Nidec Digitax HD M75X Series User manual

Quick Start Guide
Digitax HD
M75X Series
Variable speed AC drive
for Servo and Induction
motors
Part Number: 0478-0500-02
Issue: 2

Original Instructions
For the purposes of compliance with the EU Machinery Directive 2006/42/EC.
General information and access to additional documentation
This guide is intended to provide basic information required in order to set-up a drive to run a motor.
For more detailed installation and operational information, please refer to the relevant drive docu-
mentation which is available to download from:
http://www.drive-setup.com/ctdownloads
Warnings, Cautions and Notes
A Note contains information which helps to ensure correct operation of the product.
Copyright © May 2018 Nidec Control Techniques Ltd.
Issue Number: 2
A Warning contains information which is essential for avoiding a safety hazard.
A Caution contains information which is necessary for avoiding a risk of damage to the
product or other equipment.
This guide does not include safety information. Incorrect installation or operation of the
drive, could cause personnel injury or equipment damage. For essential safety
information, please refer to the relevant drive documentation or safety booklet supplied
with the drive.
WARNING
CAUTION
NOTE
WARNING

Digitax HD M75X Quick Start Guide
Issue Number: 2
Contents
1 Product information ....................................................................................8
1.1 Ratings .................................................................................................................... 8
1.2 Model number .......................................................................................................... 8
1.3 Drive features .......................................................................................................... 9
2 Mechanical installation .............................................................................10
3 Electrical installation .................................................................................11
3.1 AC supply requirements ........................................................................................ 11
3.2 DC supply requirements ........................................................................................ 11
3.3 External 24 Vdc supply .......................................................................................... 11
3.4 Terminal size and torque settings .......................................................................... 12
4 Getting started ...........................................................................................13
4.1 Display and Keypad operation ............................................................................... 13
4.2 Quick start commissioning / start-up ...................................................................... 14
4.3 Quick start commissioning / start-up using Connect .............................................. 15
4.4 Current limits ......................................................................................................... 17
5 Digitax HD M75X UL Listing Information .................................................18
5.1 General .................................................................................................................. 18
5.2 Electrical ................................................................................................................ 19
5.3 Environmental ........................................................................................................ 20

4Digitax HD M75X Quick Start Guide
Issue Number: 2
This declaration is issued under the sole responsibility of the manufacturer. The object of the
declaration is in conformity with the relevant European Union harmonization legislation.
The declaration applies to the variable speed drive products shown below:
The model number may be followed by additional characters that do not affect the ratings.
The variable speed drive products listed above have been designed and manufactured in
accordance with the following European harmonized standards:
EN 61000-3-2:2014 Applicable where input current < 16 A. No limits apply for professional
equipment where input power ≥1kW.
EU Declaration of Conformity
Nidec Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
Model
number Interpretation Nomenclature aaaa - bbc ddddde
aaaa Basic series
M100, M101, M200, M201, M300, M400, M600, M700, M701,
M702, M708, M709, M750, M751, M753, M754, F300, H300,
E200, E300, HS30, HS70, HS71, HS72, M000, RECT
bb Frame size 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11
c Voltage rating 1 = 100 V, 2 = 200 V, 4 = 400 V, 5 = 575 V, 6 = 690 V
ddddd Current rating Example 01000 = 100 A
e Drive format
A = 6P Rectifier + Inverter (internal choke), D = Inverter,
E = 6P Rectifier + Inverter (external choke),
T = 12P Rectifier + Inverter (external choke)
EN 61800-5-1:2007 Adjustable speed electrical power drive systems - Part 5-1:
Safety requirements - Electrical, thermal and energy
EN 61800-3: 2004+A1:2012 Adjustable speed electrical power drive systems - Part 3: EMC
requirements and specific test methods
EN 61000-6-2:2005 Electromagnetic compatibility (EMC) - Part 6-2: Generic
standards - Immunity for industrial environments
EN 61000-6-4: 2007+ A1:2011 Electromagnetic compatibility (EMC) - Part 6-4: Generic
standards - Emission standard for industrial environments
EN 61000-3-2:2014
Electromagnetic compatibility (EMC) - Part 3-2: Limits for
harmonic current emissions (equipment input current ≤16 A
per phase)
EN 61000-3-3:2013
Electromagnetic compatibility (EMC) - Part 3-3: Limitation of
voltage changes, voltage fluctuations and flicker in public, low
voltage supply systems, for equipment with rated current
≤16 A per phase and not subject to conditional connection

