SAJ PDM20 series User manual

PDM20 Smart Mini Pump Drive
User Manual
Version Code :PDM20-EN-60200256-1612

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Preface
Thank you for using PDM20 series products. This manual provides you with
relevant operation instructions and detailed description of parameters. Please read
this manual carefully before installation, running, maintenance or inspection.
Please make sure the wiring and the pump’s rotation direction is correct before use.

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CONTENTS
Preface...........................................................................................................
Notes for Safe Operation.............................................................................
Chapter 1 Operation Panel.........................................................................
1.1 Operation Panel Diagram.....................................................................
1.2 Indicator Light.....................................................................................
1.3 Operation and display mode................................................................
1.4 Menu Operation...................................................................................
Chapter 2 Appearance and Wiring.............................................................
2.1 Model Description...............................................................................
2.2 Selection table......................................................................................
2.3Dimensions...........................................................................................
2.4 Installation Procedure Illustrations......................................................
2.5Wiring Diagram of Main Circuit and Control Terminals......................
2.6Control Terminals.................................................................................
2.7 Wiring of Sensors.................................................................................
Chapter 3 Quick Start.................................................................................
3.1 Parameter Settings...............................................................................
According to different types of sensors, setting the parameters as
follows:......................................................................................................
3.2 Pump Rotation Direction Confirmation...............................................
Chapter 4 Programming and Parameters..............................................

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4.1Running Display Group........................................................................
4.2Stop Display Group...............................................................................
4.3Pressure and Protection Function Group..............................................
4.4 Frequency and Auxiliary Function Group...........................................
4.5 Parameter Setting Procedure................................................................
4.6 Programming Description of Parameters.............................................
Chapter 5 Fault Information and Troubleshooting..................................
5.1 Fault Codes Description.......................................................................
5.2 Common Faults and Actions................................................................
Chapter 6 Typical Application Guide.........................................................
6.1 Single Pump Control............................................................................
Appendix.......................................................................................................

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Notes for Safe Operation
Read this instruction manual thoroughly before installation, operation,
maintenance or inspection of the smart pump drive. In this manual, safe operation
are classified as “WARNING” or “CAUTION”.
SPD: Abbreviation of smart pump drive.
WARNING
Indicate a potentially dangerous situation which, if not avoided, could result in death or
serious injury to personnel.
CAUTION
Indicate a potentially dangerous situation which, if not avoided, could result in minor or
moderate injury and damage to equipment. It may also be used for warning against
unsafe practices.
Even items described as ( CAUTION) may result in a vital accident in some
situations. Please follow these important notes:
Before Installation
WARNING
Do not install or operate any SPD that is damaged or has missing parts. Otherwise, it
may result in equipment damage or harm life.

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Installation
Hold the bottom of the SPD when install or move the SPD, cannot just hold the shell to
prevent the injured or broken SPD.
SPD must be far away from heat source, flammable and explosive objects, and installed on
metal or other nonflammable objects.
If the SPD is mounted in a protective cabinet, the cabinet need to set vents to ensure ambient
temperature is below 40℃; otherwise it may be damaged because of high temperature.
Wiring
Ensure only qualified personnel to operate. Otherwise it can cause an electrical shock or
damage of the SPD.
Make sure the SPD is isolated from power supply by the circuit breaker. Otherwise it may
cause a fire.
Make sure that the ground terminal is grounded correctly. Otherwise it can cause an
electrical shock.
Please do not touch the main circuit terminal, and the main circuit terminals of the SPD do
not contact the shell. Otherwise it may cause an electrical shock.
Before connecting, make sure that the SPD rated voltage, phase number confirm to input
voltage, phase number; Otherwise it may cause fire or personal injury.
Never connect the AC input power supply to output terminals V, U, W; Otherwise the SPD
will be damaged and the guarantee is invalid.
Never perform with stand voltage test of the SPD, otherwise it may cause a damage to the
SPD.
The main circuit wiring of the SPD and the control loop wiring should be separated or

