ABB ACS880-34 User manual

—
ABB INDUSTRIAL DRIVES
ACS880-34 drive modules (132 to 400 kW, 200
to 400 hp)
Hardware manual

ACS880-34 drive modules (132 to 400
kW, 200 to 400 hp)
Hardware manual
Table of contents
1. Safety instructions
6. Mechanical installation
8. Electrical installation
13. Start-up
3AXD50000035191 Rev C
EN
EFFECTIVE: 2020-03-17

Table of contents
1 Safety instructions
15Contents of this chapter ...........................................................................
15Use of warnings and notes .......................................................................
16General safety in installation, start-up and maintenance ....................................
18Electrical safety in installation, start-up and maintenance ...................................
18Electrical safety precautions ..................................................................
19Additional instructions and notes .............................................................
20Optical components ........................................................................
20Printed circuit boards .......................................................................
20Grounding .......................................................................................
21General safety in operation .......................................................................
22Additional instructions for permanent magnet motor drives .................................
22Safety in installation, start-up, maintenance ................................................
22Safety in operation .............................................................................
2 Introduction to the manual
23Contents of this chapter ...........................................................................
23Applicability .........................................................................................
23Target audience ....................................................................................
23Purpose of the manual ............................................................................
23Categorization by frame size and option code .................................................
24Quick installation, commissioning and operating flowchart ..................................
25Terms and abbreviations ..........................................................................
27Related documents ................................................................................
3 Operation principle and hardware description
29Contents of this chapter ...........................................................................
29Operation principle .................................................................................
30Block diagram of the main circuit of the drive module ....................................
30Line-side converter .............................................................................
31AC voltage and current waveforms ......................................................
31Charging .....................................................................................
31Motor-side converter ...........................................................................
31DC connection ..................................................................................
32Layout ...............................................................................................
32Standard drive module configuration ........................................................
33Drive module ....................................................................................
34LCL filter module ...............................................................................
35Drive module with full power cabling panels (option +H381) ............................
36
Drive module without full-size output cable connection terminals (option +0H371) and
IP20 shrouds (option +0B051) and with common mode filter (option +E208) .........
37Control panel ....................................................................................
38Overview of power and control connections ...................................................
39Type designation label ............................................................................
39Type designation key ..............................................................................
Table of contents 5

4 Generic cabinet planning instructions
43Contents of this chapter ...........................................................................
43Limitation of liability ................................................................................
43Cabinet construction ...............................................................................
43Disposition of the devices .....................................................................
44Grounding of mounting structures ...........................................................
44Busbar material and joints ....................................................................
44Shrouds ..........................................................................................
44Tightening torques .............................................................................
44Electrical connections ......................................................................
44Mechanical connections ...................................................................
45Insulation supports ..........................................................................
45Cable lugs ....................................................................................
45Cooling and degrees of protection ..............................................................
45Planning the cooling ...........................................................................
45Air inlets and outlets ...........................................................................
46Preventing the recirculation of hot air .......................................................
47EMC requirements .................................................................................
49Attaching the cabinet ..............................................................................
49Cabinet placement on a cable channel .........................................................
49Cubicle heaters .....................................................................................
49Mounting the control panel on the cabinet door ...............................................
5 Guidelines for planning the mechanical installation
51Contents of this chapter ...........................................................................
51Installation positions of the drive module .......................................................
52Layout example, door closed .....................................................................
53Layout example, door open (standard drive module configuration) ........................
54Layout example, door open (option +0B051) ..................................................
55Cooling solutions ...................................................................................
56Preventing the recirculation of hot air ...........................................................
56Bookshelf mounting (standard drive module configuration) ..............................
57Bookshelf mounting (option +0B051) ........................................................
58Bookshelf mounting (option +H381) .........................................................
58Required free space ...............................................................................
58Free space at the top of the drive module ..................................................
59Free space around the drive module ........................................................
59ABB air inlet and outlet kits .......................................................................
6 Mechanical installation
61Contents of this chapter ...........................................................................
61Examining the installation site ...................................................................
61Moving and unpacking ............................................................................
62Package drawings ..............................................................................
62Drive module package without option +E202 ...........................................
63Package with option +E202 ...............................................................
64Boxes .........................................................................................
67LCL filter module package .................................................................
68Examining the delivery ............................................................................
68Lifting ................................................................................................
68Attaching the drive module and LCL filter module to a mounting plate or wall ...........
6 Table of contents

