Nidec Digistart D3 User manual

Digistart D3
23 A - 1600A
200 V - 690 V

General Information
The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect
installation or adjustment of the optional parameters of the equipment or from mismatching the starter with the motor.
The contents of this guide are believed to be correct at the time of printing. In the interests of commitment to a policy
of continuous development and improvement, the manufacturer reserves the right to change the specification of the
product or its performance, or the content of the guide without notice.
All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means, electrical or
mechanical including, photocopying, recording or by an information storage or retrieval system, without permission in
writing from the publisher.
Software Version
This product is supplied with the latest version of user-interface and machine control software. If this product is to be
used in a new or existing system with other starters, there may be some differences between their software and the
software in this product. These differences may cause the product to function differently. This may also apply to
starters returned from the Nidec Service Centre.
If there is any doubt, please contact Nidec or your local Distributor.
Environmental Statement
Nidec is committed to minimising the impacts of its manufacturing operations. To this end, we operate an
Environmental Management System (EMS) which is certified to the International Standard ISO 14001.
When the products eventually reach the end of their useful life, they can very easily be dismantled into their major
component parts for efficient recycling. Many parts snap together and can be separated without the use of tools,
while other parts are secured with conventional screws.
Product packaging is of good quality and can be re-used. Large products are packed in wooden crates, while smaller
products come in strong cardboard cartons which themselves have a high recycled fibre content. If not re-used, these
containers can be recycled. Polythene, used on the protective film and bags from wrapping product, can be recycled
in the same way.
When preparing to recycle or dispose of any product or packaging, please observe local legislation and best practice.
REACH Legislation
EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals (REACH)
requires the supplier of an article to inform the recipient if it contains more than a specified proportion of any
substance which is considered by the European Chemicals Agency (ECHA) to be a Substance of Very High Concern
(SVHC) and is therefore listed by them as a candidate for compulsory authorisation.
For current information on how this requirement applies in relation to specific Nidec products, please approach your
usual contact in the first instance.
For the latest manuals and software, please visit our website.

Digistart D3: User Guide 3
Issue: G
Contents
1Safety Information ............................................................................................................................................5
1.1 Electrical safety - general warning ......................................................................................................................5
1.2 System Design and Safety of Personnel.............................................................................................................5
1.3 Environmental limits............................................................................................................................................5
1.4 Compliance with regulations ...............................................................................................................................5
1.5 Motor...................................................................................................................................................................5
1.6 Adjusting parameters ..........................................................................................................................................6
1.7 Electrical Installation ...........................................................................................................................................6
2Rating Data ........................................................................................................................................................7
2.1 Model Code.........................................................................................................................................................7
2.2 Current Ratings...................................................................................................................................................7
3Mechanical Installation...................................................................................................................................14
3.1Dimensions and Weights ..................................................................................................................................15
3.2 Physical Installation ..........................................................................................................................................18
3.3Busbar Adjustment Procedure ..........................................................................................................................19
4Electrical Installation ......................................................................................................................................21
4.1 Terminal layout .................................................................................................................................................21
4.2 Control connections ..........................................................................................................................................26
4.3 Power connections............................................................................................................................................27
4.4 Fuse information ...............................................................................................................................................31
4.5 Bypass Contactor..............................................................................................................................................42
4.6 Main Contactor..................................................................................................................................................42
4.7 Circuit Breaker ..................................................................................................................................................42
4.8 Power Factor Correction ...................................................................................................................................42
4.9 EMC (Electromagnetic compatibility) ................................................................................................................42
5Keypad and Status..........................................................................................................................................43
5.1 Keypad..............................................................................................................................................................43
5.2 Removing and Replacing the Keypad...............................................................................................................43
5.3 Synchronising the Keypad and the Starter........................................................................................................44
5.4 Displays ............................................................................................................................................................44
6Quick Start Commissioning...........................................................................................................................46
6.1 Control wiring....................................................................................................................................................46
6.2 Setup procedure ...............................................................................................................................................47
7Operation.........................................................................................................................................................48
7.1 Start, Stop and Reset Commands ....................................................................................................................48
7.2 Soft start methods.............................................................................................................................................48
7.3 Stop Methods....................................................................................................................................................51
7.4 Jog Operation ...................................................................................................................................................55
7.5 Inside Delta Operation ......................................................................................................................................55
8Programming...................................................................................................................................................56
8.1 Programming Menu ..........................................................................................................................................56
8.2 Access Code.....................................................................................................................................................57
8.3 Adjustment lock.................................................................................................................................................57
8.4 Load defaults ....................................................................................................................................................57
8.5 Quick setup details............................................................................................................................................58
8.6 Standard menu .................................................................................................................................................59
8.7 Advanced menu ................................................................................................................................................60
8.8 Parameter Descriptions ....................................................................................................................................65
8.9 Maintenance Tools............................................................................................................................................86
9Diagnostics......................................................................................................................................................91
9.1 Protection Responses.......................................................................................................................................91
9.2 Trip Messages ..................................................................................................................................................91
9.3 General Faults ..................................................................................................................................................95