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Run
Turn on the input AC power only after the front cover is put correctly; Do not open or
remove the front cover when operation. Otherwise it may cause an electric shock.
If the function fault automatic reset or restart after power failure had been set, a safety
measures should be taken in advance; otherwise it may cause damage or injury.
The key “RUN/STOP” may be lose efficacy because some function had been set, a separate
emergency power switch can be installed in the SPD control system; otherwise it may cause
damage or injury.
When the SPD is power on, the SPD terminal is still live even in stop state, do not touch,
otherwise there is a risk of electric shock.
Do not use circuit breaker to control the stop or start of the SPD; Otherwise it may cause
damage to the SPD.
Because the SPD speed from low to high that is in a very short time, make sure that the
motor and equipment are in the permitted range to use. Otherwise it may cause damage to
the equipment.
Do not touch the heat sink. Otherwise it may cause harmful burns
The factory parameters of the SPD can meet most requirements of equipment operation, if
not necessary, please do not modify the parameters. Even though some equipment has
special needs, only necessary parameters can be modified. Otherwise, random
modifications may cause damage to the device.
vertical crossed, otherwise it will make the control signal interference.
The cable connected to the main circuit terminals should be use lugswith isolated casing.
If the length of cable between the SPD and the motor is more than 50 meters, it is
recommended touse a output reactor to protect the SPD and motor.

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Maintenance and check
When power on, do not touch the connection terminals. Otherwise it may cause an
electrical shock.
Only qualified electrical engineering personnel can maintain, replace and inspect the SPD.
Wait at least 10 minutes after the power failure, or make sure that is no residual voltage
before carry out maintenance and inspection, otherwise it may cause damage.
PCB board has CMOS integrated circuit, do not touch, otherwise the static electricity may
damage PCB board.
Others
It is strictly forbidden to transform the SPD, otherwise it may cause casualties. After
arbitrarily changing SPD, the guarantee will be invalid.

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Chapter 1 Operation Panel
1.1 Operation Panel Diagram
(1) ▲▼keys: Used to setting pressure values, switching parameters display and
modifying parameters. In the “stop” status, it can be used to modify the pressure
setting; In the “running” status, it can be used to switch running frequency,
pressure setting and feedback pressure back and forth.
(2) “MENU”: Pressing it for two seconds to transfer parameter mode from status
display mode.
(3)“RUN/STOP”: In status display mode without unacknowledged alarm, used as
start and stop switch button between running and stop; When an alarm arise and
fault code is displayed, used to acknowledge and reset alarm;In parameter setting
mode, used to enter menu and confirm parameter setting.

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1.2 Indicator Light
(1) RUN: running indicator light
Steady light: running instruction
Blinking light: sleep instruction
Steady off: stop instruction
(2) ALAM :fault indicator light
Drive faults or alarms
1.3 Operation and display mode
(1) Status display mode:
When power on the SPD, it enters the status display mode. When it stops, it
displays pressure setting. Press "▲"or"▼"to modify pressure setting. When it is
running,it displays current pressure, operating frequency, and setting pressure.
Press the "▲"or"▼" to switch the display; press "MENU" for two seconds to
enter the parameter setting mode.
(2) Parameter setting mode:
To view or set the parameters, as starting from status display mode, press the
"MENU" for 2 seconds to enter the parameter setting mode, and then press the
"RUN / STOP" starts to set parameters. After you set the parameter press twice
"MENU" to exit parameter setting mode, and return to the status display mode.
(3) The alarm display mode:
Automatically enter this mode when a drive fault or warning arises; press the
"RUN / STOP" to reset, or it can automatically restored the previous mode after
the alarm is eliminated.

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1.4 Menu Operation
Three-class menus are:
①Function group (first class)
②Function code setting(second class)
③Function code setting(third class)
Instruction: In the third class menu, pressing “MENU” or “RUN/STOP” can return
to the second class menu. The difference is that pressing “RUN/STOP” first saves
parameters to control board, and then returns to the second class menu and shifts to
next function code automatically; pressing “MENU” returns to the second class
menu directly without saving parameters and keeps staying at current function
code.
Under the third class menu, only flicker bit can be modified. Revisable bit will
shift automatically after 5 seconds.
Note: For parameters marked with “●”, please modify them in stopped state.
Parameters marked with “◎” are actual detected and recorded values which can’t
be modified.