Digitax HD M75X Quick Start Guide 5
Issue Number: 2
These products comply with the Restriction of Hazardous Substances Directive (2011/65/EU), the
Low Voltage Directive (2014/35/EU) and the Electromagnetic Compatibility Directive (2014/30/EU).
These electronic drive products are intended to be used with appropriate motors,
controllers, electrical protection components and other equipment to form complete end
products or systems. Compliance with safety and EMC regulations depends upon installing
and configuring drives correctly, including using the specified input filters.
The drives must be installed only by professional installers who are familiar with
requirements for safety and EMC. Refer to the Product Documentation. An EMC data sheet
is available giving detailed information. The assembler is responsible for ensuring that the
end product or system complies with all the relevant laws in the country where it is to be
used.
Jonathan Holman-White
Director, Technology
Date: 14th May 2018
Place: Newtown, Powys, UK

6Digitax HD M75X Quick Start Guide
Issue Number: 2
This declaration is issued under the sole responsibility of the manufacturer. The object of the
declaration is in conformity with the relevant Union harmonization legislation. The declaration
applies to the variable speed drive products shown below:
The model number may be followed by additional characters that do not affect the ratings.
This declaration relates to these products when used as a safety component of a machine.
Only the Safe Torque Off function may be used for a safety function of a machine. None of
the other functions of the drive may be used to carry out a safety function.
These products fulfil all the relevant provisions of the Machinery Directive 2006/42/EC and the
Electromagnetic Compatibility Directive (2014/30/EU).
EC type examination has been carried out by the following notified body:
TUV Rheinland Industrie Service GmbH
Am Grauen Stein
D-51105 Köln
Germany
Notified body identification number: 0035
The harmonized standards used are shown on the following page:
EC type-examination certificate numbers:
01/205/5270.02/17 dated 2017-08-28
EU Declaration of Conformity
(including 2006 Machinery Directive)
Nidec Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
Model
No. Interpretation Nomenclature aaaa - bbc ddddde
aaaa Basic series M600, M700, M701, M702, M708, M709, M750, M751, M753,
M754, F300, H300, E200, E300, HS70, HS71, HS72, M000, RECT
bb Frame size 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11
c Voltage rating 1 = 100 V, 2 = 200 V, 4 = 400 V, 5 = 575 V, 6 = 690 V
ddddd Current rating Example 01000 = 100 A
e Drive format
A = 6P Rectifier + Inverter (internal choke), D = Inverter,
E = 6P Rectifier + Inverter (external choke),
T = 12P Rectifier + Inverter (external choke)

Digitax HD M75X Quick Start Guide 7
Issue Number: 2
Person authorised to complete the technical file:
P Knight
Conformity Engineer
Newtown, Powys, UK
DoC authorised by:
IMPORTANT NOTICE
These electronic drive products are intended to be used with appropriate motors,
controllers, electrical protection components and other equipment to form complete end
products or systems. It is the responsibility of the installer to ensure that the design of the
complete machine, including its safety-related control system, is carried out in accordance
with the requirements of the Machinery Directive and any other relevant legislation. The use
of a safety-related drive in itself does not ensure the safety of the machine. Compliance with
safety and EMC regulations depends upon installing and configuring drives correctly,
including using the specified input filters. The drive must be installed only by professional
installers who are familiar with requirements for safety and EMC. The assembler is
responsible for ensuring that the end product or system complies with all relevant laws in
the country where it is to be used. For more information regarding Safe Torque Off, refer to
the Product Documentation.
EN 61800-5-2:2016 Adjustable speed electrical power drive systems -
Part 5-2: Safety requirements - Functional
EN 61800-5-1:2016
(in extracts)
Adjustable speed electrical power drive systems -
Part 5-1: Safety requirements - Electrical, thermal and energy
EN 61800-3: 2004+A1:2012 Adjustable speed electrical power drive systems -
Part 3: EMC requirements and specific test methods
EN ISO 13849-1:2015 Safety of Machinery, Safety-related parts of control systems,
General principles for design
EN 62061:2005 + AC:2010 +
A1:2013 + A2:2015
Safety of machinery, Functional safety of safety related
electrical, electronic and programmable electronic control
systems
IEC 61508 Parts 1 - 7:2010 Functional safety of electrical/ electronic/programmable
electronic safety-related systems
Jonathan Holman-White
Director, Technology
Date: 14th May 2018
Place: Newtown, Powys, UK

