rating (pump series).
To select the proper 1.5 hp (1.1 kW)
pump, rst choose a 3.0 hp (2.2 kW)
curve that meets the application’s
head and ow requirements. Use the
1.5 hp (1.1 kW) pump in the same
pump series (ow rating). The
SubDrive150 will adjust the speed
of this pump to produce the
performance of the 3.0 hp (2.2 kW)
curve. An EXAMPLE of this is
illustrated in the graph at right.
Please consult the pump
manufacturer’s pump curve for your
specic application.
Drive Conguration
The SubDrive150 can also be set up to run a 2.0 hp (1.5 kW) or 3.0 hp (2.2 kW) pump if desired,
but larger pumps will still produce to the 3.0 hp (2.2 kW) curve and may only be operated with
a 3.0 hp (2.2 kW) motor. To operate a different pump size, a DIP switch must be positioned to
select the correct pump rating. Otherwise, the SubDrive150 may trigger erroneous faults.
To congure the SubDrive150 for a 2.0 hp (1.5 kW) or 3.0 hp (2.2 kW) pump, locate the DIP
switch marked “SW1”. Use a small screwdriver (provided) to change the DIP switch setting
according to the chart as shown.
NEMA 1 NEMA 4
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
ON
12 3 4
SW1
Configuration Switch SW1
1
2
3
4
1
2
3
4
1
2
3
4
O N
O N
O N
1.5 hp (1.1 kW)
(default)
2.0 hp
(1.5 kW)
3.0 hp (2.2 kW)
1 2 3 4
O
N
1 2 3 4
O
N
1 2 3 4
O
N
1.5 hp (1.1 kW) (default)
2.0 hp (1.5 kW)
3.0 hp (2.2 kW)
Total Head (ft.)
Flow GPM
700
600
500
400
300
200
100
0 10 20 30 40 50
1.5 hp (1.1kW), 25 GPM with SubDrive150
Conventional 3.0 hp (2.2kW), 25 gpm Pump
Conventional 1.5 hp (1.1kW), 25 gpm Pump
EXAMPLE 3
Typical SubDrive150 Performance
Flow
Total Head
210
180
150
120
90
60
30
m
700
600
500
400
300
200
100
ft
0 10 20 30 5040
gpm
0 30 76 113 140151lpm

12
SubDrive/MonoDrive
Pump Sizing – SubDrive300
The SubDrive300 is congured at the factory for use with 3.0 hp (2.2 kW) pumps that are
mounted to 5.0 hp (3.7 kW) Franklin Electric three-phase motors. In general, the SubDrive300
will enhance the performance of a 3.0 hp (2.2 kW) pump to a similar or better performance than
a conventional 5.0 hp (3.7 kW) pump of the same ow rating (pump series).
To select the proper 3.0 hp (2.2 kW)
pump, rst choose a 5.0 hp (3.7 kW)
curve that meets the application’s
head and ow requirements. Use the
3.0 hp (2.2 kW) pump in the same
pump series (ow rating). The
SubDrive300 will adjust the speed
of this pump to produce the
performance of the 5 hp curve. An
EXAMPLE of this is illustrated in the
graph at right. Please consult the pump
manufacturer’s pump curve for your
specic application.
Drive Conguration
The SubDrive300 can also be set up to run a 5.0 hp (3.7 kW) pump if desired, but the larger pump
will still produce to the 5.0 hp (3.7 kW) curve and may only be operated with a 5.0 hp (3.7 kW)
motor. To operate a different pump size, a DIP switch must be positioned to select the correct
pump rating. Otherwise, the SubDrive300 may trigger erroneous faults.
To congure the SubDrive300 for a 5.0 hp (3.7 kW) pump, locate the DIP switch marked “SW1”
at the lower right corner of the main circuit board. Use a small screwdriver (provided) to change
the DIP switch setting according to the chart as shown.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
Flow
EXAMPLE 4
Typical SubDrive300 Performance
Total Head
3.0 hp (2.2 kW), 40 gpm with SubDrive300
Conventional 5.0 hp (3.7 kW), 40 gpm Pump
Conventional 3.0 hp (2.2 kW), 40 gpm Pump
ON
12 3 4
SW1
Configuration
Switch SW1
NEMA 4 1
2
3
4
O N
1
2
3
4
O N
3.0 hp (2.2 kW)
(default)
5.0 hp (3.7 kW)
210
180
150
120
90
60
30
0
m
700
600
500
400
300
200
100
0
ft
5 15 30 45 7560
gpm
19 56 11 170 283227lpm