4 Digistart D3: User Guide
Issue: G
10 Application Examples.....................................................................................................................................97
10.1 Installation with Main Contactor ........................................................................................................................97
10.2 Installation with External Bypass Contactor ......................................................................................................98
10.3 Emergency Run Operation................................................................................................................................99
10.4 Auxiliary Trip Circuit ........................................................................................................................................100
10.5 DC Brake with External Zero Speed Sensor...................................................................................................102
10.6 Soft Braking ....................................................................................................................................................104
10.7 Two-Speed Motor ...........................................................................................................................................105
10.8 Slip-Ring Motor ...............................................................................................................................................106
11 Technical Data...............................................................................................................................................108
11.1 UL Compliant Installation ................................................................................................................................110
12 Maintenance ..................................................................................................................................................111
12.1 Care ................................................................................................................................................................111
12.2 Measuring the motor current...........................................................................................................................111
12.3 Measuring the input and output power............................................................................................................111
12.4 Exchanging products ......................................................................................................................................111
13 Options ..........................................................................................................................................................112

Digistart D3: User Guide 5
Issue: G
1 Safety Information
WARNING
Indicates a hazard that may cause personal injury or death.
CAUTION
Indicates a hazard that may damage the equipment or installation.
NOTE
Provides helpful information.
1.1 Electrical safety - general warning
The voltages used in the starter can cause severe electrical shock and/or burns, and could be lethal. Extreme care is
necessary at all times when working with or adjacent to the starter.
Specific warnings are given at the relevant places in this guide.
1.2 System Design and Safety of Personnel
The starter is intended as a component for professional incorporation into complete equipment or a system. If
installed incorrectly, the starter may present a safety hazard.
The starter uses high voltages and currents, carries stored electrical energy, and is used to control equipment which
can cause injury.
Close attention is required to the electrical installation and the system design to avoid hazards either in normal
operation or in the event of equipment malfunction. System design, installation, commissioning and maintenance
must be carried out by personnel who have the necessary training and experience. They must read this safety
information and this guide carefully.
None of the starter functions must be used to ensure safety of personnel, ie they must not be used for
safety-related functions.
Careful consideration must be given to the functions of the starter which might result in a hazard, either through their
intended behaviour or through incorrect operation due to a fault. In any application where a malfunction of the starter
or its control system could lead to or allow damage, loss or injury, a risk analysis must be carried out, and where
necessary, further measures taken to reduce the risk.
The system designer is responsible for ensuring that the complete system is safe and designed correctly according to
the relevant safety standards.
1.3 Environmental limits
Instructions regarding transport, storage, installation and use of the starter must be complied with, including the
specified environmental limits. Starters must not be subjected to excessive physical force.
1.4 Compliance with regulations
The installer is responsible for complying with all relevant regulations, such as national wiring regulations, accident
prevention regulations and electromagnetic compatibility (EMC) regulations. Particular attention must be given to the
cross-sectional areas of conductors, the selection of fuses or other protection, and protective ground connections.
Within the European Union, all machinery in which this product is used must comply with the following directives:
2006/42/EC: Safety of machinery.
2014/35/EU: Low voltage directive
1.5 Motor
Ensure the motor is installed in accordance with the manufacturer’s recommendations. Ensure the motor shaft is not
exposed.
The values of the motor parameters set in the starter affect the protection of the motor. The default values in the
starter should not be relied upon. It is essential that the correct value is entered in Pr 1A Motor Full Load Current.
This affects the thermal protection of the motor.