8Digitax HD M75X Quick Start Guide
Issue Number: 2
1 Product information
1.1 Ratings
Table 1-1 Drive ratings, cable sizes and fuse ratings
* These are fast acting fuses.
** Short circuit rating - Input current based on a symmetrical supply fault level of 5 kA. For UL
installations with a short circuit current rating greater than 5 kA refer to the Digitax HD M75X Series
Installation and Technical Guide.
1.2 Model number
Figure 1-1 Model number
Model
No of
input
phases
Typical AC
input current
(single axis)
AC Fuse ratings
(single axis)
Cable size (single axis) Nominal
current
Peak
current
Typical
continuous
output power
Input** Output
AIECgG
UL Class
CC, J or T*mm2AWG mm2AWG A A kW
01200022 1 3.7 8 15 0.75 14 0.75 24 1.1 6.6 0.3
01200040 1 6.9 12 15 1.5 14 0.75 22 2.2 12 0.7
01200065 1 11.4 16 15 2.5 12 0.75 20 3.5 19.5 1.1
02200090 1 17.7 25 25 4 10 0.75 16 5.6 27 1.8
02200120 1 23 32 30 6 10 0.75 16 7.5 36 2.3
03200160 1 31.5 32 40 6 8 1.5 14 10.8 48 3.4
01200022 3 5.8 8 15 0.75 14 0.75 20 2.2 6.6 0.7
01200040 3 7.9 12 15 1.5 14 0.75 18 4 12 1.3
01200065 3 10.5 16 15 2.5 14 0.75 16 6.5 19.5 2
02200090 3 16.7 25 25 4 10 1 14 9 27 2.7
02200120 3 20.3 32 30 6 10 1.5 12 12 36 3.7
03200160 3 27.9 32 40 6 8 2.5 12 16 48 5
01400015 3 3.1 6 15 0.75 14 0.75 20 1.5 4.5 0.8
01400030 3 4.8 8 15 0.75 14 0.75 20 3 9 1.6
01400042 3 5.3 8 15 0.75 14 0.75 18 4.2 12.6 1.9
02400060 3 10.1 16 25 2.5 14 0.75 16 6 18 3.1
02400080 3 12.1 16 25 2.5 12 0.75 14 8 24 4.2
02400105 3 14.9 20 25 4 12 1.5 14 10.5 31.5 3.6
03400135 3 20.8 32 30 6 10 2.5 12 13.5 40.5 6.9
03400160 3 22 32 30 6 10 2.5 12 16 48 7.6
Identification Label
Electrical Specifications
Derivative
Frame Size:
Voltage Rating:
Current Rating:
Nominal current rating x 10
Power Format:
0
Optional Build
Customer Code
00 A B 1 01
Customer Code :
00 = 50 Hz
Documentation
1
Documentation:
2 - 200 V (200 - 240 ±10 %)
4 - 400 V (380 - 480 ±10 %)
M753 - 01 200022 A
Configuration
1
Safety:
1 - Standard
Encoder Interface:
0 - Standard
01 = 60 Hz
Power
Format
Encoder
Interface
Mounting kit and display options:
AB101 - Mounting kit not fitted/
Compact display fitted
(M750, M753)
AB110 - Mounting kit fitted/
Compact display not fitted (M751)
Digitax HD range
Product Line
M751 - Base
M753 - EtherCAT
M750 - Ethernet
01
02
03

Digitax HD M75X Quick Start Guide 9
Issue Number: 2
1.3 Drive features
Figure 1-2 Feature diagram (Frame 2 shown)
Table 1-2 Key to features of the drive
* Additional SI-Option mounting kit required when connecting option modules where not already
installed.
Number Description
1 Braking terminals
2 AC supply terminals
3 DC bus terminal cover
4 Communication port connections
5 External 24 V supply terminals
6 Status and communication LEDS
7 Reset
8 Display connection
9 SD card slot
10 Control and holding brake terminals
11 Position feedback connection
12 Ground screw
13 Motor terminals
14 Cable screen bracket
15 Option module slot 1 cover*
16 Internal EMC filter screw (frame 1 and 2)
17 DIN rail alignment
18 Option module slot 2 cover*
19 Cooling fan
1
2
3
7
5
6
8
9
10
11
12
14 13
15 16
17
18
19
4
12