SubDrive/MonoDrive
13
Pump Sizing – SubDrive2W
The SubDrive2W is designed to convert a conventional 1/2 hp (0.37 kW), 3/4 hp (0.55
kW) or 1.0 hp (0.75 kW) pump system to a variable speed constant pressure system by
simply replacing the pressure switch. Maximum pump output using the SubDrive2W
is similar to the performance achieved using a pressure switch. Therefore, the pump
selection criteria are the same as if a pressure switch were used. (Refer to the pump
manufacturer’s literature for details of the pump selection procedure.)
If a pump and motor as described above are already installed in the system and the well
system components are in good working order, no further system upgrades are required.
However, if the existing pump and motor have not been properly chosen, or if the
components of the well system are not in good working order, the SubDrive2W cannot
be used to correct the problem or extend the life of aging components.
Drive Conguration
By default, the SubDrive2W is congured at the factory to run a 3/4 hp (0.55 kW)
system. To operate a 1/2 hp (0.37 kW) or 1.0 hp (0.75 kW) system, a DIP switch must
be re-congured to select the proper system rating. Failure to match the conguration
to the rating of the pump and motor may trigger erroneous faults.
To congure the SubDrive2W for a 1/2 hp (0.37 kW) or 1.0 hp (0.75 kW) system, locate
the DIP switch marked “SW1” at the bottom of the main circuit board. Use a small
screwdriver (provided) to change the DIP switch setting according to the chart as shown.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
NEMA 3R
O
N
1 2 3 4
CTS 206-4
T950
O
N
1 2 3 4
CTS 206-4
T950
P2
R1
ADJUST
SW1 SW2
Configuration
Switch SW1
1 2 3 4
O
N
1 2 3 4
O
N
1 2 3 4
O
N
1/2 hp (0.37 kw)
3/4 hp (0.55 kw) (default)
1 hp (0.75 kw)

14
SubDrive/MonoDrive
SENSOR
213
3
SW2
SW1 2
4
14
R1
ADJUST
ON Configuration
Switch SW1
Pump Sizing – MonoDrive
The MonoDrive is designed to convert a conventional 1/2 hp (0.37 kW), 3/4 hp (0.55
kW) or 1.0 hp (0.75 kW) pump system to a variable speed constant pressure system by
simply replacing the 3-wire control box and pressure switch. Maximum pump output
using the MonoDrive is similar to the performance achieved using a conventional control
box. Therefore, the pump selection criteria are the same as if a control box were used.
(Refer to the pump manufacturer’s literature for details of the pump selection procedure.)
If a pump and motor as described above are already installed in the system and the well
system components are in good working order, no further system upgrades are required.
However, if the existing pump and motor have not been properly chosen, or if the
components of the well system are not in good working order, the MonoDrive cannot be
used to correct the problem or extend the life of aging components.
Drive Conguration
By default, the MonoDrive is congured at the factory to run a 3/4 hp (0.55 kW) system.
To operate a 1/2 hp (0.37 kW) or 1.0 hp (0.75 kW) system, a DIP switch must be re-
congured to select the proper system rating. Failure to match the conguration to the
rating of the pump and motor may trigger erroneous faults.
To congure the MonoDrive for a 1/2 hp (0.37 kW) or 1.0 hp (0.75 kW) system, locate
the DIP switch marked “SW1” at the bottom of the main circuit board. Use a small
screwdriver (provided) to change the DIP switch setting according to the chart as shown.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
NEMA 1
ON
12 3 4
SW1
Configuration Switch SW1
NEMA 4
1
2
3
4
1
2
3
4
1
2
3
4
O N
O N
O N
½ hp
(0.37 kW)
¾ hp (0.55kW)
(default)
1 hp
(0.75 kW)
1 2 3 4
O
N
1 2 3 4
O
N
1 2 3 4
O
N
½ hp (0.37 kW)
¾ hp (0.55 kW) (default)
1 hp (0.75 kW)

SubDrive/MonoDrive
15
Pump Sizing – MonoDriveXT
The MonoDriveXT is designed to convert a conventional 1.5 hp (1.1 kW) or 2.0 hp (1.5
kW) pump system to a variable speed constant pressure system by simply replacing the
3-wire control box and pressure switch. Maximum pump output using the MonoDriveXT
is similar to the performance achieved using a conventional control box. Therefore, the
pump selection criteria are the same as if a control box were used. Please refer to the
pump manufacturer’s literature for details of the pump selection procedure.
If a pump and motor as described above are already installed in the system and the well
system components are in good working order, no further system upgrades are required.
However, if the existing pump and motor have not been properly chosen, or if the
components of the well system are not in good working order, the MonoDriveXT cannot
be used to correct the problem or extend the life of aging components.
Drive Conguration
By default, the MonoDriveXT is congured at the factory to run a 1.5 hp (1.1 kW) system.
To operate a 2.0 hp (1.5 kW) system, a DIP switch must be recongured to select the
proper system rating. Failure to match the conguration to the rating of the pump and
motor may trigger erroneous faults.
To congure the MonoDriveXT for a 2.0 hp (1.5 kW) system, locate the DIP switch
marked “SW1” at the bottom of the main circuit board. Use a small screwdriver
(provided) to change the DIP switch setting according to the chart as shown.
NEMA 1
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
ON
12 3 4
SW1
Configuration Switch SW1
NEMA 4
SENSOR
213
3
SW2
SW1 2
4
14
R1
ADJUST
ON Configuration
Switch SW1
1
2
3
4
1
2
3
4
O N
O N
1.5 hp (1.1 kW)
(default)
2.0 hp (1.5
kW)
1 2 3 4
O
N
1 2 3 4
O
N
1.5 hp (1.1 kW)
(default)
2.0 hp (1.5 kW)