6 Digistart D3: User Guide
Issue: G
1.6 Adjusting parameters
Some parameters have a profound effect on the operation of the starter. They must not be altered without careful
consideration of the impact on the controlled system. Measures must be taken to prevent unwanted changes due to
error or tampering.
1.7 Electrical Installation
1.7.1 Electrical shock risk
The voltages present in the following locations can cause severe electric shock and may be lethal:
•AC supply cables and connections
•Output cables and connections
•Many internal parts of the starter, and external option units
The AC supply must be disconnected from the starter using an approved isolation device before any cover is
removed from the starter or before any servicing work is performed.
WARNING – ELECTRICAL SHOCK HAZARD
Models D3-0500-B~D3-1600-N: The busbar and heatsink must be treated as live whenever the unit has
mains voltage connected (including when the starter is tripped or waiting for a command).
1.7.2 Power-up procedure
Always apply control voltage before (or with) mains voltage.
D3-0023-B to D3-0105-B: After transportation, mechanical shock or rough handling there is a possibility that the
bypass contactor may have latched into the on state. To prevent the possibility of the motor starting immediately, on
first commissioning or operation after transportation, always ensure that the control supply is applied before the
power, so that the contactor state is initialised.
1.7.3 STOP function
The STOP function does not remove dangerous voltages from the starter, the motor or any external option units.
1.7.4 Stored charge
The starter contains capacitors that remain charged to a potentially dangerous voltage after the AC supply has been
disconnected. If the starter has been energised, the AC supply must be isolated at least two minutes before work may
continue.
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual fault conditions, the capacitors
may fail to discharge. Do not assume that the capacitors have discharged. To protect the user and the equipment,
take due care when carrying out any work on the starter.
1.7.5 Equipment supplied by plug and socket
The control supply terminals of the starter are connected to the internal capacitors through rectifier diodes which are
not intended to give safety isolation. If the plug terminals can be touched when the plug is disconnected from the
socket, a means of automatically isolating the plug from the starter must be used (e.g. a latching relay).
1.7.6 Short circuit
The Digistart D3 is not short circuit proof. After severe overload or short circuit, the operation of the Digistart D3
should be fully tested by an authorised service agent.
1.7.7 Auto-start
Use the auto-start feature with caution. Read all the notes related to auto-start before operation.

Digistart D3: User Guide 7
Issue: G
2 Rating Data
2.1 Model Code
D3 –
1
4
–
0
2
5
5
–
N
–
C
1
Control voltage
C1 = 110~210 VAC or 220~440 VAC
C2 = 24 VAC/VDC
Bypass
B = internally bypassed
N = non-bypassed
Nominal current rating
Mains voltage
14 = 200~440 VAC (± 10%)
16 = 380 ~ 600 VAC (± 10%)
or 380 ~ 690 VAC (± 10%) - grounded star supply
system only
CAUTION
Digistart D3 can only be used on 690V IT supply equipped with surge protectors. Please contact Nidec or
your local distributor.
2.2 Current Ratings
Contact your local supplier for ratings under operating conditions not covered by these ratings charts.
2.2.1 Current Ratings for Bypass Operation
AC53b Utilisation Code
The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter
(internally bypassed, or installed with an external bypass contactor).
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating
depends on the number of starts per hour and the length and current level of the start.
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft
starter may have a higher or lower current rating in different operating conditions.
80 A
:
AC-53b
3.5
-
15
:
345
Off time (seconds)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining
sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
Off time: The minimum allowable time between the end of one start and the beginning of the next start.