10 Digitax HD M75X Quick Start Guide
Issue Number: 2
2 Mechanical installation
Figure 2-1 M75X dimensions (Frame 2 shown)
* Cut outs only required for rear venting, refer to the Digitax HD M75X Series Installation and
Technical Guide for further information.
Table 2-1 Dimensions by frame size (refer to Figure 2-1)
* For single axis stand alone drives, two M5 screws are required in the top mounting position and
one in the lower mounting position. For multi axis (side by side installation) with no DIN rail
attachment, one M5 screw is required in the top mounting position and one in the lower mounting
position for each drive. For multi axis (side by side installation) with DIN rail attachment one M5
screw in the top mounting position is sufficient to fix the drive to the back plate.
** 62 mm (2.44 in) with option module support installed.
• All frame sizes require a minimum clearance of 100 mm (3.94 in) above and below the product.
• A minimum clearance of 10 mm (0.39 in) should be maintained between the enclosure side
wall and the drive.
Drives may be mounted side by side (0 mm). For further information on mechanical installation
refer to the Digitax HD M75X Series Installation and Technical Guide.
Frame size H W** D M1 M2 (Ø)*
mm in mm in mm in mm in mm in
1233 9.17 40 1.58 174 6.85 222 8.74 5.2 0.21
2278 10.95 40 1.58 174 6.85 267 10.51 5.2 0.21
3328 12.91 40 1.58 174 6.85 317 12.48 5.2 0.21
12 mm
(0.47 in)
5 mm
(0.20 in)
Ø 32 mm
(1.26 in)*
40 mm (1.58 in)
6 mm
(0.24 in)
28 mm
(1.10 in) 35 mm
(1.38 in)
W
M2
M2
M2
M1
H
D
NOTE

Digitax HD M75X Quick Start Guide 11
Issue Number: 2
3 Electrical installation
An overlay of the electrical connections / terminals is included on the back page of this manual.
3.1 AC supply requirements
Table 3-1 Supply requirements
* Maximum supply imbalance: 2 % negative phase sequence (equivalent to 3 % voltage imbalance
between phases).
The supply and motor ground connections are made using the M4 threaded holes in the metal side
plate of the drive. Connections are located at the top and bottom of the drive, for further information
refer to the Digitax HD M75X Series Installation and Technical Guide.
For EMC (Electromagnetic compatibility) requirements refer to the Digitax HD M75X Series
Installation and Technical Guide.
3.2 DC supply requirements
The drive is able to operate from a DC supply with a range from 24 Vdc to the maximum DC volts.
The working voltage range of the low voltage DC power supply is as follows:
Minimum continuous operating voltage: 26 V
Minimum start up voltage: 32 V
Maximum over voltage trip threshold: 230 V drives: 415 V
400 V drives: 830 V
3.3 External 24 Vdc supply
An external 24 Vdc supply is required to power all the low voltage circuits within the drive.
The working voltage range of the drive 24 V power circuit is as follow:
Table 3-2 Working voltage range of the 24 Vdc supply
Model Voltage Frequency range
Digitax HD M75X
200 V 200 V to 240 V ±10 % single phase 45 to 66 Hz
Digitax HD M75X
200 V 200 V to 240 V ±10 % three phase* 45 to 66 Hz
Digitax HD M75X
400 V 380 V to 480 V ±10 % three phase* 45 to 66 Hz
The drive will power down and reset if the external 24 Vdc is removed.
All frame sizes
Nominal operating voltage 24.0 Vdc
Minimum continuous operating voltage 20.4 V
Maximum continuous operating voltage 28.8 V
Minimum start up voltage 20.4 V
Maximum fuse rating 30 A
WARNING

12 Digitax HD M75X Quick Start Guide
Issue Number: 2
3.4 Terminal size and torque settings
Table 3-3 Drive terminal data
Terminal description Max cable size Min cable size Recommended
torque Tool
AC power terminal connector 6mm
2(8 AWG) 0.5 mm2
(20 AWG) 0.7 N m (6.2 lb in)
2.5 mm flat blade
screwdriver
Motor power terminal connector 4mm
2(8 AWG) 0.5 mm2
(20 AWG) 0.5 N m (4.4 lb in)
Brake terminal connector 6mm
2(8 AWG) 0.5 mm2
(20 AWG) 0.7 N m (6.2 lb in)
Control terminal 1.5 mm2
(16 AWG)
0.2 mm2
(24 AWG)
+24 V supply connector 6mm
2(8 AWG) 0.5 mm2
(20 AWG) 0.5 N m (4.4 lb in)
DC busbar 2Nm(17.7lbin) T20 Torx
screwdriver
Ground busbar 2Nm(17.7lbin)
Optional
Internal EMC filter screw 0.8 N m (7.1 lb in) T10 Torx
screwdriver
Compact brake resistor mounting
screw 0.8 N m (7.1 lb in) T10 Torx
screwdriver
Compact brake resistor
thermistor screw 0.3 N m (2.7 lb in) 2.5 mm flat blade
screwdriver

