ABB ACS880-11 User manual

—
ABB INDUSTRIAL DRIVES
ACS880-11 drives
Hardware manual

ACS880-11 drives
Hardware manual
Table of contents
1. Safety instructions
4. Mechanical installation
6. Electrical installation – IEC
7. Electrical installation – North
America (NEC)
10. Start-up
3AXD50000045932 Rev F
EN
Original instructions
EFFECTIVE: 2021-07-15

Table of contents
1 Safety instructions
13Contents of this chapter ......................................................................................
13Use of warnings and notes .................................................................................
14General safety in installation, start-up and maintenance ....................................
15Electrical safety in installation, start-up and maintenance ..................................
15Electrical safety precautions ........................................................................
16Additional instructions and notes .................................................................
17Printed circuit boards ........................................................................
17Grounding ....................................................................................................
19General safety in operation .................................................................................
19Additional instructions for permanent magnet motor drives ................................
19Safety in installation, start-up, maintenance ................................................
20Safety in operation .......................................................................................
2 Introduction to the manual
21Contents of this chapter ......................................................................................
21Target audience ..................................................................................................
21Categorization by frame size and option code ....................................................
21Quick installation, commissioning and operation flowchart ................................
23Terms and abbreviations .....................................................................................
24Related documents .............................................................................................
3 Operation principle and hardware description
27Contents of this chapter ......................................................................................
28Operation principle ..............................................................................................
29DC voltage boost function ............................................................................
29DC connection ..............................................................................................
30Layout .................................................................................................................
32Overview of power and control connections .......................................................
33Control panel .......................................................................................................
34Control panel door mounting kits .................................................................
34Control panel mounting platform cover ........................................................
34Control of several drives ..............................................................................
35Type designation label ........................................................................................
35Type designation key ..........................................................................................
36Basic code ....................................................................................................
36Option codes ................................................................................................
Table of contents 5

4 Mechanical installation
39Contents of this chapter ......................................................................................
39Cabinet installation (options +P940 and +P944) ................................................
39Flange mounting (option +C135) ........................................................................
40Safety ..................................................................................................................
40Examining the installation site ............................................................................
40Installation orientations .......................................................................................
42Required tools .....................................................................................................
43Moving the drive ..................................................................................................
43Unpacking and examining delivery .....................................................................
49Installing the drive vertically ................................................................................
51Installing the drive vertically side by side ............................................................
51Installing the drive horizontally ............................................................................
5 Guidelines for planning the electrical installation
53Contents of this chapter ......................................................................................
53Limitation of liability .............................................................................................
53Selecting the main supply disconnecting device ................................................
53AC main power supply .................................................................................
54European Union and United Kingdom ..............................................
54North America ...................................................................................
54Other regions ....................................................................................
54DC solar PV main power supply ..................................................................
54Selecting the main contactor ..............................................................................
55North America ..............................................................................................
55Other regions ...............................................................................................
55Examining the compatibility of the motor and drive ............................................
55Protecting the motor insulation and bearings ...............................................
56Requirements table ......................................................................................
59Availability of du/dtfilter and common mode filter by drive type .......
59Additional requirements for explosion-safe (EX) motors ..................
59
Additional requirements for ABB motors of types other than M2_,
M3_, M4_, HX_ and AM_ .................................................................
59
Additional requirements for the regenerative and low harmonics
drives ................................................................................................
59Additional requirements for ABB high-output and IP23 motors ........
60Additional requirements for non-ABB high-output and IP23 motors ..
61
Additional data for calculating the rise time and the peak line-to-line
voltage ..............................................................................................
63Additional note for sine filters ...........................................................
63Selecting the AC power cables ...........................................................................
63General guidelines .......................................................................................
64Typical power cable sizes ............................................................................
6 Table of contents

