Power Electronics SD750 Series User manual

SD750
SOFTWARE AND
PROGRAMMING MANUAL
LOW VOLTAGE VARIABLE SPEED DRIVE

Software and Programming Manual
Edition: May 2021
SD75SW01LI Rev. L

SD750
POWER ELECTRONICS
2
ABOUT THIS MANUAL
ABOUT THIS MANUAL
PURPOSE
This manual contains important instructions for the installation and maintenance of Power Electronics
SD750 variable speed drives.
TARGET AUDIENCE
This manual is intended for qualified customers who will install, operate and maintain Power Electronics
SD750 variable speed drives.
Only trained electricians may install and commission the drives.
REFERENCE MANUALS
The following reference documents are available for SD750 variable speed drives:
•Hardware and Installation Manual SD750.
•Programming and Software Manual SD750.
•Pumps Application Manual.
•Accessories Manuals.
POWER ELECTRONICS CONTACT INFORMATION
Power Electronics USA Inc.
1510 N. Hobson Street, Gilbert,
Phoenix
AZ 85233
UNITED STATES OF AMERICA
US Sales: 602-354-4890 / [phone]
Power Electronics España, S.L.
Polígono Industrial Carrases
Ronda del Camp d’Aviació nº 4
46160, Llíria (Valencia)
SPAIN
Telephone: [phone]
Website: www.power-electronics.com

POWER ELECTRONICS
SD750
REVISIONS CONTROL
3
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REVISIONS CONTROL
DATE (DD/MM/YYYY)
REVISION
DESCRIPTION
24 / 10 / 2017
A
First Edition.
21 / 11 / 2017
B
Visualization parameters, Description of programming parameters,
Commissioning Recommendations, Fault messages. Description and
actions. Configuration register.
12 / 01 / 2018
C
Safety instructions, Display unit and control keypad, Status messages,
Visualization parameters, programming parameters Description,
Commissioning Recommendations, Fault messages. Description and
actions. Configuration register.
12 / 03 / 2018
D
Update to new software version.
Added default value in visualization parameters. Misprint and image
update. Sections: Fault Messages. Modbus communication.
Configuration register.
10 / 05 / 2018
E
Updated to new software version.
Misprints correction.
29 / 11 / 2018
F
Updated to new software version. Status, warning and fault messages.
Misprints correction.
20 / 06 / 2019
G
Updated to new software version. Status, warning and fault messages.
Misprints correction.
10 / 12 / 2019
H
About this manual. Misprints correction. Updated to new software
version. Status, warning and fault messages.
27 / 05 / 2020
I
Updated to new software version. New references to accessories
manuals and parameters deleted. About this manual. Status & warning
messages. Fault messages descriptions and actions. Visualization
parameters. Description of programming parameters. Modbus
Communication. Configuration register.
18 / 12 / 2020
J
Updated to new software version. General revision and misprints
correction.
07 / 05 / 2021
K
Update references to Accessories Manuals (PT100 expansion board
and Profinet board). Misprints correction.
28 / 05 / 2021
L
Updated to new software version. Status & warning messages. Fault
messages descriptions and actions. Visualization parameters.
Description of programming parameters. Modbus Communication.
The equipment and technical documentation are periodically updated. Power Electronics reserves the right to modify all or part of the
contents of this manual without previous notice. To consult the most updated information of this product, you may access our website
www.power-electronics.com, where the latest version of this manual can be downloaded. The reproduction or distribution of the present
manual is strictly forbidden, unless express authorization from Power Electronics.