Digitax HD M75X Quick Start Guide 13
Issue Number: 2
4 Getting started
4.1 Display and Keypad operation
The drive can be operated with a KI-Compact Display or KI-Remote Keypad RTC.
Only the KI-Remote Keypad RTC can be used to view and edit parameters. Connection to the drive
can be established via a KI-Compact 485 Adaptor (all M75X variants) or via a drive communication
port (M751 only) and a suitable Cat 5E patch cord.
Refer to the relevant Digitax HD M75X Control User Guide for information on the installation and
operation of the KI-Compact Display, KI-Compact 485 Adaptor and KI-Remote Keypad RTC.
Table 4-1 Display / Keypad identification
Type Keypad Name Further Details
Display KI-Compact Display
Single segment display option
Compact display with single character code drive
status representation, node address setting and
a push button reset
Accessory KI-Compact 485
Adaptor
KI-Compact 485 Adaptor
The KI-Compact 485 Adaptor provides an EIA-485
port for permanent connection to a KI-Remote
Keypad RTC or the temporary attachment for
PC tool connection
Keypad Remote-Keypad
RTC
Remote LCD keypad option
Remote Keypad with a LCD display and a real
time clock

14 Digitax HD M75X Quick Start Guide
Issue Number: 2
4.2 Quick start commissioning / start-up
Action User drive
mode* Detail
Before power-up All
Ensure:
• The drive enable signal is not given (terminal 2 & 6)
• Run signal is not given
• Run signal is not given
• Motor and feedback device are connected
Power-up the
drive All
Verify that the required user drive mode is displayed on the KI-Remote Keypad
RTC as the drive powers up. If the mode is incorrect refer to the relevant Digitax
HD M75X Control User Guide on how to change the drive mode.
Ensure:
• Drive displays ‘Inhibit’
If the drive trips refer to the diagnostics section of the relevant Digitax HD
M75X Control User Guide.
Set motor
feedback
parameters**
RFC-S
(with feedback)
RFC-A
(with feedback)
Incremental encoder basic set-up
Enter:
• Drive encoder type in Pr 03.038 = AB Servo (3) Quadrature encoder with
commutation outputs
• Encoder power supply in Pr 03.036 = 5 V (0), 8 V (1) or 15 V (2).
If output voltage from the encoder is > 5 V, then the termination resistors must
be disabled Pr 03.039 to 0.
• Drive encoder Lines Per Revolution (LPR) in Pr 03.034 (set according to
encoder)
• Drive encoder termination resistor setting in Pr 03.039:
0= A-A\, B-B\, Z-Z\ termination resistors disabled
1= A-A\, B-B\, termination resistors enabled, Z-Z\ termination resistors disabled
2= A-A\, B-B\, Z-Z\ termination resistors enabled
Enter motor
nameplate details All
Enter:
• Motor rated current in Pr 00.046 (A)
• Number of poles in Pr 00.042 (RFC-S only)
• Motor rated frequency in Pr 00.047 (Hz) (RFC- A & open loop only)
• Motor rated speed in Pr 00.045 (rpm) (RFC- A & open loop only)
• Motor rated voltage in Pr 00.044 (V)
Set maximum
speed All Enter: • Maximum speed in Pr 00.002 (rpm)
Set acceleration /
deceleration
rates
All
Enter:
• Acceleration rate in Pr 00.003 (s/100 Hz open loop or s/1000 rpm RFC-A/
RFC-S).
• Deceleration rate in Pr 00.004 (s/100 Hz open loop )or s/1000 rpm RFC-A/
RFC-S).
• If braking resistor installed, set Pr 00.015 = Fast. Also ensure Pr 10.S30,
Pr 10.031 and Pr 10.061 are set correctly, otherwise premature ‘Brake R
Too Hot’ trips may be seen.
NOTE
Setting the encoder voltage supply too high for the encoder could
result in damage to the feedback device.
CAUTION