64Power cable types ........................................................................................
64Preferred power cable types .............................................................
65Alternate power cable types .............................................................
66Not allowed power cable types .........................................................
67Additional guidelines, North America ...........................................................
67Metal conduit ....................................................................................
68Power cable shield .......................................................................................
68Selecting the control cables ................................................................................
68Shielding ......................................................................................................
69Signals in separate cables ...........................................................................
69Signals that can be run in the same cable ...................................................
69Relay cable ..................................................................................................
69Control panel to drive cable .........................................................................
69PC tool cable ................................................................................................
69Routing the cables ..............................................................................................
69General guidelines – IEC .............................................................................
70General guidelines – North America ............................................................
71
Continuous motor cable shield/conduit or enclosure for equipment on the
motor cable ..................................................................................................
72Separate control cable ducts .......................................................................
72DC voltage boost function ...................................................................................
72
Protecting the drive, input power cable, motor and motor cable in short circuit
situations and against thermal overload .............................................................
72Protecting the drive and the input power cable in short-circuits ...................
73Circuit breakers ............................................................................................
73Protecting the motor and motor cable in short-circuits .................................
73Protecting the motor cables against thermal overload .................................
74Protecting the motor against thermal overload ............................................
74
Protecting the motor against overload without thermal model or temperature
sensors .........................................................................................................
75Implementing a motor temperature sensor connection ......................................
76Connecting motor temperature sensor to the drive via an option module ....
76Protecting the drive against ground faults ..........................................................
76Residual current device compatibility ...........................................................
77Implementing the emergency stop function ........................................................
77Implementing the Safe torque off function ..........................................................
77Implementing the power loss ride-through function ............................................
78Implementing the functions provided by the FSO-xx safety functions module ....
78Using power factor compensation capacitors with the drive ...............................
79Using a safety switch between the drive and the motor .....................................
79Implementing an ATEX-certified motor thermal protection .................................
79Controlling a contactor between drive and motor ...............................................
80Implementing a bypass connection ....................................................................
80Protecting the contacts of relay outputs ..............................................................
Table of contents 7

6 Electrical installation – IEC
83Contents of this chapter ......................................................................................
83Safety ..................................................................................................................
83Required tools .....................................................................................................
83Grounding the motor cable shield at the motor end ............................................
84Measuring the insulation .....................................................................................
84Measuring the insulation resistance of the drive ..........................................
84Measuring the insulation resistance of the input power cable .....................
84Measuring the insulation resistance of the motor and motor cable ..............
85Grounding system compatibility check ...............................................................
85EMC filter option +E200 or +E202 ...............................................................
85Ground-to-phase varistors ...........................................................................
86Corner-grounded and midpoint-grounded 525…690 V delta systems ........
86
When to disconnect EMC filter (options +E200 and +E202) or
ground-to-phase varistor: TN-S, IT, corner-grounded delta and
midpoint-grounded delta systems and TT systems .....................................
89Identifying the grounding system of the electrical power network ................
90
Disconnecting integrated EMC filter (option +E200 or +E202) and
ground-to-phase varistor – frame R3 ...........................................................
91
Disconnecting integrated EMC filter (option +E200 or +E202) and
ground-to-phase varistor – frame R6 ...........................................................
92
Disconnecting integrated EMC filter and ground-to-phase varistor –
frame R8 ......................................................................................................
93Connecting the power cables .............................................................................
93Connection diagram .....................................................................................
94Connection procedure ..................................................................................
100R8 power cable connection if you detach the cable connectors .......
101Connecting the control cables ............................................................................
101Connection diagram .....................................................................................
101Connection procedure ..................................................................................
105Installing option modules ....................................................................................
105Mechanical installation of option modules ...................................................
106Wiring option modules .................................................................................
106Installation of safety functions modules .......................................................
106Installation procedure into Slot 2 ......................................................
107Installation next to the control unit on frames R6 and R8 .................
109Reinstalling cover(s) ...........................................................................................
110Connecting a PC .................................................................................................
110Panel bus (Control of several units from one control panel) ...............................
7 Electrical installation – North America (NEC)
113Contents of this chapter ......................................................................................
113Safety ..................................................................................................................
113Required tools .....................................................................................................
8 Table of contents

113Required tools .....................................................................................................
114Measuring the insulation .....................................................................................
114Grounding system compatibility check ...............................................................
114Connecting the power cables .............................................................................
114Connection diagram .....................................................................................
115Connection procedure ..................................................................................
123R8 power cable connection if you detach the connectors ................
124Connecting the control cables ............................................................................
124Connection diagram .....................................................................................
124Connection procedure ..................................................................................
127Installing option modules ....................................................................................
127Reinstalling cover(s) ...........................................................................................
128Connecting a PC .................................................................................................
128Controlling several drives through the panel bus ................................................
8 Control units of the drive
129Contents of this chapter ......................................................................................
130ZCU-12 layout .....................................................................................................
131Default I/O diagram of the drive control unit (ZCU-1x) .......................................
133Additional information on the connections ..........................................................
133External power supply for the control unit (XPOW) .....................................
133DI6 as a PTC sensor input ...........................................................................
133AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input .......................
134DIIL input ......................................................................................................
134The XD2D connector ...................................................................................
135Safe torque off (XSTO) ................................................................................
135FSO-xx safety functions module connection (X12) ......................................
136Connector data ...................................................................................................
138ZCU-1x ground isolation diagram ................................................................
9 Installation checklist
139Contents of this chapter ......................................................................................
139Checklist .............................................................................................................
10 Start-up
141Contents of this chapter ......................................................................................
141Start-up procedure ..............................................................................................
11 Maintenance
143Contents of this chapter ......................................................................................
143Maintenance intervals .........................................................................................
143Description of symbols .................................................................................
143Recommended maintenance intervals after start-up ...................................
Table of contents 9