69Attaching the drive module to the LCL filter module ..........................................
69Attaching the drive module and the LCL filter module to the cabinet base ................
69Grounding the drive module and the LCL filter module ......................................
69Installing the drive in Rittal VX25 enclosure ...................................................
70Optional input power cable connection terminals and ground busbar assembly (+H370) .
70
Drive module without full-size output cable connection terminals (option +0H371) and
IP20 shrouds (option +0B051) ...................................................................
7 Guidelines for planning the electrical installation
71Contents of this chapter ...........................................................................
71Limitation of liability ................................................................................
71Selecting the main supply disconnecting device ..............................................
71European Union ................................................................................
72North America ...................................................................................
72Other regions ...................................................................................
72Selecting the main contactor .....................................................................
72Examining the compatibility of the motor and drive ...........................................
72Protecting the motor insulation and bearings ..............................................
73Requirements table ............................................................................
75Availability of du/dtfilter and common mode filter by drive type .....................
75Additional requirements for explosion-safe (EX) motors ..............................
75
Additional requirements for ABB motors of types other than M2_, M3_, M4_, HX_
and AM_ ......................................................................................
75Additional requirements for the regenerative and low harmonics drives ...........
75Additional requirements for ABB high-output and IP23 motors ......................
75Additional requirements for non-ABB high-output and IP23 motors .................
76Additional data for calculating the rise time and the peak line-to-line voltage .....
77Additional note for sine filters .............................................................
77Selecting the power cables .......................................................................
77General guidelines .............................................................................
78Typical power cable sizes .....................................................................
78Power cable types ..............................................................................
78Preferred power cable types ..............................................................
79Alternate power cable types ...............................................................
80Not allowed power cable types ...........................................................
80Additional guidelines, North America ........................................................
81Metal conduit ................................................................................
81Power cable shield .............................................................................
81Selecting the control cables ......................................................................
81Shielding .........................................................................................
82Signals in separate cables ....................................................................
82Signals that can be run in the same cable ..................................................
82Relay cable ......................................................................................
82Control panel to drive cable ...................................................................
82PC tool cable ....................................................................................
82Routing the cables .................................................................................
82General guidelines – IEC ......................................................................
83General guidelines – North America .........................................................
84
Continuous motor cable shield/conduit or enclosure for equipment on the motor
cable ..............................................................................................
84Separate control cable ducts .................................................................
Table of contents 7

85Implementing motor and motor cable short-circuit and thermal overload protection .....
85Protecting the motor and motor cable in short-circuits ....................................
85Protecting the motor cables against thermal overload ....................................
85Protecting the motor against thermal overload .............................................
85Protecting the motor against overload without thermal model or temperature sensors .
86Protecting the drive and input cable in short-circuits and against thermal overload .....
86Protecting the drive and the input power cable in short-circuits .........................
86Circuit breakers .............................................................................
86Protecting the drive and the input power cable against thermal overload .............
86Implementing a motor temperature sensor connection ......................................
87Connecting motor temperature sensor to the drive via an option module .............
88Protecting the drive against ground faults ......................................................
88Residual current device compatibility ........................................................
88Implementing the Emergency stop function ....................................................
88Implementing the Safe torque off function .....................................................
88Implementing the functions provided by the FSO-xx safety functions module ............
89Using power factor compensation capacitors with the drive .................................
89Using a safety switch between the drive and the motor ......................................
89Implementing an ATEX-certified motor thermal protection ...................................
89Implementing the undervoltage control (Power-loss ride-through) .........................
90Controlling a contactor between drive and motor .............................................
90Implementing a bypass connection .............................................................
90Protecting the contacts of relay outputs ........................................................
8 Electrical installation
93Contents of this chapter ...........................................................................
93Safety ................................................................................................
93Grounding the motor cable shield at the motor end ..........................................
94Measuring the insulation ..........................................................................
94Measuring the insulation of the drive ........................................................
94Measuring the insulation of the input power cable ........................................
94Measuring the insulation of the motor and motor cable ..................................
94Measuring the insulation of brake resistor and resistor cable ...........................
95
Compatibility with IT (ungrounded), corner-grounded delta, midpoint-grounded delta,
and TT systems ....................................................................................
95EMC filter (option +E202) .....................................................................
95Ground-to-phase varistor ......................................................................
95Corner-grounded and midpoint-grounded delta systems .................................
95
When to disconnect EMC filter (option +E202) or ground-to-phase varistor: TN-S, IT,
corner-grounded delta, and midpoint-grounded delta system ...........................
97Guidelines for installing the drive to a TT system .........................................
97Disconnecting EMC filter and ground-to-phase varistor ..................................
98Identifying the earthing system of the electrical power network .........................
98Installing the EMC filter (option +E202) .........................................................
98Connecting the power cables ....................................................................
99Power cable connection diagram ............................................................
101Preparing the cable ends and making 360-degree grounding at the cable entry .....
102Power cable connection procedure ..........................................................
103Removing the control panel holder from the external control unit ..........................
103Attaching the control cable clamp plate ........................................................
104Connecting the external control unit to the drive module ....................................
104External control unit connection cables .....................................................
8 Table of contents