Digitax HD M75X Quick Start Guide 15
Issue Number: 2
* The Digitax HD M75X series are factory configured in RFC-S mode.
** For simplicity only an incremental quadrature encoder with commutation outputs are considered here. For more
information on setting up one of the other supported feedback devices, refer to the relevant Digitax HD M75X
Control User Guide.
4.3 Quick start commissioning / start-up using Connect
Connect is a Windows™ based software commissioning / start-up tool for Digitax HD.
Connect can be downloaded from http://www.drive-setup.com/ctdownloads
Connect system requirements
• Windows 8, Windows 7 SP1, Windows Vista SP2, Windows XP SP3
• Minimum of 1280 x 1024 screen resolution with 256 colours
• Microsoft.Net Frameworks 4.0 (this is provided in the downloaded file)
• Note that you must have administrator rights to install Connect
Any previous copy of Connect should be uninstalled before proceeding with the installation
(existing projects will not be lost).
Autotune All
The drive is able to perform either a stationary or a rotating autotune. The motor
must be at a standstill before an autotune is enabled. A stationary autotune will
give moderate performance whereas a rotating autotune will give improved
performance as it measures the actual values of the motor parameters required
by the drive. Refer to the relevant Digitax HD M75X Control User Guide for more
information on the autotune function.
To perform an autotune:
•SetPr00.040 = 1 for a stationary autotune, Pr 00.040 = 2 for a rotating
autotune.
• Close the run signal (terminal 11 or 13).
• Close the drive enable signal (terminal 2 & 6).
The upper row of the display will flash 'Auto Tune' while the drive is performing
the test.
• Wait for the drive to display 'Ready' or 'Inhibit' and for the motor to come to
a standstill.
If the drive trips it cannot be reset until the drive enable signal (terminal 2 & 6)
has been removed.
Refer to the diagnostics chapter of the relevant Digitax HD M75X Control User
Guide.
• Remove the drive enabled and run signal from the drive.
Save parameters All
Select 'Save Parameters' in Pr MM.000 (alternatively enter a value of 1001 in
Pr MM.000) and press red reset button or toggle the reset digital input.
Run All Drive is now ready to run.
Action User drive
mode* Detail
Open loop and RFC-A mode
A rotating autotune will cause the motor to accelerate up to 2/3 base
speed in the direction selected regardless of the reference provided.
Once complete the motor will coast to a stop.
RFC-S drive mode
The rotating autotune will rotate the motor up to 2 mechanical
revolutions in the direction selected, regardless of the reference
provided. After a short delay, the motor is further rotated through an
electrical revolution. The enable signal must be removed before the
drive can be made to run at the required revolution.
The enable signal must be removed before the drive can be made to
run at the required reference. The drive can be stopped at any time
by removing the run signal or removing the drive enable.
WARNING

16 Digitax HD M75X Quick Start Guide
Issue Number: 2
4.3.1 Power-up the drive
Start Connect, and on the ‘Project Management’ screen select ‘Scan serial RTU network’ (M751 only
when connected to the drive communication port or all variants when connecting via the KI-Compact
485 Adaptor), ‘Scan Ethernet network’ (M750 only or M753 when using Ethernet over EtherCAT
protocol) or ‘Scan all connected drives’. This example uses the ‘Scan serial RTU network’ option.
Select the discovered drive.
1. Select the ‘Online’ icon to connect with the drive. When a successful connection is made the
icon will be highlighted blue.
2. Select ‘Set mode and region’.
If the required control mode is highlighted in the ‘Drive Settings’ dialog, then:
• Change the supply frequency, if required and select ‘Apply’, otherwise select ‘Cancel’.
1
2
3
4