8 Digistart D3: User Guide
Issue: G
In-line connection
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
D3-0023-B
23 A
20 A
17 A
15 A
D3-0043-B
43 A
37 A
31 A
26 A
D3-0050-B
50 A
44 A
37 A
30 A
D3-0053-B
53 A
53 A
46 A
37 A
AC53b 3.0-10:590
40 ºC <1000 metres
AC53b 3.5-15:585
40 ºC <1000 metres
AC53b 4.0-20:580
40 ºC <1000 metres
AC53b 4.5-30:570
40 ºC <1000 metres
D3-0076-B
76 A
64 A
55 A
47 A
D3-0097-B
97 A
82 A
69 A
58 A
D3-0100-B
100 A
88 A
74 A
61 A
D3-0105-B
105 A
105 A
95 A
78 A
D3-0145-B
145 A
123 A
106 A
90 A
D3-0170-B
170 A
145 A
121 A
97 A
D3-0200-B
200 A
189 A
160 A
134 A
D3-0220-B
220 A
210 A
178 A
158 A
D3-0255-B
255 A
231 A
201 A
176 A
D3-0255-N
255 A
231 A
201 A
176 A
D3-0350-B
350 A
329 A
284 A
244 A
D3-0360-N
360 A
360 A
310 A
263 A
D3-0380-N
380 A
380 A
359 A
299 A
D3-0425-B
425 A
411 A
355 A
305 A
D3-0430-N
430 A
430 A
368 A
309 A
D3-0500-B
500 A
445 A
383 A
326 A
D3-0580-B
580 A
492 A
425 A
364 A
D3-0620-N
620 A
620 A
540 A
438 A
D3-0650-N
650 A
650 A
561 A
455 A
D3-0700-B
700 A
592 A
512 A
438 A
D3-0790-N
790 A
790 A
714 A
579 A
D3-0820-B
820 A
705 A
606 A
516 A
D3-0920-B
920 A
804 A
684 A
571 A
D3-0930-N
930 A
930 A
829 A
661 A
D3-1000-B
1000 A
936 A
796 A
664 A
D3-1200-N
1200 A
1200 A
1200 A
1071 A
D3-1410-N
1410 A
1410 A
1319 A
1114 A
D3-1600-N
1600 A
1600 A
1600 A
1353 A

Digistart D3: User Guide 9
Issue: G
Inside delta connection
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
D3-0023-B
34 A
30 A
26 A
22 A
D3-0043-B
64 A
59 A
51 A
44 A
D3-0050-B
75 A
66 A
55 A
45 A
D3-0053-B
80 A
80 A
69 A
55 A
AC53b 3.0-10:590
40 ºC <1000 metres
AC53b 3.5-15:585
40 ºC <1000 metres
AC53b 4.0-20:580
40 ºC <1000 metres
AC53b 4.5-30:570
40 ºC <1000 metres
D3-0076-B
114 A
96 A
83 A
70 A
D3-0097-B
145 A
123 A
104 A
87 A
D3-0100-B
150 A
132 A
112 A
92 A
D3-0105-B
157 A
158 A
143 A
117 A
D3-0145-B
218 A
184 A
159 A
136 A
D3-0170-B
255 A
217 A
181 A
146 A
D3-0200-B
300 A
283 A
241 A
213 A
D3-0220-B
330 A
315 A
268 A
238 A
D3-0255-B
382 A
346 A
302 A
264 A
D3-0255-N
382 A
346 A
302 A
264 A
D3-0350-B
525 A
494 A
427 A
366 A
D3-0360-N
540 A
540 A
465 A
395 A
D3-0380-N
570 A
570 A
539 A
449 A
D3-0425-B
638 A
617 A
533 A
458 A
D3-0430-N
645 A
645 A
552 A
464 A
D3-0500-B
750 A
668 A
575 A
490 A
D3-0580-B
870 A
738 A
637 A
546 A
D3-0620-N
930 A
930 A
810 A
651 A
D3-0650-N
975 A
975 A
842 A
683 A
D3-0700-B
1050 A
889 A
768 A
658 A
D3-0790-N
1185 A
1185 A
1075 A
868 A
D3-0820-B
1230 A
1058 A
910 A
774 A
D3-0920-B
1380 A
1206 A
1026 A
857 A
D3-0930-N
1395 A
1395 A
1244 A
992 A
D3-1000-B
1500 A
1404 A
1194 A
997 A
D3-1200-N
1800 A
1800 A
1800 A
1606 A
D3-1410-N
2115 A
2115 A
1979 A
1671 A
D3-1600-N
2400 A
2400 A
2400 A
2030 A