105Routing the external control unit cables into the drive module ..........................
105Connecting control cables to the drive module ............................................
105Connecting control cables to the control unit ...............................................
106Attaching the external control unit ...............................................................
107Attaching the external control unit to a mounting plate or wall ...........................
107Attaching the external control unit vertically on a DIN rail ................................
108Attaching the external control unit horizontally on a DIN rail .............................
109Connecting the control cables to the terminals of the external control unit ................
109Connecting a control panel .......................................................................
110Panel bus (Control of several units from one control panel) .................................
113Panel bus wiring with FDPI-02 – single drive ..............................................
114Panel bus wiring with FDPI-02 and ZDPI-01 – several drives ...........................
114Panel bus wiring with FDPI-02 – several drives ...........................................
115Connecting a PC ...................................................................................
115Installing option modules .........................................................................
115Installing the FSO-xx safety functions module .............................................
116Installing I/O extension, fieldbus adapter and pulse encoder interface modules .....
117Wiring the option modules ....................................................................
9 External control unit
119Contents of this chapter ...........................................................................
120ZCU-14 layout ......................................................................................
121Default I/O connection diagram ..................................................................
122Additional information on I/O connections ......................................................
122External power supply for the control unit (XPOW) .......................................
122DI6 as a PTC sensor input ....................................................................
123AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input .............................
124DIIL input ........................................................................................
124The XD2D connector ..........................................................................
124Safe torque off (XSTO) ........................................................................
125FSO-xx safety functions module connection (X12) ........................................
126Connector data .....................................................................................
128ZCU-1x ground isolation diagram ............................................................
10 Installation example of the standard drive module configuration
129Contents of this chapter ...........................................................................
129Limitation of liability ................................................................................
129Safety ................................................................................................
130Required parts ......................................................................................
130Required tools ......................................................................................
130Overall flowchart of the installation process ...................................................
131Installing the drive module and LCL filter module into a cabinet ............................
133Connecting the power cables and installing the shrouds ....................................
134Installing the roof and door (Rittal parts) .......................................................
11 Installation example with full cabling panels (option +H381)
135Contents of this chapter ...........................................................................
135Limitation of liability ................................................................................
135Safety ................................................................................................
136Required parts ......................................................................................
136Required tools ......................................................................................
Table of contents 9