Digitax HD M75X Quick Start Guide 17
Issue Number: 2
• Select ‘Default parameters‘ from the Dashboard and in the ‘Default Parameters’ dialog,
select ‘Apply’.
If the required control mode is not highlighted in the ‘Drive Settings’ dialog then:
• Select the required mode and supply frequency.
• Select ‘Apply’.
3. Select ‘Setup’ and perform the steps highlighted:
4. Select 'Save parameters in drive' to perform a parameter save.
The drive is now ready to run.
4.4 Current limits
The default setting for the current limit parameters is:
• 165 % x motor rated torque producing current for open loop mode
• 250 % x motor rated torque producing current for RFC-A and RFC-S modes.
There are three parameters which control the current limits:
•Pr04.005 Motoring Current Limit: power flowing from the drive to the motor
•Pr04.006 Regen Current Limit: power flowing from the motor to the drive
•Pr04.007 Symmetrical Current Limit: current limit for both motoring and regen operation
The lowest of either the motoring and regen current limit, or the symmetrical current limit applies.
The maximum setting of these parameters depends on the values of motor rated current, drive
rated current and the power factor. The drive can be oversized to permit a higher current limit
setting to provide higher accelerating torque as required up to a maximum of 1000 %.
Action Detail
Motor Set-up Connect contains a database for induction motors and permanent magnet motors. Provision is
also made to enter motor nameplate data.
Motor Feedback
Set-up
This only needs to be performed in RFC-S and RFC-A (with feedback) modes.
Enter the encoder type and encoder configuration data as prompted on screen.
If output voltage from the encoder is > 5 V, then the termination resistors must be disabled
Pr 03.039 to 0.
Speed References Enter preset speeds or a jog reference if required.
Ramps Set-up
Enter the required Acceleration rate and Deceleration rate.
Note: If a braking resistor is installed, set 'Ramp mode' to 'Fast'. Also ensure Pr 10.030 and
Pr 10.031 and Pr 10.061 are set correctly, otherwise premature 'Brake R Too Hot' trips may be
seen.
I/O Setup Map I/O terminals to parameters (where non default configuration is required).
Analog I/O Configure Analog input 1 and thermal monitoring parameters (where non default configuration
is required).
Digital I/O Allocate non default digital control functions to digital terminals where necessary.
Autotune
Follow the Autotune set up wizard to automatically tune the drive to the motor.
Not required when using data from the motor database for a Leroy Somer LSRPM motor used in
RFC-S Sensorless mode.
NOTE
Setting the encoder voltage supply too high for the encoder could result in damage to
the feedback device.
CAUTION
NOTE

18 Digitax HD M75X Quick Start Guide
Issue Number: 2
5 Digitax HD M75X UL Listing Information
This section is intended to be used in conjunction with the Digitax HD M75X Series
Installation and Technical Guide.
5.1 General
5.1.1 Scope
All models are cUL Listed to Canadian and US requirements.
The UL file reference is: NMMS / 7. E171230.
5.1.2 Applicant and Listee
Nidec Control Techniques Ltd
The Gro
Pool Road
Newtown
Powys
SY16 3BE
UK.
5.1.3 Manufacturer
Products are manufactured at several sites worldwide.
Primary manufacturing site:
Nidec Industrial Automation UK Ltd
Unit 79
Mochdre Industrial Estate
Newtown
Powys
SY16 4LE
UK.
The Manufacturing Location Code is: 8D14
5.1.4 Model numbers
The model numbers are shown in section 1.1 Ratings.
5.1.5 Safety information
Important safety information is included with the safety booklet supplied with the drive.
5.1.6 Adjustments
The Digitax HD M75X Series Installation and Technical Guide gives details of all safety-relevant
adjustments intended for the user. The identification or function of each control or indicating device
and fuse is clearly marked in the diagrams in the Digitax HD M75X Series Installation and Technical
Guide.
Maintenance adjustments are also described in the Digitax HD M75X Series Installation and
Technical Guide They should only be made by qualified personnel. Clear warnings are provided
where excessive adjustment could lead to a hazardous state of the Power Drive System (PDS),
Complete Drive Module (CDM) or Basic Drive Module (BDM). Any special equipment necessary for
making adjustments is specified and described in 'Mechanical installation' (Chapter 3) of the Digitax
HD M75X Series Installation and Technical Guide.