16
SubDrive/MonoDrive
Underload Sensitivity Selection
(NEMA 1) –SubDrive75/100/150,
MonoDrive, MonoDriveXT
The SubDrive/MonoDrive controller is congured at the factory to ensure detection
of Underload faults in a wide variety of pumping applications. In rare cases (as with
certain pumps in shallow wells) this trip level may result in nuisance faults. If the pump is
installed in a shallow well, activate the controller and observe system behavior. Once the
controller begins to regulate pressure, check operation at several ow rates to make sure
the default sensitivity does not induce nuisance Underload trips.
If it becomes necessary to desensitize the Underload trip level, remove power and allow
the controller to discharge. Once the internal voltages have dissipated, locate the DIP
switch marked “SW1” at the lower right corner of the main circuit board. Use a small
screwdriver (provided) to change Position 3 to the “ON” position to select the lower
Underload sensitivity as shown in the chart below.
NEMA 1
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
ON
12 3 4
SW1
Configuration
Switch SW1
1
2
3
4
O N
1
2
3
4
O N
Normal (default)
Low (shallow wells)

SubDrive/MonoDrive
17
Underload Sensitivity Selection NEMA 4 and
NEMA 3R
The SubDrive/MonoDrive controller is congured at the factory to ensure detection of Underload
faults in a wide variety of pumping applications. In rare cases (as with certain pumps in shallow
wells) this trip level may result in nuisance faults. If the pump is installed in a shallow well, activate
the controller and observe system behavior. Once the controller begins to regulate pressure,
check operation at several ow rates to make sure the default sensitivity does not induce nuisance
Underload trips.
If it becomes necessary to desensitize the Underload trip level, remove power and allow the
controller to discharge. Once the internal voltages have dissipated, locate the DIP switch marked
“SW1” to the right of the sensor connection. Use a small screwdriver (provided) to change Position
3 to the “ON” position to select the lower Underload sensitivity as shown in the charts below.
If the pump is installed in an extremely shallow (i.e. artesian) well and the system continues to trip
even with Position 3 of the DIP switch set to the ON position for “Low (shallow wells)”, then the
Underload Potentiometer (Pot) will need to be adjusted to a lower sensitivity setting. Using a non-
conductive (i.e. plastic) pot adjustment tool, adjust the pot located just to the right of the sensor
connection counterclockwise. Check the Underload trip level and repeat as necessary.
In cases where the pump is set very deep, run the system at open discharge to pump the well
down and observe carefully that an Underload is detected properly. If the system does not trip as
it should, then the Underload Pot will need to be adjusted clockwise to a higher sensitivity setting.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
O
N
1 2 3 4
CTS 206-4
T950
O
N
1 2 3 4
CTS 206-4
T950
R1
ADJUST
SW1 SW2
Configuration Switch SW1
Underload Pot
(% SFL)
Deep
Normal
Shallow
100%
90%
80%
70%
60%
50%
40%
30%
1 2 3 4
O
N
1 2 3 4
O
N
Normal (default)
Low (shallow wells)
ON
SENSOR
213
3
SW2
PRESSURE
SW1 2
4
14
R1
ADJUST
Configuration
Switch SW1
Underload Pot
(% SFL)
Deep
Normal
Shallow
100%
90%
80%
70%
60%
50%
40%
30%
1 2 3 4
O
N
1 2 3 4
O
N
Normal (default)
Low (shallow wells)
NEMA 3R NEMA 4