SD750
POWER ELECTRONICS
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TABLE OF CONTENTS
TABLE OF CONTENTS
ABOUT THIS MANUAL ...............................................................................................................................2
ACRONYMS.................................................................................................................................................7
SAFETY SYMBOLS.....................................................................................................................................9
SAFETY INSTRUCTIONS..........................................................................................................................10
1. DISPLAY UNIT AND CONTROL KEYPAD .........................................................................................11
Keypad Unit Description.....................................................................................................................11
LED for status indication..................................................................................................................12
Alphanumeric LCD Display..............................................................................................................12
Control Keys....................................................................................................................................12
Menu ..................................................................................................................................................13
2. STATUS & WARNING MESSAGES.....................................................................................................15
List of Status Messages .....................................................................................................................15
List of Warning Messages..................................................................................................................16
3. FAULT MESSAGES. DESCRIPTIONS AND ACTIONS ......................................................................18
Description of Fault List......................................................................................................................19
Troubleshooting..................................................................................................................................22
4. VISUALIZATION PARAMETERS.........................................................................................................27
Group V1: Motor Visualization............................................................................................................28
Group V2: Drive Visualization.............................................................................................................29
Group V3: External Visualization........................................................................................................29
Group V4: Internal Visualization.........................................................................................................30
Group V5: Programmable Parameters...............................................................................................30
Group V6: Registers...........................................................................................................................31
Group V7: Rectifier info......................................................................................................................31
Group V8: Date and time....................................................................................................................31
Group V9: Last fault Registers ...........................................................................................................32
Subgroup V9.1: Motor registers.......................................................................................................32
Subgroup V9.2: Drive registers........................................................................................................32
Subgroup V9.3: External registers...................................................................................................33
Subgroup V9.4: Internal registers....................................................................................................33
Group V11: Exp PT100 ......................................................................................................................34
Group V12: Warning history ...............................................................................................................34
5. DESCRIPTION OF PROGRAMMING PARAMETERS.........................................................................35
Group 1: Options................................................................................................................................36
Group 2: Motor Nameplate Data ........................................................................................................37
Group 3: References..........................................................................................................................38
Group 4: Inputs...................................................................................................................................39
Subgroup 4.1: Digital Inputs ............................................................................................................39
Subgroup 4.2: Analogue Input 1......................................................................................................43

POWER ELECTRONICS
SD750
TABLE OF CONTENTS
5
EN
Subgroup 4.3: Analogue Input 2 / Pulse..........................................................................................45
Subgroup 4.4: Analogue Input 3 / PT100.........................................................................................47
Subgroup 4.5: Analogue input 4 ......................................................................................................48
Subgroup 4.6: Analogue input 5 ......................................................................................................48
Subgroup 4.7: Analogue input 6 ......................................................................................................48
Subgroup 4.8: Analogue input 7......................................................................................................48
Group 5: Acceleration / deceleration rates .........................................................................................49
Subgroup 5.1: Acceleration .............................................................................................................49
Subgroup 5.2: Deceleration.............................................................................................................49
Subgroup 5.3: Motorized potentiometer...........................................................................................49
Others50
Group 6: PID Control..........................................................................................................................50
Group 7: Start / Stop Control..............................................................................................................51
Subgroup 7.1: Start..........................................................................................................................51
Subgroup 7.2: Stop..........................................................................................................................52
Subgroup 7.3: Spin start..................................................................................................................53
Group 8: Outputs................................................................................................................................53
Subgroup 8.1: Digital outputs ..........................................................................................................53
Subgroup 8.2: Analogue output 1....................................................................................................58
Subgroup 8.3: Analogue output 2 / Pulse........................................................................................59
Subgroup 8.4: Analogue output 3....................................................................................................59
Subgroup 8.5: Analogue output 4....................................................................................................59
Subgroup 8.6: Analogue output 5....................................................................................................60
Subgroup 8.7: Analogue output 6....................................................................................................60
Group 9: Comparators........................................................................................................................61
Subgroup 9.1: Comparator 1...........................................................................................................61
Subgroup 9.2: Comparator 2...........................................................................................................62
Subgroup 9.3: Comparator 3...........................................................................................................63
Group 10: Limits.................................................................................................................................64
Group 10.1: Speed ..........................................................................................................................64
Group 10.2: Current/Torque ............................................................................................................64
Group 11: Protections.........................................................................................................................65
Group 11.1: Input.............................................................................................................................65
Group 11.2: Motor............................................................................................................................66
Group 12: Auto reset..........................................................................................................................67
Group 13: Fault history.......................................................................................................................68
Group 14: Multi-references.................................................................................................................68
Group 15: Inch Speeds.......................................................................................................................69
Group 16: Skip Frequencies...............................................................................................................69
Group 17: Brake.................................................................................................................................70
Group 18: Encoder.............................................................................................................................70
Group 19: Fine Tuning........................................................................................................................71
Subgroup 19.1: IGBT Control..........................................................................................................71
Subgroup 19.2: Motor load..............................................................................................................72
Subgroup 19.3: Motor model...........................................................................................................73
Subgroup 19.4: Vector PID..............................................................................................................73
Group 20: Serial Communication........................................................................................................74
Subgroup 20.1: Modbus RTU..........................................................................................................74
Subgroup 20.2: Profibus Configuration............................................................................................75
Subgroup 20.6: Custom Modbus configuration................................................................................75
Subgroup 20.7: Custom Modbus values..........................................................................................76
Group 21: Networks............................................................................................................................77