10 Digistart D3: User Guide
Issue: G
2.2.2 Current Ratings for Continuous Operation (Not bypassed)
AC53a Utilisation Code
The AC53a Utilisation Code defines the current rating and standard operating conditions for a non-bypassed soft
starter.
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating
depends on the number of starts per hour, the length and current level of the start, and the percentage of the
operating cycle that the soft starter will be running (passing current).
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft
starter may have a higher or lower current rating in different operating conditions.
351 A
:
AC-53a
3.5
-
15
:
50
-
6
Starts per hour
On-load duty cycle (%)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining
sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
On-load duty cycle: The maximum percentage of each operating cycle that the soft starter can operate.
Starts per hour: The maximum allowable number of starts per hour.
In-line connection
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
D3-0255-N
255 A
222 A
195 A
171 A
D3-0360-N
360 A
351 A
303 A
259 A
D3-0380-N
380 A
380 A
348 A
292 A
D3-0430-N
430 A
413 A
355 A
301 A
D3-0620-N
620 A
614 A
515 A
419 A
D3-0650-N
650 A
629 A
532 A
437 A
D3-0790-N
790 A
790 A
694 A
567 A
D3-0930-N
930 A
930 A
800 A
644 A
D3-1200-N
1200 A
1200 A
1135 A
983 A
D3-1410-N
1410 A
1355 A
1187 A
1023 A
D3-1600-N
1600 A
1600 A
1433 A
1227 A
Inside delta connection
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
D3-0255-N
382 A
334 A
293 A
257 A
D3-0360-N
540 A
527 A
455 A
388 A
D3-0380-N
570 A
570 A
522 A
437 A
D3-0430-N
645 A
620 A
533 A
451 A
D3-0620-N
930 A
920 A
773 A
628 A
D3-0650-N
975 A
943 A
798 A
656 A
D3-0790-N
1185 A
1185 A
1041 A
850 A
D3-0930-N
1395 A
1395 A
1200 A
966 A
D3-1200-N
1800 A
1800 A
1702 A
1474 A
D3-1410-N
2115 A
2033 A
1780 A
1535 A
D3-1600-N
2400 A
2400 A
2149 A
1840 A

Digistart D3: User Guide 11
Issue: G
2.2.3 NEMA motor ratings
In-line connection
Internally bypassed
models
Light
300%, 10 seconds
50 ºC <1000 metres
Standard
350%, 30 seconds
50 ºC <1000 metres
Heavy
450%, 30 seconds
50 ºC <1000 metres
D3-0023-B
23 A
21 A
16 A
D3-0043-B
43 A
39 A
29 A
D3-0050-B
50 A
46 A
35 A
D3-0053-B
53 A
53 A
45 A
D3-0076-B
76 A
65 A
46 A
D3-0097-B
97 A
79 A
58 A
D3-0100-B
100 A
84 A
65 A
D3-0105-B
105 A
105 A
79 A
D3-0145-B
145 A
124 A
90 A
D3-0170-B
170 A
141 A
110 A
D3-0200-B
200 A
159 A
135 A
D3-0220-B
220 A
180 A
156 A
D3-0255-B
255 A
205 A
180 A
D3-0350-B
360 A
302 A
240 A
D3-0425-B
425 A
360 A
302 A
D3-0500-B
515 A
384 A
324 A
D3-0580-B
590 A
426 A
360 A
D3-0700-B
700 A
515 A
431 A
D3-0820-B
820 A
605 A
509 A
D3-0920-B
920 A
673 A
590 A
D3-1000-B
1000 A
783 A
720 A
Non-bypassed models
D3-0255-N
242 A
220 A
160 A
D3-0360-N
360 A
302 A
242 A
D3-0380-N
380 A
341 A
272 A
D3-0430-N
430 A
360 A
302 A
D3-0620-N
620 A
493 A
394 A
D3-0650-N
650 A
515 A
414 A
D3-0790-N
790 A
661 A
527 A
D3-0930-N
930 A
751 A
597 A
D3-1200-N
1200 A
1148 A
932 A
D3-1410-N
1410 A
1200 A
979 A
D3-1600-N
1600 A
1444 A
1181 A