145Cleaning the exterior of the drive ........................................................................
145Cleaning the heatsink .........................................................................................
146Fans ....................................................................................................................
147Replacing the main cooling fan, frame R3 ...................................................
148Replacing the main cooling fan, frame R6 ...................................................
149Replacing the main cooling fan, frame R8 ...................................................
150Replacing the auxiliary cooling fan, IP55 (UL Type 12) frame R3 ...............
151Replacing the auxiliary cooling fan, frame R6 ..............................................
152Replacing the auxiliary cooling fan, frame R8 ..............................................
153Replacing the second auxiliary cooling fan IP55 (UL Type 12), frame R8 ....
155Capacitors ...........................................................................................................
155Reforming the capacitors .............................................................................
155Control panel .......................................................................................................
155Drive LEDs ..........................................................................................................
156Control unit ..........................................................................................................
156Replacing the memory unit of ZCU-12 .........................................................
157Replacing the ZCU-12 control unit battery ...................................................
158
Replacing safety functions modules (FSO-12, option +Q973 and FSO-21, option
+Q972) ................................................................................................................
159Functional safety components ............................................................................
12 Technical data
161Contents of this chapter ......................................................................................
161Ratings ................................................................................................................
164Deratings ......................................................................................................
164Surrounding air temperature derating, IP21 (UL Type 1) .................
165Surrounding air temperature derating, IP55 (UL Type 12) ...............
166Altitude derating ................................................................................
167Deratings for special settings in the drive control program ...............
170Derating for output voltage boost .....................................................
170Fuses (IEC) .........................................................................................................
171aR fuses DIN 43653 stud-mount .................................................................
172aR fuses DIN 43620 blade style ..................................................................
173gG fuses DIN 43620 blade style ..................................................................
173Quick guide for selecting between gG and aR fuses ...................................
174Calculating the short-circuit current of the installation .................................
175Calculation example .........................................................................
176Fuses (UL) ..........................................................................................................
177Circuit breakers (IEC) .........................................................................................
177Circuit breakers (UL) ...........................................................................................
177ABB inverse time circuit breakers ................................................................
179Dimensions, weights and free space requirements ............................................
180Free space requirements .............................................................................
181Package dimensions ....................................................................................
10 Table of contents

182Losses, cooling data and noise ..........................................................................
182IEC ...............................................................................................................
183UL (NEC) ......................................................................................................
183Cooling air flow and heat dissipation for flange mounting (option +C135) ....
184Terminal and entry data for the power cables .....................................................
185UL listed cable lugs and tools ......................................................................
186Terminal and entry data for the control cables ....................................................
186IEC ...............................................................................................................
186North America ..............................................................................................
187Power cables ......................................................................................................
188Electrical power network specification ................................................................
191Motor connection data ........................................................................................
191Control unit (ZCU-12) control unit connection data ............................................
191Efficiency .............................................................................................................
191Energy efficiency (ecodesign) .............................................................................
192Protection classes for module .............................................................................
192Materials .............................................................................................................
193Applicable standards ...........................................................................................
193Ambient conditions ..............................................................................................
195Markings .............................................................................................................
196Compliance with the EN 61800-3:204 + A1:2012 ...............................................
196Definitions ....................................................................................................
196Category C2 .................................................................................................
197Category C3 .................................................................................................
197Category C4 .................................................................................................
198UL and CSA checklist .........................................................................................
199Declarations of conformity ..................................................................................
199Design lifetime expectancy .................................................................................
200Disclaimers .........................................................................................................
200Generic disclaimer .......................................................................................
200Cybersecurity disclaimer ..............................................................................
13 Dimension drawings
201Contents of this chapter ......................................................................................
202R3, IP21 (UL Type 1) ..........................................................................................
203R3 – Option +B056 (IP55, UL Type 12) ..............................................................
204R6, IP21 (UL Type 1) ..........................................................................................
205R6 – Option +B056 (IP55, UL Type 12) ..............................................................
206R8, IP21 (UL Type 1) ..........................................................................................
207R8 – Option +B056 (IP55, UL Type 12) ..............................................................
14 The Safe torque off function
209Contents of this chapter ......................................................................................
Table of contents 11