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TABLE OF CONTENTS
Subgroup 21.1: Ethernet..................................................................................................................77
Subgroup 21.2: Client TCP..............................................................................................................77
Subgroup 21.3: EtherNet / IP...........................................................................................................77
Subgroup 21.4: Profinet...................................................................................................................77
Group 23: Expansion..........................................................................................................................78
Subgroup 23.1: PT100.....................................................................................................................78
Subgroup 23.2: Input/Output ...........................................................................................................78
Subgroup 23.3: Communications.....................................................................................................78
Subgroup 23.4: Expansion boards...................................................................................................79
Group 25: Master / Slave....................................................................................................................79
Group 26: Fans...................................................................................................................................79
6. MODBUS COMMUNICATION..............................................................................................................80
Supported Modbus Function Codes...................................................................................................80
Modbus Function Code Nº 3: Registers Reading ............................................................................80
Modbus Function Code Nº 16: Registers Writing.............................................................................81
Addressing Modes..............................................................................................................................82
Broadcast Addressing Mode............................................................................................................82
Remote Control Functions..................................................................................................................82
Summary of Modbus Addresses.........................................................................................................83
Modbus Register ‘COMMS STATUS’ ..............................................................................................83
Programming Parameters ..................................................................................................................84
Visualization Parameters....................................................................................................................99
7. COMMON CONFIGURATIONS .........................................................................................................106
Start / Stop Commands and Speed Reference by Keypad...............................................................106
Parameter Configuration................................................................................................................106
Start / Stop Commands by Terminals and Speed Reference by Analogue Input .............................107
Parameter Configuration................................................................................................................107
Connection Drawing ......................................................................................................................108
Start / Stop Commands by Terminals and Speed Reference by Motorized Potentiometer ..............109
Parameter Configuration................................................................................................................109
Connection Drawing ......................................................................................................................110
Start / Stop Commands by Terminals and Seven Speed References Selectable by Digital Inputs..111
Parameter Configuration................................................................................................................111
Connection Drawing ......................................................................................................................112
8. CONFIGURATION REGISTER ..........................................................................................................113