12 Digistart D3: User Guide
Issue: G
Inside delta connection
Internally bypassed
models
Light
300%, 10 seconds
50 ºC <1000 metres
Standard
350%, 30 seconds
50 ºC <1000 metres
Heavy
450%, 30 seconds
50 ºC <1000 metres
D3-0023-B
34 A
31 A
24 A
D3-0043-B
64 A
58 A
43 A
D3-0050-B
75 A
69 A
52 A
D3-0053-B
79 A
79 A
67 A
D3-0076-B
114 A
97 A
69 A
D3-0097-B
145 A
118 A
87 A
D3-0100-B
150 A
126 A
97 A
D3-0105-B
157 A
157 A
118 A
D3-0145-B
217 A
186 A
135 A
D3-0170-B
255 A
211 A
165 A
D3-0200-B
300 A
238 A
202 A
D3-0220-B
330 A
270 A
234 A
D3-0255-B
382 A
307 A
270 A
D3-0350-B
540 A
453 A
360 A
D3-0425-B
637 A
540 A
453 A
D3-0500-B
772 A
576 A
486 A
D3-0580-B
885 A
639 A
540 A
D3-0700-B
1050 A
772 A
646 A
D3-0820-B
1230 A
907 A
763 A
D3-0920-B
1380 A
1009 A
885 A
D3-1000-B
1500 A
1174 A
1080 A
Non-bypassed models
D3-0255-N
363 A
330 A
240 A
D3-0360-N
540 A
453 A
363 A
D3-0380-N
570 A
511 A
408 A
D3-0430-N
645 A
540 A
453 A
D3-0620-N
930 A
739 A
591 A
D3-0650-N
975 A
772 A
621 A
D3-0790-N
1185 A
991 A
790 A
D3-0930-N
1395 A
1126 A
895 A
D3-1200-N
1800 A
1722 A
1398 A
D3-1410-N
2115 A
1800 A
1468 A
D3-1600-N
2400 A
2166 A
1771 A

Digistart D3: User Guide 13
Issue: G
2.2.4 Minimum and Maximum Current Settings
The Digistart D3's minimum and maximum full load current settings depend on the model:
In-line connection
Inside delta connection
Model
Minimum
Maximum
Minimum
Maximum
D3-0023-B
5 A
23 A
5 A
34 A
D3-0043-B
9 A
43 A
9 A
64 A
D3-0050-B
10 A
50 A
10 A
75 A
D3-0053-B
11 A
53 A
11 A
79 A
D3-0076-B
15 A
76 A
15 A
114 A
D3-0097-B
19 A
97 A
19 A
145 A
D3-0100-B
20 A
100 A
20 A
150 A
D3-0105-B
21 A
105 A
21 A
157 A
D3-0145-B
29 A
145 A
29 A
217 A
D3-0170-B
34 A
170 A
34 A
255 A
D3-0200-B
40 A
200 A
40 A
300 A
D3-0220-B
44 A
220 A
44 A
330 A
D3-0255-B
51 A
255 A
51 A
382 A
D3-0255-N
51 A
255 A
51 A
382 A
D3-0350-B
70 A
350 A
70 A
525 A
D3-0360-N
72 A
360 A
72 A
540 A
D3-0380-N
76 A
380 A
76 A
570 A
D3-0425-B
85 A
425 A
85 A
638 A
D3-0430-N
86 A
430 A
86 A
645 A
D3-0500-B
100 A
500 A
100 A
750 A
D3-0580-B
116 A
580 A
116 A
870 A
D3-0620-N
124 A
620 A
124 A
930 A
D3-0650-N
130 A
650 A
130 A
975 A
D3-0700-B
140 A
700 A
140 A
1050 A
D3-0790-N
158 A
790 A
158 A
1185 A
D3-0820-B
164 A
820 A
164 A
1230 A
D3-0920-B
184 A
920 A
184 A
1380 A
D3-0930-N
186 A
930 A
186 A
1395 A
D3-1000-B
200 A
1000 A
200 A
1500 A
D3-1200-N
240 A
1200 A
240 A
1800 A
D3-1410-N
282 A
1410 A
282 A
2115 A
D3-1600-N
320 A
1600 A
320 A
2400 A

14 Digistart D3: User Guide
Issue: G
3 Mechanical Installation
WARNING
Digistart D3 models D3-0145-B to D3-1600-N weigh in excess of 15 kg (33 lb). Use appropriate
safeguards when lifting these models.
WARNING
Models D3-0145-B to D3-1000-B and D3-0255-N to D3-1600-N are intended to be mounted in an
enclosure which prevents access except by trained and authorised personnel, and which prevents the
ingress of contamination. The comp
lete range is designed for use in an environment classified as Pollution
Degree 3 in accordance with IEC60664-1. This means conductive pollution or dry, non-conductive
pollution which becomes conductive due to condensation is acceptable.
It is the installer's responsibility to ensure that any enclosure which allows access to models D3-0145-B to
D3-1000-B and D3-0255-N to D3-1600-N while the product is energized, provides protection against
contact and ingress requirements of IP20.
Models D3-0145-B to D3-1000-B can be installed with optional finger guards, in which case they do not
need to be mounted in an enclosure.