137Overall flowchart of the installation process ...................................................
137Installing the mechanical accessories into the cabinet .......................................
139Connecting the power cables ....................................................................
139Connection diagram ............................................................................
140Power cable connection procedure ..........................................................
142Installing the drive module into the cabinet ....................................................
143Installation procedure ..........................................................................
144Assembly drawing of connecting the drive module to the cabling panels ..........
145Installing air baffles (non-ABB parts) ............................................................
145Miscellaneous ......................................................................................
145Installing the rubber grommet ................................................................
12 Installation checklist of the drive
147Contents of this chapter ...........................................................................
147Checklist .............................................................................................
13 Start-up
149Contents of this chapter ...........................................................................
149Start-up procedure .................................................................................
14 Fault tracing
151Contents of this chapter ...........................................................................
151LEDs .................................................................................................
151Warning and fault messages .....................................................................
15 Maintenance
153Contents of this chapter ...........................................................................
153Maintenance intervals .............................................................................
154Cleaning the interior of the cabinet ..............................................................
155Cleaning the interior of the heatsink ............................................................
156Cleaning the interior of the LCL filter ............................................................
156Fans ..................................................................................................
156Replacing the auxiliary cooling fans of the drive module .................................
157Replacing the drive module main cooling fans .............................................
158Replacing the LCL filter module cooling fan ................................................
159Replacing the standard drive module ...........................................................
162Replacing the LCL filter module .................................................................
162Replacing the drive module with option +H381 ................................................
164Replacing the LCL filter module with option +H381 ..........................................
165Capacitors ...........................................................................................
165Reforming the capacitors ......................................................................
165Control panel .......................................................................................
165Cleaning the control panel ....................................................................
165Replacing the control panel battery ..........................................................
165Replacing the ZCU-14 control unit battery .....................................................
166Memory unit .........................................................................................
166Replacing the memory unit ...................................................................
167Replacing the line-side converter control unit memory unit ..............................
10 Table of contents

16 Ordering information
169Contents of this chapter ...........................................................................
169ACS-AP-W and ACS-AP-I control panel .......................................................
170Brake choppers and resistors ....................................................................
170Output (du/dt) filters ...............................................................................
170Sine filters ...........................................................................................
170EMC filter ARFI-10 .................................................................................
170Cabinet ventilation .................................................................................
170Air inlet kits ......................................................................................
172Air outlet kits ....................................................................................
173Cooling fans ........................................................................................
174FSO accessories kit ...............................................................................
174Control panel mounting platforms ...............................................................
174Retrofit accessory kits .............................................................................
17 Technical data
175Contents of this chapter ...........................................................................
175Ratings ..............................................................................................
177When is derating necessary ..................................................................
177Ambient temperature derating ................................................................
177Altitude derating ................................................................................
178Deratings for special settings in the drive control program ...............................
179High speed mode ...........................................................................
181Derating for output voltage boosting .........................................................
183Fuses (IEC) .........................................................................................
184Fuses (UL Recognized) ...........................................................................
185Dimensions, weights and free space requirements ...........................................
186Losses, cooling data and noise ..................................................................
186Typical power cable sizes .........................................................................
187Terminal and entry data for the power cables .................................................
188Units with optional cabling panels (+H381) .................................................
188
Units without full-size output cable connection terminals (+0H371) and with a common
mode filter (+E208) .............................................................................
188Terminal data for the control cables .............................................................
188Electrical power network specification ..........................................................
189Motor connection data ............................................................................
190DC connection data ................................................................................
190Control panel type .................................................................................
191Efficiency ............................................................................................
191Protection classes .................................................................................
191Ambient conditions ................................................................................
192Materials .............................................................................................
193Applicable standards ..............................................................................
193Markings .............................................................................................
194EMC compliance (IEC/EN 61800-3:2004) .....................................................
194Definitions .......................................................................................
194Category C2 .....................................................................................
195Category C3 .....................................................................................
196Category C4 .....................................................................................
196UL and CSA checklist .............................................................................
197EU Declaration of Conformity (Machinery Directive) .........................................
Table of contents 11