POWER ELECTRONICS
SD750
ACRONYMS
7
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ACRONYMS
The terms commonly used in the documentation of Power Electronics’ products are listed in the table
below.
Please notice this is a general series of terms and it encompasses all our product divisions (industrial,
solar, storage, and electric mobility), thus, some of the following expressions may not apply to this
particular manual.
ACRONYM
MEANING
AASS
Auxiliary Services
AC
Alternating Current
AI
Analogue Input
AO
Analogue Output
BESS
Battery Energy Storage System
BMS
Battery Manager Solution
CCID
Charge circuit interrupting device
CCL
Charge Current Limit.
CCS
Combined charging system –charging and communications protocol following the standard IEC
61851-23 Annex CC
CHAdeMO
Charging and communications protocol following the standard IEC 61851-23 Annex AA
CPU
Central Processing Unit
DC
Direct Current
DCL
Discharge Current Limit
DI
Digital Input
DSP
Digital Signal Processor
DO
Digital Output
EV
Electric Vehicle
FPGA
Programmable device (Field-Programmable Gate Array)
FRU
Field Replaceable Unit
GPRS
General Packet Radio Services, a data transmission system
HVAC
Heating, Ventilation, and Air Conditioning
IGBT
Insulated Gate Bipolar Transistor
IMI
Insulation monitoring device
IT
Grid system where the power supply is kept isolated and the electrical equipment system is
grounded.
LOTO
Lock Out –Tag Out
MCB
Miniature Circuit Breaker
MPCS
Multi Power Conversion System
MID
Measuring Instrument Directive
MV
Medium Voltage. This term is used to refer to high voltage in general
PE
Ground connection
PI
Proportional and Integral
POI
Point Of Interconnection
PPE
Personal Protection Equipment
PV
Photovoltaic energy

SD750
POWER ELECTRONICS
8
ACRONYMS
ACRONYM
MEANING
RCD
Residual Current Device
RCM
Residual Current Monitor
RFID
Radio Frequency Identification
SOC
State Of Charge –referred to battery
SOH
State Of Health –referred to battery. It compares the actual state of the battery to its initial
conditions. It is measured in percentage
STO
Safe Torque Off
TN
Grid system where the power supply is grounded, and the electrical equipment system is brought
to the same ground through the neutral connector.
TT
Grid system where both the power supply and the electrical devices are connected to the ground
via separate connections
UPS
Uninterruptible Power Supply
VSD / VFD
Variable Speed Drive, Variable Frequency Drive. Both terms are used

POWER ELECTRONICS
SD750
SAFETY SYMBOLS
9
EN
SAFETY SYMBOLS
Always follow safety instructions to prevent accidents and potential hazards from occurring.
In this manual, safety messages are classified as follows:
Other symbols used in this manual for safety messages are the following:
WARNING
Identifies potentially hazardous situations where dangerous voltage may
be present, which if not avoided, could result in minor personal injury,
serious injury or death.
Be extremely careful and follow the instructions to avoid the risk of
electrical shocks.
CAUTION
Identifies potentially hazardous situations, which if not avoided, could
result in product damage, or minor or moderate personal injury.
Read the message and follow the instructions carefully.
NOTICE
Identifies important measures to take in order to prevent damage
equipment and warranty lost, as well as encouraging good use and
environmental practices.
Hot surface. Be careful and follow the instructions to avoid burns and personal injuries.
Risk of fire. Be careful and follow the instructions to prevent causing an unintentional fire.
Caution, risk of electric shock. Energy storage timed discharge. Wait for the indicated
time to avoid electrical hazards.
Caution, risk of hearing damage. Wear hearing protection.

SD750
POWER ELECTRONICS
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SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
IMPORTANT!
Read carefully this manual to maximize the performance of the product and to ensure its safe use.
In order to appropriately use the drive, please, follow all instructions described in the Hardware and
Installation Manual which refer to transportation, installation, electrical connection and commissioning of
the equipment.
Power Electronics accepts no responsibility or liability for partial or total damages resulting from incorrect
use of equipment.
CAUTION
Read carefully the Hardware and Installation Manual and all documentation related to the drive to
ensure its safe use and prevent personal injuries and equipment damage.
Comply with local and national regulation.