Digistart D3: User Guide 15
Issue: G
3.1 Dimensions and Weights
NOTE
For further details on dimensions and corresponding CAD drawings please contact your local supplier.
Model
Size
A
mm
(inch)
B
mm
(inch)
C
mm
(inch)
D
mm
(inch)
E
mm
(inch)
F
mm
(inch)
G
mm
(inch)
H
mm
(inch)
I
mm
(inch)
Weight
kg
(lb)
D3-0023-B
D3-0043-B
192
4.2
D3-0050-B
(7.6)
(9.3)
D3-0053-B
G1B
156
124
295
278
D3-0076-B
(6.1)
(4.9)
(11.6)
(10.9)
n/a n/a n/a n/a
4.5 (9.9)
D3-0097-B
223
5.0
D3-0100-B
(8.8)
(11.0)
D3-0105-B
D3-0145-B
14.0 (30.9)
D3-0170-B
G2B
282
250
438
380
250
n/a
n/a
n/a
n/a
14.2 (31.3)
D3-0200-B
(11.1)
(9.8)
(17.2)
(15.0)
(9.8)
15
D3-0220-B
(33.1)
D3-0255-B
424
376
440
392
298
26 (57.2)
D3-0350-B
G3B
(16.7)
(14.8)
(17.3)
(15.4)
(11.7)
n/a n/a n/a n/a
29.4
D3-0425-B
(64.8)
D3-0500-B
50.0
D3-0580-B
(110.2)
D3-0700-B
433
320
640
600
297
64.5
D3-0820-B
G4B
(17.0)
(12.6)
(25.2)
(23.6)
(11.7)
n/a
n/a
n/a
n/a
(140.0)
D3-0920-B
64.0
D3-1000-B
(141.1)
D3-0255-N
G3N
390
(15.4)
320
(12.6)
460
(18.1)
400
(15.7)
279
(11.0)
n/a n/a n/a n/a
23
(50.7)
D3-0360-N
36
D3-0380-N
(79.4)
D3-0430-N
430
320
689
522
300
104.5
104.5
5.5
8.5
D3-0620-N
G4N
(16.9)
(12.6)
(27.1)
(20.6)
(11.8)
(4.1)
(4.1)
(0.2)
(0.3)
D3-0650-N
39.5
D3-0790-N
(87.1)
D3-0930-N
51.5
(113.5)
D3-1200-N
128.5
(283.3)
D3-1410-N
G5N 574 500 883 727 361 132.5 129 5 8.5
130
(286.6)
D3-1600-N
(22.6) (19.7) (34.8) (28.6) (14.2) (5.2) (5.1) (0.2) (0.3)
140
(308.7)
NOTE
Dimensions F, G and H are the additional space required for the output and input busbars, in addition
to the overall chassis measurement (C).

16 Digistart D3: User Guide
Issue: G
3.1.1 Bypassed Models (D3-0023-B~D3-1000-B)
D3-0023-B, D3-0043-B, D3-0050-B, D3-0053-B,
D3-0076-B, D3-0097-B, D3-0100-B, D3-0105-B
D3-0145-B, D3-0170-B, D3-0200-B, D3-0220-B
14268.A
14269;A
A
B
C
E
D
D3-0255-B, D3-0350-B, D3-0425-B
D3-0500-B, D3-0580-B, D3-0700-B, D3-0820-B,
D3-0920-B, D3-1000-B
14270;A
A
B
C
E
D
A
B
C
E
D
14271.A

Digistart D3: User Guide 17
Issue: G
3.1.2 Non-bypassed Models (D3-0255-N~D3-1600-N)
D3-0255-N
A
B
CD
14272.A
D3-0360-N, D3-0380-N, D3-0430-N, D3-0620-N, D3-0650-N, D3-0790-N, D3-0930-N, D3-1200-N,
D3-1410-N, D3-1600-N
CD
FI
G
H
E
A
B
14273.A