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Example: Modify P0.02 from 0 to 1
Remarks: 0.1MPa = 100kPa = 1bar = 1kgf / cm2

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Chapter 2 Appearance and Wiring
2.1 Model Description
2.2 Selection table
Inverter type
Rated
power
Input
current
output
current
Adaptation motor
power
（kW）(A) (A) （kW）（
HP）
PDM20-2SR37 0.37 5 2.5 0.37 0.5
PDM20-2SR55 0.55 7 3.5 0.55 0.75
PDM20-2SR75 0.75 9 4.5 0.75 1
PDM20-2SR90 0.9 10 5 0.9 1.2
PDM20-2S1R1 1.1 11 5.5 0.9 1.5
PDM20-2S1R5 1.5 14 7 1.5 2
PDM20-2S2R2 2.2 20 10 2.2 3

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2.3Dimensions
(Unit: mm)
136
116
176
158
114
105
124
138

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2.4Installation Procedure Illustrations.
Step 1: Remove the iron plate at the bottom of the drive
Step 2: Install the baseplate to the motor
Fasten the fixing plate
above the electrical-box
of the motor

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Step 3: Fix the drive on the plate
Fix the drive on
the plate
Step 4: Finish installation
Fasten the drive to the fixing board with screws
Fasten the drive to
the fixing board
with screws

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2.5Wiring Diagram of Main Circuit and Control Terminals
Note:
Terminals:◎refers to main circuit;
Terminals: ○control loop terminals
2.6Control Terminals
2.6.1 Control terminals
The wiring mode of control terminals is internal terminal wiring or outer lead
connection, cabled-out by waterproof connectors.
M1 M2 GND +VO AI
Control terminals

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2.6.2 Terminal instruction
Terminal
symbol Terminal name Technical data
M1 Multi-function
input terminal 1 Enabled when connected to GND; Disabled when open
M2 Multi-function
input terminal 2 Enabled when connected to GND; Disabled when open
AI Analog input
terminal 1
It is 0 ～10V analog voltage input terminal or 4-20mA
analog current input terminal, chosen by function codes.
+Vo Positive terminal
of analog power
+5V～+24V adjustable power; Output voltage value is set
by function codes.
GND Negative terminal
of analog power Reference zero potential of +5V～+24V adjustable power
2.7 Wiring of Sensors
2.7.1 Terminal instruction
◆+VO ---5 ～24V Power terminal for transmissible pressure gauge/pressure
transmitter
◆AI ---0～10V analog signal input terminal (voltage feedback type) or 4～20mA
signal input terminal (current feedback type)
◆GND --- 5～24V signal common terminal
2.7.2 Sensor configuration instruction
A current type pressure sensor will be used by default; output signal is 4~20mA. If
use other types of sensors, please refer to the setting parameters P0.03，P0.04，
P0.05 in Chapter 4.5.
2.7.3 Wiring diagram
The drive can be connected to transmissible pressure gauge and pressure
transmitter. Please connect wire according to below diagrams.

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(1) Transmissible pressure gauge: working voltage 10VDC, output 0～10VDC.
Wiring method is shown as below.
(2) Pressure transmitter: working voltage range 10 ～30V, output 4 ～
20mA.Wiring method is shown as below.
Notes: Model for PDM20-2SXXXLN products will be equipped with dedicated
sensors (red line connected to terminal +VO; black line connected to terminal AI).
For the wiring method of various sensors and the setting of relevant parameters,
please refer to appendix.

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Chapter 3 Quick Start
3.1 Parameter Settings
According to different types of sensors, setting the parameters as follows:
Sensor works as this type. Taking 10V power supply voltage, 4-20mA feedback
signal, 1.6MPa pressure range, required water pressure of 4.0bar (4.0kgf/cm2) as
an example, the following parameters should be set:
P0.00 = 4.0 Pressure setting
P0.03 = 16.0 Maximum range of sensor
P0.04 = 1 Sensor feedback type (pressure transmitter)
P0.05 = 10.0 Input voltage of sensor
P0.14 = 11 Auto-start, fault self-reset
3.2 Pump Rotation Direction Confirmation
Make a short-time trial operation after setting parameters to see whether the
rotation direction is right or not. The direction can be changed by the following
two methods:
(1) Stop the drive and exchange arbitrary two phases of drive output power lines U,
V, W.
(2) Stop the drive and modify parameterP0.02.