Digitax HD M75X Quick Start Guide 19
Issue Number: 2
5.2 Electrical
5.2.1 Ratings
The electrical ratings are shown in section 1.1 Ratings on page 8.
5.2.2 Short circuit current rating
All drives:
5 kA when protected by Listed fuses as specified in the Digitax HD M75X Series Installation and
Technical Guide.
100 kA when protected by recognised supplemental fuses as specified in the Digitax HD M75X
Series Installation and Technical Guide.
5.2.3 Overvoltage category
The Over Voltage Category is OVC III.
OVC III applies to equipment permanently connected in fixed installations (Downstream of and
including the main distribution board).
5.2.4 Input current, fuse ratings and cable sizes
Electrical installation shall be in accordance with the US National Electrical Code, the Canadian
Electrical Code and any additional local codes, as required.
The ground (earth) connections and the DC power connections must use UL Listed ring terminals
sized according to the field wiring. Only one cable is permitted to be connected to each field wiring
terminal.
The recommended cable sizes and fuse ratings are shown in section 1.1 Ratings on page 8.
Drives must be installed using cables rated for 75 °C operation, copper wire only.
Opening of the branch-circuit protective device may be an indication that a fault has been
interrupted. To reduce the risk of fire or electric shock, the equipment should be examined and
replaced if damaged. If burnout of the current element of an overload relay occurs, the complete
overload relay must be replaced.
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit
protection must be provided in accordance with the National Electrical Code (NEC), The Canadian
Electrical Code, and any additional local codes.
5.2.5 Motor cable size and maximum length
The recommended motor cable sizes and maximum length are shown in section 1.1 Ratings on
page 8.
5.2.6 Multiple wiring arrangements
The drives are able to operate from either a single phase or a three-phase AC supply.
Additionally, the drives are able to operate from a DC supply with a range from 24 Vdc up to the
maximum rated DC supply voltage. It is possible for the drive to go from operating on a normal line
power supply voltage to operating on a much lower supply voltage without interruption. The wiring
arrangements are shown in the ‘Electrical installation’ (Chapter 4) of the Digitax HD M75X Series
Installation and Technical Guide.
5.2.7 External 24 V supply
An external 24 Vdc supply is required to power the low voltage circuits within the drive. The low
voltage circuits are isolated from the live circuits. The 24 V supply must be protected by a
supplemental fuse. Refer to the ‘Electrical installation’ (Chapter 4) of the Digitax HD M75X Series
Installation and Technical Guide.
5.2.8 Common DC bus systems
Multiple drives can be connected together via a common DC bus. For further details, refer to
‘Multi axis system design’ (Chapter 5) of the Digitax HD M75X Series Installation and Technical
Guide.

20 Digitax HD M75X Quick Start Guide
Issue Number: 2
5.2.9 Solid state short circuit protection
Integral solid state short circuit protection is provided. However, this does not provide branch circuit
protection.
In the event of a ground (earth) fault within the drive, the input protective devices (fuses or circuit
breaker) provide overcurrent protection in the usual way. All AC drives incorporate solid state short
circuit protection. If a ground (earth) fault occurs in the motor circuit, the solid-state protection
operates, the inverter trips and all power switches (IGBTs) are switched off within a very short time,
typically less than 10 μs. The total trip time is unlikely to exceed 100 μs. In the event of failure of the
solid state short circuit protection, one or more of the inverter power devices then fails either open
or short circuit. If the failure mode is open-circuit, the fault is interrupted. If the failure mode is short-
circuit, the input protection devices (fuses or circuit breaker) clear the fault and open the circuit.
5.2.10 Motor overload protection and thermal memory retention
All drives incorporate internal overload protection for the motor load that does not require the use of
an external or remote overload protection device. The method of adjustment of the overload
protection is provided in section 4.4 Current limits on page 17. The protection levels are expressed
as a percentage of full load current. In order for the motor protection to work properly, the motor
rated current must be entered into Pr 00.046 or Pr 05.007. The motor overload protection levels
may be adjusted below 250 % (RFC-S/RFC-A) or 165 % (Open loop) if required. The duration of
the overload is dependent on motor thermal time constant. The drives are provided with user
terminals that can be connected to a motor thermistor to protect the motor from high temperature,
in the event of a motor cooling fan failure.
5.3 Environmental
5.3.1 Enclosure rating
All drives are Open Type.
5.3.2 Mounting
Drives may be mounted
• Singly
• Side by side
• Stacked one above another when fitted with a rear vent kit
The drives are equipped with a rear vent that allows heated air to be exhausted from the rear of the
drive rather than the through the top. This mounting arrangement provides the following benefits:
• Reduction in enclosure size.
• Allow vertical stacking of drives.
• Reduce the need for a secondary enclosure fan.
Refer to the ‘Mechanical Installation’ (Chapter 3) of the Digitax HD M75X Series Installation and
Technical Guide.
For compact multi axis installations, the rear venting kit allows drives to be vertically mounted one
above the other, where this is the case, a minimum clearance of 100 mm (3.94 in) should be
maintained between drives. A current derating must be applied to the drive if the rear vent kit is
installed. Derating information is provided in the ‘Technical Data’ (Chapter 6) of the Digitax HD
M75X Series Installation and Technical Guide. Failure to do so may result in nuisance tripping.
5.3.3 Operating temperature
The drives are suitable for use up to 40 °C (104 °F) surrounding air temperature. Operation up to
55 °C (131 °F) is permitted with de-rated output. Refer to the ‘Technical Data’ (Chapter 6) of the
Digitax HD M75X Series Installation and Technical Guide.