18 Digistart D3: User Guide
Issue: G
3.2 Physical Installation
1
34
2
08338.A
1
D3-0023-B ~ D3-0220-B: Allow 100 mm (3.94 inches) between soft starters.
D3-0255-B ~ D3-1000-B: Allow 200 mm (7.88 inches) between soft starters.
D3-0255-N: Allow 100 mm (3.94 inches) between soft starters.
D3-0360-N ~ D3-1600-N: Allow 200 mm (7.88 inches) between soft starters.
2
D3-0023-B ~ D3-0220-B: Allow 50 mm (1.97 inches) between the soft starter and solid surfaces.
D3-0255-B ~ D3-1000-B: Allow 200 mm (7.88 inches) between the soft starter and solid surfaces.
D3-0255-N: Allow 100 mm (3.94 inches) between the soft starter and solid surfaces.
D3-0360-N ~ D3-1600-N: Allow 200 mm (7.88 inches) between the soft starter and solid surfaces.
3
Soft starters may be mounted side by side with no clearance (that is, if mounted without communications
modules).
4
The soft starter may be mounted on its side. Derate the soft starter's rated current by 15%.

Digistart D3: User Guide 19
Issue: G
3.3 Busbar Adjustment Procedure
The busbars on non-bypassed models D3-0360-N ~ D3-1600-N can be adjusted for top or bottom input and output as
required.
CAUTION
It is the user's responsibility to follow these instructions correctly. Nidec cannot be held responsible for any
damage to the starter or associated equipment from incorrect practice.
Input/Output
Output
Input
08350.A
Input/Output
Input
Output
ELECTROSTATIC DISCHARGE (ESD)
Many electronic components are sensitive to static electricity. Voltages so low that they cannot be felt,
seen or heard, can reduce the life, affect performance, or completely destroy sensitive electronic
components. When performing service, proper ESD equipment should be used to prevent possible
damage from occurring.
All units are manufactured with input and output busbars at the bottom of the unit as standard. The input and/or
output busbars can be moved to the top of the unit if required.
08604.A
1. Remove all wiring and links from the soft starter
before dismantling the unit.
2. Remove the unit cover (4 screws).
3.
Remove the keypad faceplate, then gently remove the
keypad (2 screws).
4. Remove the control terminal plugs.
5. Gently fold the main plastic away from the starter (12
screws).
6. Unplug the keypad loom from CON 1 (see note).
7. Label each SCR firing loom with the number of the
corresponding terminal on the backplane PCB, then
unplug the looms.
8. Unplug the thermistor, fan and current transformer
wires from the model board.
9. Remove the plastic tray from the starter (four screws).
NOTE
Remove the main plastic slowly to avoid damaging the keypad wiring loom which runs between the main
plastic and the backplane PCB.

20 Digistart D3: User Guide
Issue: G
08605.A
10. Unscrew and remove the magnetic bypass plates
(models D3-0620-N to D3-1600-N only).
11. Remove the current transformer assembly (three
screws).
12. Identify which busbars are to be moved. Remove the
bolts holding these busbars in place then slide the
busbars out through the bottom of the starter (four
bolts per busbar).
08606.A
13. Slide the busbars in through the top of the starter. For
input busbars, the short curved end should be outside
the starter. For output busbars, the unthreaded hole
should be outside the starter.
14. Replace the dome washers with the flat face towards
the busbar, then tighten the bolts holding the busbars
in place to 20 Nm.
15. Place the current transformer assembly over the input
busbars and screw the assembly to the body of the
starter (see note).
16.
Run all wiring to the side of the starter and secure with
cable ties.
NOTE
If moving the input busbars, the current transformers (CTs) must also be reconfigured.
1. Label the CTs L1, L2 and L3 (L1 is leftmost when looking from the front of the starter). Remove the
cable ties and unscrew the CTs from the bracket.
2. Move the CT bracket to the top of the starter. Position the CTs for the correct phases, then screw the
CTs to the bracket. For models D3-0360-N ~ D3-0930-
N, the CTs must be placed on an angle (the left
hand legs of each CT will be on the top row of holes and the right hand legs will be on the bottom
tabs).