POWER ELECTRONICS
SD750
DISPLAY UNIT AND CONTROL KEYPAD
11
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1. DISPLAY UNIT AND CONTROL
KEYPAD
Keypad unit description
The graphic display is a removable display unit for remote installation. There is a LED indicator integrated
in the Power Electronics logo on the display which provides information about the operation status of the
equipment. In addition, there is a 2.8 '' LCD screen and eight control keys.
Display and Keypad
NOTICE
If the USB terminal is connected to the control board, do not connect the micro USB connection
of the display cable to any other equipment different from the SD750 drive’s display. Otherwise the
equipment connected may be damaged.
The display is connected to the control board using a cable with a micro USB terminal on the end of the
display and a USB terminal on the control card side.
Note: By keeping the left and right control keys pressed, while the display is connected to the equipment,
the user forces the download of the MCF installed in the central microprocessor. Drive parameters will be
initialized to factory values.
1

SD750
POWER ELECTRONICS
12
DISPLAY UNIT AND CONTROL KEYPAD
LED for status indication
The status LED shows the drive status while it is on. It is located in the Power Electronics logo, and
will change its color as follows:
•Green: The equipment is in run status.
•Red: The equipment has stopped due to a FAULT.
•Yellow: The equipment is in WARNING status.
Alphanumeric LCD display
The main screen of the display is divided into two areas:
a) Status bar: Shows the main indicators of equipment status.
From left to right (see figure "Application screen"):
▪Current Fault.
▪Current Warning.
▪Status.
▪Output current in Amperes.
▪Current motor speed or equipment power:
Displays the current motor speed or the
current equipment power in%. If UVW has
negative sign, it indicates the motor rotates
anti-clockwise.
b) Visualization Area: Shows the main
visualization of the parameters and the different menus of the application.
Control keys
The display integrates eight control keys with the following functions:
This key is used to scroll up in the Menu or modify the value of the parameters.
Scroll left the main visualization screen or return to the previous screen in the Menu
options. Cancel changes made to a parameter.
Scroll right the main visualization screen or enter to the different options of the
Menu. Save changes made to a parameter.
This key is used to scroll down in the Menu or modify the value of the parameters.
Application screen
b
a

POWER ELECTRONICS
SD750
DISPLAY UNIT AND CONTROL KEYPAD
13
EN
Enter or exit the menu. It can also be used as editing help during parameter
adjustment, allowing to use the multiplier to set the desired value of a variable
(manual precision) or to modify the rate of updating the value according to the time
pressed (automatic precision). To enable it, go to Menu –Settings –Variables
edit mode and select “Manual precision”. Use the arrows right / left to increase /
decrease the digit “ED”. See example below. See section 5.
This key is used to start the equipment using the keyboard when the control has
been set to Local.
This key is used to stop the converter from the keyboard when the control has
been set to Local. In the event of a fault, this button can be used to reset the
equipment when the LOCAL control is enabled and the parameter G4.1.3 “Allow
local reset” is enabled.
This key is used for the selection of the control mode. When set to Local, the device
is controlled as Local. When set to Remote, the equipment works with the option
configured in the active control mode at that moment (either the one set in
parameter G4.1.1 "Main control mode" or in G4.1.2 "Alternative control mode ").
Menu
Access and exit of the menu
This section includes the following submenus:
▪Parameters:
This menu contains all the configuration and visualization. These parameters are grouped into
subgroups or sub-menus to facilitate their location.

SD750
POWER ELECTRONICS
14
DISPLAY UNIT AND CONTROL KEYPAD
▪Versions:
This menu contains the information of the versions associated with the equipment in terms of MCF,
uP, DSP, HW, expansion board and display.
▪Custom view creator:
This menu allows creating custom display screens on the main screen, selecting the parameters to
be included for any of the three lines of the new screen to be customized. Once the line to be
configured is selected, the user can select the three parameters to be included in the line. When
leaving the configuration, the screen will be automatically created on the right side of the Home
screen.
To delete a customized screen, the user should go to the screen to be deleted and press:
+
▪Backups:
This menu allows making copies of the system and restore the system from one copy.
▪Settings:
This menu contains all the general settings of the display:
▪Contrast.
▪Show / hide group index: it will show on the screen the subgroup index of the different
parameters (ex: G1.1).
▪Animations.
▪Display language.
▪Show / hide the value of variables.
▪Variable editing mode.
▪Go home when timeout: allows configuring if after timeout without interacting with the
display, the screen should return to the home screen or not.
▪Start with custom view: allows configuring if after each start of the equipment the home
screen display will be the “custom screen 1” generated in the Options submenu or the
default home screen.
▪File download:
This menu allows the download of the MCF file, firmware files and files by bootloader.
▪MCF: Allows the display to download the MCF file stored in the microcontroller that
contains the definition of display screens, variables and properties.
▪Firmware: If the microcontroller of the equipment has stored a new version, allows
updating the software version of the display.
▪Bootloader: Enabling the option allows to load software in .dfu format, allowing the display
update by PC through USB port.