197Disclaimer ...........................................................................................
197Generic disclaimer .............................................................................
198Cybersecurity disclaimer ......................................................................
18 Dimension drawings
199Contents of this chapter ...........................................................................
200Standard configuration ............................................................................
201Location of power cable connection terminals with options +H370, +H356 ...............
202Drive module with options +0B051+H356+0H371 ............................................
203Configuration with option +H381 ................................................................
204LCL filter module ...................................................................................
205Bottom plate ........................................................................................
206Air baffles ............................................................................................
206Material of the air baffles ......................................................................
207Air baffles for option +H381 in 800 mm wide Rittal VX25 enclosure .......................
208External control unit ...............................................................................
19 Example circuit diagrams
209Contents of this chapter ...........................................................................
209Example circuit diagram ..........................................................................
20 The Safe torque off function
211Contents of this chapter ...........................................................................
211Description ..........................................................................................
212Compliance with the European Machinery Directive ......................................
213Wiring ................................................................................................
213Activation switch ................................................................................
213Cable types and lengths .......................................................................
213Grounding of protective shields ..............................................................
214Single drive (internal power supply) .........................................................
214Dual-channel connection ..................................................................
215Single-channel connection ................................................................
216Multiple drives ...................................................................................
216Internal power supply ......................................................................
217External power supply ......................................................................
218Operation principle .................................................................................
219Start-up including acceptance test ..............................................................
219Competence .....................................................................................
219Acceptance test reports .......................................................................
219Acceptance test procedure ...................................................................
221Use ...................................................................................................
222Maintenance ........................................................................................
222Competence .....................................................................................
223Fault tracing .........................................................................................
224Safety data ..........................................................................................
224Abbreviations ...................................................................................
225TÜV certificate ..................................................................................
226Declaration of conformity ......................................................................
21 Resistor braking
227Contents of this chapter ...........................................................................
12 Table of contents

227Operation principle and hardware description .................................................
227Planning the braking system .....................................................................
227Selecting the default brake circuit components - ABB chopper and ABB resistor ....
228
Calculating the maximum allowed braking power for a custom duty cycle – ABB
chopper and ABB resistor .....................................................................
228Example ......................................................................................
228
Selecting the default brake circuit components - ABB brake chopper and custom
resistor ...........................................................................................
229Selecting custom resistors .................................................................
230
Calculating the maximum allowed braking power for a custom duty cycle – ABB
chopper and custom resistor .................................................................
230Example 1 ....................................................................................
230Example 2 ....................................................................................
231Selecting and routing brake resistor cables ....................................................
231Minimizing electromagnetic interference ....................................................
231Maximum cable length .........................................................................
231Placing the brake resistors ....................................................................
232Protecting the system against thermal overload ...........................................
232Protecting the resistor cable against short-circuits ........................................
232Mechanical installation of resistors ..............................................................
232Electrical installation ...............................................................................
232Measuring the insulation of the brake resistor circuit .....................................
233Connection diagram ............................................................................
233Connection procedure .........................................................................
234Start-up ..............................................................................................
235Technical data ......................................................................................
235Ratings ...........................................................................................
235ABB brake chopper and DC fuse ratings ................................................
236ABB brake resistor ratings .................................................................
237ABB resistors (SAFUR) - additional data ...................................................
237Dimensions, weights and ordering codes ...............................................
237Brake chopper types and ordering codes ...................................................
237Terminals and cable entry data ...............................................................
22 Filters
239Contents of this chapter ...........................................................................
239du/dtfilters ..........................................................................................
239When is a du/dtfilter necessary? ............................................................
239Selection table ..................................................................................
240Ordering codes .................................................................................
240Description, installation and technical data of the FOCH filters .........................
240Sine filters ...........................................................................................
240When is a sine filter necessary? .............................................................
240Selection table ..................................................................................
240ABB ordering codes ............................................................................
240Derating ..........................................................................................
240Description, installation and technical data of the sine filters ............................
23 Step-by-step drawings for an installation example of standard drive
configuration in Rittal VX25 800 mm wide enclosure
241Contents of this chapter ...........................................................................
Table of contents 13

242........................................................................................................
Further information
14 Table of contents

Safety instructions
Contents of this chapter
This chapter contains the safety instructions which you must obey when you install, start
up, operate and do maintenance work on the drive. If you ignore the safety instructions,
injury, death or damage can occur.
Use of warnings and notes
Warnings tell you about conditions which can cause injury or death, or damage to the
equipment. They also tell you how to prevent the danger. Notes draw attention to a particular
condition or fact, or give information on a subject.
The manual uses these warning symbols:
WARNING!
Electricity warning tells about hazards from electricity which can cause injury or
death, or damage to the equipment.
WARNING!
General warning tells about conditions, other than those caused by electricity,
which can cause injury or death, or damage to the equipment.
WARNING!
Electrostatic sensitive devices warning tells you about the risk of electrostatic
discharge which can cause damage to the equipment.
1
Safety instructions 15