18
SubDrive/MonoDrive
Underload Sensitivity Selection
SubDrive300
The SubDrive300 controller is congured at the factory to ensure detection of Underload
faults in a wide variety of pumping applications. In rare cases (as with certain pumps in
shallow wells) this trip level may result in nuisance faults. If the pump is installed in a shallow
well, activate the controller and observe system behavior. Once the controller begins to
regulate pressure, check operation at several ow rates to make sure the default sensitivity
does not induce nuisance Underload trips.
If it becomes necessary to desensitize the Underload trip level, remove power and allow the
controller to discharge. Once the internal voltages have dissipated, locate the DIP switch
marked “SW1” to the right of the sensor connection. Use a small screwdriver (provided) to
change Position 3 to the “ON” position to select the lower Underload sensitivity as shown in
the charts below.
If the pump is installed in an extremely shallow (i.e. artesian) well and the system continues
to trip even with Position 3 of the DIP switch set to the ON position for “Low (shallow wells)”,
then the Underload Potentiometer (Pot) will need to be adjusted to a lower sensitivity setting.
Using a non-conductive (i.e. plastic) pot adjustment tool, adjust the pot located just to the
right of the sensor connection counterclockwise. Check the Underload trip level and repeat
as necessary.
In cases where the pump is set very deep, run the system at open discharge to pump the
well down and observe carefully that an Underload is detected properly. If the system does
not trip as it should, then the Underload Pot will need to be adjusted clockwise to a higher
sensitivity setting.
(Fan)
Deep
Normal
Shallow
100%
90%
80%
70%
60%
50% 40%
30%
Underload Pot
(% SFL)
ON
12 3 4
SW1
Configuration Switch SW1
Pos 3 Underload Sensitivity
OFF Normal (default)
ON Low (shallow wells)
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.

SubDrive/MonoDrive
19
Steady Flow Selection
SubDrive75/100/150/300,
SubDrive2W/MonoDrive/MonoDriveXT
The SubDrive/MonoDrive controller is congured at the factory to ensure quick response to
maintain constant pressure. In rare cases (as with a water line tap before the pressure tank),
the controller may need to be adjusted to offer better control.
If the controller is used on a system that has a water line tapped before the pressure tank
and close to the well head or where audible speed variations of the PMA can be heard
through the pipes, adjusting the pressure control response time may be necessary. After
enabling this feature, the installer should check ow changes for possible overshoot. A larger
pressure tank and/or wider margin between regulation and valve pressure may be required as
the Steady Flow features reduce the controller’s reaction time to sudden changes in ow.
If it is necessary to adjust the pressure control, remove power and allow the controller to
discharge. Wait 5 minutes to allow internal voltage to dissipate, locate the DIP switch marked
“SW1”. Use a small screwdriver (provided) to move position 4 to “ON” as shown.
s WARNING
!
Serious or fatal electrical shock may result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify DIP switch settings until power has
been removed and 5 minutes have passed for internal voltages to discharge! Power must be
removed for DIP switch setting to take effect.
O
N
1 2 3 4
CTS 206-4
T950
O
N
1 2 3 4
CTS 206-4
T950
R1
ADJUST
SW1 SW2
Configuration Switch SW1
1 2 3 4
O
N
1 2 3 4
O
N
Normal (default)
Steady Flow
NEMA 3R
NEMA 1 NEMA 4
SENSOR
213
3
SW2
SW1 2
4
14
R1
ADJUST
ON Configuration
Switch SW1
ON
12 3 4
SW1
Configuration Switch SW1
1
2
3
4
O N
1
2
3
4
O N
Normal (default) Steady Flow
1 2 3 4
O
N
1 2 3 4
O
N
Normal (default)
Steady Flow

20
SubDrive/MonoDrive
Sleep Mode
The SubDrive2W has been congured with a Sleep mode to disable the unit in the event the
end-user requires it. The Sleep mode can be enabled by pressing the Sleep mode button
found on the bottom of the unit for ve (5) seconds. The Status indicator will display 3
horizontal segments. In Sleep mode, power is still applied to the drive; however, the unit will
not operate the water system until Sleep mode is disengaged. To disengage Sleep mode,
depress the Sleep mode button found on the bottom of the unit for ve (5) seconds.
Underload Smart Reset
If a motor Underload fault condition occurs, the most likely cause is an overpumped or dry
well. To allow the well to recover, the SubDrive/MonoDrive controller will wait 30 seconds
to 5 minutes, determined by duration of the previous run time, before restarting the motor.
For example, the rst time the fault occurs, the controller will wait 30 seconds before
attempting to restart the pump. If the system would then run for 1 minute and an Underload
fault recurs, the controller will wait 4 minutes before attempting to restart the pump. This
schedule allows for the minimum off-time possible based on the recovery time of the well.
Figure 1: Smart Reset Well Recovery Time
Over Temperature Foldback
The SubDrive/MonoDrive controller is designed for full power operation in ambient
temperatures up to 125° F (50° C) as long as the input voltage is kept at 230 VAC. Under
extreme thermal conditions, the controller will reduce output power in an attempt to avoid
shutdown. Full pump output is restored when the controller temperature cools to a
safe level.
0 81 2 4 6 753
0
1
2
4
6
5
3
Off Time (Minutes)
Run Time (Minutes)