POWER ELECTRONICS
SD750
STATUS & WARNING MESSAGES
15
EN
2. STATUS & WARNING MESSAGES
In the status bar of the display we can see the status of the equipment, the average intensity consumed
by the motor (A) and the motor speed (%). It always remains visible on the display and can not be modified
by the user:
a) Last fault
b) Current Warning message status
c) Current message status
d) Output current
e) Current speed
Note: User can access to the information displayed in status line via Modbus communication. See section
‘Modbus Communication’.
List of status messages
The following table indicates the possible status of the drive.
Screen
Name
Description
OFF
Deactivated power
Drive power is deactivated.
ON
Activated power
Drive power is activated.
ACL
Accelerating
Drive is increasing the output frequency. Motor increasing in speed, it is
accelerating.
run
Running
Drive is operating at reference speed. Operation at steady status.
DEC
Decelerating
Drive is decreasing the output frequency. Motor decreasing in speed, it is
decelerating.
STP
Stopping
Drive is decreasing the output frequency due to a stop command. Motor is
stopping by ramp until zero speed is reached.
FLT
Fault
The drive is in a fault status
RFLT
Fault with ramp stop
This message will be shown whenever any of the faults related to analog
input loss is triggered (F42, F43, F59, F89, F104, F105, F106…).
After the fault the drive will stop with ramp.
SPN
Flying start
‘Flying start’ operation must be configured if required. The SD750 will search
for the actual motor shaft speed once the drive has received a start
command.
AUT
Automatic adjustment
The drive is obtaining the values of the motor magnitudes.
CAUTION: Although the motor is not running there is dangerous
voltage. Run Led will be lit during this process. Be careful to avoid damages
and personal injury.
BRK
Brake
The DC brake of the motor is active.
2
a
b
c
d
e

SD750
POWER ELECTRONICS
16
STATUS & WARNING MESSAGES
Screen
Name
Description
IHEAT
Non-condensing current is
activated
SD750 is injecting DC current to prevent moisture condensing within the
motor.
CAUTION: Although the motor is not running there is dangerous
voltage. Run Led will be lit during this process. Be careful to avoid damages
and personal injury.
DLY
Start Delay Time
When a delay time has been set in order to start the equipment, after the
start command has been activated, this message will be displayed until this
time has elapsed.
IS1
Inch speed 1
SD750 is working according to inch speed 1 command and ‘Start + Inch
speed 1' mode is active. When operated in this mode the ‘Start + Inch speed
1’command is dominant over other inputs programmed for ‘Start’
functionality. Therefore, if one input is configured as ‘Start’ and it is
deactivated; despite this deactivated input, the drive will start when ‘Start +
Inch speed 1' command is received. This is also valid for Inch speed 2 and
3.
IS2
Inch speed 2
SD750 is working according to inch speed 2 command. ‘Start + Inch speed
2' mode is active.
IS3
Inch speed 3
SD750 is working according to inch speed 3 command. ‘Start + Inch speed
3' mode is active.
List of warning messages
NOTICE
The warning messages specific to each optional board are not described in this manual, for further
information check the corresponding manual (SD75MA--).
The following table details all the possible warning messages. If none exists, the message "NO WRN"
will be displayed on the STATUS LINE of the display.
Warning
Acronym
Name
Description
W1
MOL
Motor overtemperature
This message will appear when motor thermal model is increasing
the estimated motor temperature.
W3
MOC
Motor overload
Motor current is higher than the rated current value.
W4
DOC
Drive overload
This message will appear if the output current is higher than 125%
of the nominal current.
W5
ILT
Current limit
Current limit algorithm has been activated.
W6
TLT
Torque limit
Torque limit algorithm has been activated.
W7
VLT
Voltage limit
A high DC Link voltage level has been detected and the voltage
limit control algorithm has been activated to protect the drive.
W8
ACO
Iout Unbalance
Asymmetry in output currents of the drive has been detected.
W9
AVO
Vout Unbalance
Asymmetry in output voltage of the drive has been detected.
W10
AVI
Vin Unbalance
Asymmetry in input voltage of the drive has been detected.
W11
OVV
High input voltage
Input voltage of the equipment is reaching a dangerous level. The
value is above the set value (protections settings).
W12
UNV
Low input voltage
Input voltage of the equipment is reaching a dangerous level. The
value is below the set value (protections settings).
W13
SLMAX
Max speed limit
Motor speed has reached the maximum speed limit that is active
at the moment.