General safety in installation, start-up and maintenance
These instructions are for all personnel who do work on the drive.
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
• Keep the drive in its package until you install it. After unpacking, protect the drive from
dust, debris and moisture.
•Use the required personal protective equipment: safety shoes with metal toe cap, safety
glasses, protective gloves and long sleeves, etc. Some parts have sharp edges.
•Lift a heavy drive with a lifting device. Use the designated lifting points. See the dimension
drawings.
• Incorrect lifting can cause danger or damage. Obey the local laws and regulations
applicable to lifting, such as requirements for planning the lift, for capacity and condition
of lifting equipment, and for training of personnel.
• Attach the drive cabinet to the floor to prevent it from toppling over. The cabinet has a
high center of gravity. When you pull out heavy components or power modules, there
is a risk of overturning. Attach the cabinet also to the wall when necessary.
•Do not use the module installation ramp with plinth heights which exceeds the maximum
allowed height. See the technical data.
• Attach the module extraction/installation ramp carefully.
16 Safety instructions
3

• Make sure that the module does not topple over when you move it on the floor: Open
the support legs by pressing each leg a little down (1, 2) and turning it aside. Whenever
possible attach the module also with chains. Do not tilt the drive module. It is heavy and
its center of gravity is high. The module overturns from a sideways tilt of 5 degrees. Do
not leave the module unattended on a sloping floor.
1
2
3
3AUA0000086323
• To prevent the drive module from falling, attach its top lifting lugs with chains to the
cabinet (1) before you push the module into the cabinet and pull it from the cabinet.
Push the module into the cabinet and pull it from the cabinet carefully preferably with
help from another person. Keep a constant pressure with one foot on the base of the
module (2) to prevent the module from falling on its back.
1
2
1
2
• Beware of hot surfaces. Some parts, such as heatsinks of power semiconductors, and
brake resistors, remain hot for a while after disconnection of the electrical supply.
Safety instructions 17

• Vacuum clean the area around the drive before the start-up to prevent the drive cooling
fan from drawing the dust inside the drive.
• Make sure that debris from drilling, cutting and grinding does not enter the drive during
the installation. Electrically conductive debris inside the drive may cause damage or
malfunction.
• Make sure that there is sufficient cooling. See the technical data.
• Keep the cabinet doors closed when the drive is powered. With the doors open, a risk
of a potentially fatal electric shock, arc flash or high-energy arc blast exists. If you cannot
avoid working on a powered drive, obey the local laws and regulations on live working
(including – but not limited to – electric shock and arc protection).
• Before you adjust the drive operation limits, make sure that the motor and all driven
equipment can operate throughout the set operation limits.
• Before you activate the automatic fault reset or automatic restart functions of the drive
control program, make sure that no dangerous situations can occur. These functions
reset the drive automatically and continue operation after a fault or supply break. If these
functions are activated, the installation must be clearly marked as defined in
IEC/EN 61800-5-1, subclause 6.5.3, for example, "THIS MACHINE STARTS
AUTOMATICALLY".
• The maximum drive power cycles is five times in ten minutes. Power cycling the drive
too often can damage the charging circuit of the DC capacitors.
• If you have connected safety circuits to the drive (for example, Safe torque off or
emergency stop), validate them at start-up. See separate instructions for the safety
circuits.
• Beware of hot air exiting from the air outlets.
• Do not cover the air inlet or outlet when the drive is running.
Note:
• If you select an external source for the start command and it is on, the drive will start
immediately after fault reset unless you configure the drive for pulse start. See the
firmware manual.
• If the drive is in remote control mode, you cannot stop or start the drive with the control
panel.
• Only authorized persons are allowed to repair a malfunctioning drive.
Electrical safety in installation, start-up and maintenance
￭Electrical safety precautions
These electrical safety precautions are for all personnel who do work on the drive, motor
cable or motor.
18 Safety instructions
3

WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
If you are not a qualified electrical professional, do not do installation or
maintenance work.
Go through these steps before you begin any installation or maintenance work.
1. Clearly identify the work location and equipment.
2. Disconnect all possible voltage sources. Make sure that re-connection is not possible.
Lock out and tag out.
• Open the main disconnecting device of the drive.
• Open the charging switch if present.
• Open the disconnector of the supply transformer. (The main disconnecting device
in the drive cabinet does not disconnect the voltage from the AC input power busbars
of the drive cabinet.)
• Open the auxiliary voltage switch-disconnector (if present), and all other possible
disconnecting devices that isolate the drive from dangerous voltage sources.
•If you have a permanent magnet motor connected to the drive, disconnect the motor
from the drive with a safety switch or by other means.
• Disconnect any dangerous external voltages from the control circuits.
• After you disconnect power from the drive, always wait 5 minutes to let the
intermediate circuit capacitors discharge before you continue.
3. Protect any other energized parts in the work location against contact.
4. Take special precautions when close to bare conductors.
5. Measure that the installation is de-energized. If the measurement requires removal or
disassembly of shrouding or other cabinet structures, obey the local laws and regulations
applicable to live working (including – but not limited to – electric shock and arc
protection).
• Use a multimeter with an impedance greater than 1 Mohm.
• Make sure that the voltage between the drive input power terminals (L1, L2, L3)
and the grounding (PE) busbar is close to 0 V.
• Make sure that the voltage between the drive output terminals (T1/U, T2/V, T3/W)
and the grounding (PE) busbar is close to 0 V.
• Make sure that the voltage between the drive DC busbars (+ and -) and the
grounding (PE) busbar is close to 0 V.
6. Install temporary grounding as required by the local regulations.
7. Ask the person in control of the electrical installation work for a permit to work.
￭Additional instructions and notes
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
If you are not a qualified electrical professional, do not do installation or
maintenance work.
Safety instructions 19

• Keep the cabinet doors closed when the drive is powered. With the doors open, a risk
of a potentially fatal electric shock, arc flash or high-energy arc blast exists.
• Make sure that the electrical power network, motor/generator, and environmental
conditions agree with the drive data.
• Do not do insulation or voltage withstand tests on the drive.
• If you have a cardiac pacemaker or other electronic medical device, keep away from
the area near motor, drive, and the drive power cabling when the drive is in operation.
There are electromagnetic fields present which can interfere with the function of such
devices. This can cause a health hazard.
• Remove the code labels attached to mechanical parts such as busbars, shrouds and
sheet metal parts before installation. They may cause bad electrical connections, or,
after peeling off and collecting dust in time, cause arcing or block the cooling air flow.
Note:
• The motor cable terminals of the drive are at a dangerous voltage when the input power
is on, regardless of whether the motor is running or not.
• When the input power is on, the drive DC bus is at a dangerous voltage.
• External wiring can supply dangerous voltages to the relay outputs of the control units
of the drive.
• The Safe torque off function does not remove the voltage from the main and auxiliary
circuits. The function is not effective against deliberate sabotage or misuse.
Optical components
WARNING!
Obey these instructions. If you ignore them, damage to the equipment can occur.
• Handle the fiber optic cables with care.
• When you unplug the fiber optic cables, always hold the connector, not the cable itself.
• Do not touch the ends of the fibers with bare hands as the ends are extremely sensitive
to dirt.
• Do not bend the fiber optic cables too tightly. The minimum allowed bend radius is
35 mm (1.4”).
Printed circuit boards
WARNING!
Use a grounding wrist band when you handle printed circuit boards. Do not touch
the boards unnecessarily. The boards contain components sensitive to electrostatic
discharge.
￭Grounding
These instructions are for all personnel who are responsible for the grounding of the drive.
WARNING!
Obey these instructions. If you ignore them, injury or death, or equipment
malfunction can occur, and electromagnetic interference can increase.
If you are not a qualified electrical professional, do not do grounding work.
20 Safety instructions
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