POWER ELECTRONICS
SD750
STATUS & WARNING MESSAGES
17
EN
Warning
Acronym
Name
Description
W14
CWR
Cells
The drive does not increase speed because input voltage is not
enough. This warning only applies to permanent magnet
synchronous motors.
W15
SLMIN
Min speed limit
Motor speed has reached the minimum speed limit that is active at
the moment.
W16
RTL
Reg torque limit
Regenerative torque limit algorithm has been activated.
W17
MVR
Motor voltage remainder
After stopping the converter, the motor retains a voltage higher
than 10% of its rated voltage.
W18
RIL
Regenerative I Limit
The motor current reaches the regeneration current limit set in the
screen [G10.2.11].
W19
LVRT
Low voltage drive-
through
The voltage threshold is not being complied.
W20
ACI
Input current unbalance
There is an unbalance of currents.
W21
POWLIM
Power limit
The output power limit has been exceeded.
W36
DE_A
Digital A expansion
There is a communications problem with the digital I/O expansion
board A.
W37
EPB
Profibus expansion
This warning message is related to the Profibus expansion board,
for more details, please refer to the SD75MA06 manual.
W44
DE_B
Digital B expansion
There is a communications problem with the digital I/O expansion
board B.
W45
EVCOMM
Expansion fans comm
There is a communications problem with the fan’s expansion
board.
W46
AE_A
Analog A expansion
This warning message is related to the analogue I/O expansion
board, for more details, please refer to the SD75MA05 manual.
W47
AE_B
Analog B expansion
W48
PNE
Profinet expansion
This warning message is related to the Profinet expansion board,
for more details, please refer to the SD75MA03 manual.
W49
EIPE
EthernetIP expansion
This warning message is related to the Ethernet/IP communication
board, for more details, please refer to the SD75MA01 manual.
W50
NOSD
SD not present
The SD card is not present.
W51
SDCRRP
Corrupted SD
The SD card is removed or is no longer recognized.

SD750
POWER ELECTRONICS
18
FAULT MESSAGES. DESCRIPTIONS AND ACTIONS
3. FAULT MESSAGES. DESCRIPTIONS
AND ACTIONS
When a fault occurs, the SD750 will stop the motor, showing the fault in the display.
Without resetting the fault it is possible to navigate through the display lines where we will have access to
the rest of the display parameters. Parameter SV9 –Last fault Registers, provides accurate equipment
data at the exact moment in which the failure happened.
On the other hand, the LED of the display will show a fixed red color, and the fault message will remain
until the fault is solved and the equipment is reset.
Fault Visualization
NOTICE
The fault messages specific toeach optional board are not described in this manual, for further information
check the corresponding manual (SD75MA--).
3