209Description ..........................................................................................................
210
Compliance with the European Machinery Directive and the UK Supply of
Machinery (Safety) Regulations ...................................................................
211Wiring ..................................................................................................................
211Activation switch ...........................................................................................
211Cable types and lengths ..............................................................................
211Grounding of protective shields ...................................................................
212Single drive (internal power supply) .............................................................
213Multiple drives ..............................................................................................
213Internal power supply ........................................................................
214External power supply ......................................................................
215Operation principle ..............................................................................................
216Start-up including validation test .........................................................................
216Competence .................................................................................................
216Validation test reports ...................................................................................
216Validation test procedure ..............................................................................
218Use ......................................................................................................................
220Maintenance .......................................................................................................
220Competence .................................................................................................
221Fault tracing ........................................................................................................
222Safety data ..........................................................................................................
223Terms and abbreviations ..............................................................................
224TÜV certificate ..............................................................................................
225Declarations of conformity ...........................................................................
15 Common mode, du/dt and sine filters
227Contents of this chapter ......................................................................................
227Common mode filters ..........................................................................................
227du/dtfilters ..........................................................................................................
227When is a du/dtfilter needed? .....................................................................
228du/dtfilter types ............................................................................................
228Description, installation and technical data of the filters ..............................
228Sine filters ...........................................................................................................
228Selecting a sine filter for the drive ................................................................
229Definitions .........................................................................................
229Derating ........................................................................................................
230Description, installation and technical data ..................................................
Further information
12 Table of contents

1
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.
Safety instructions 13

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.
• Be careful when handling a tall module. The module overturns easily because it is
heavy and has a high center of gravity. Whenever possible, secure the module with
chains. Do not leave an unsupported module unattended especially on a sloping
floor.
• 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.
• 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.
• Before you connect voltage to the drive, make sure that all covers are in place. Do
not remove the covers when voltage is connected.
14 Safety instructions
3

• 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/UL 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.
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 15

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.
• 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 all 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. Use a quality voltage tester.
• Before and after measuring the installation, verify the operation of the voltage
tester on a known voltage source.
• Make sure that the voltage between the drive input power terminals (L1, L2, L3)
and the grounding (PE) busbar is zero.
• Make sure that the voltage between the drive output terminals (T1/U, T2/V,
T3/W) and the grounding (PE) busbar is zero.
• Make sure that the voltage between the drive DC terminals (UDC+ and UDC-)
and the grounding (PE) terminal is zero.
Note: If cables are not connected to the drive DC terminals, measuring the
voltage from the DC terminal screws can give incorrect results.
6. Install temporary grounding as required by the local regulations.
7. Ask for a permit to work from the person in control of the electrical installation 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.
16 Safety instructions
3

• 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.
Note:
• When the drive is connected to the input power, the motor cable terminals and the
DC bus are at a dangerous voltage.
After disconnecting the drive from the input power, these remain at a dangerous
voltage until the intermediate circuit capacitors have discharged.
• 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.
Printed circuit boards
WARNING!
Use a grounding wristband 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.
• Always ground the drive, the motor and adjoining equipment. This is necessary for
the personnel safety. Proper grounding also reduces electromagnetic emission and
interference.
• Make sure that the conductivity of the protective earth (PE) conductors is sufficient.
See the electrical planning instructions of the drive. Obey the local regulations.
• Connect the power cable shields to protective earth (PE) terminals of the drive to
make sure of personnel safety.
Safety instructions 17

• Make a 360° grounding of the power and control cable shields at the cable entries
to suppress electromagnetic disturbances.
• In a multiple-drive installation, connect each drive separately to the protective earth
(PE) busbar of the power supply.
Note:
• You can use power cable shields as grounding conductors only when their
conductivity is sufficient.
• As the normal touch current of the drive is higher than 3.5 mA AC or 10 mA DC, you
must use a fixed protective earth (PE) connection. The minimum size of the protective
earth conductor must comply with the local safety regulations for high protective
earth conductor current equipment. See standard IEC/EN 61800-5-1 and the electrical
planning instructions of the drive.
To comply with standard IEC/EN 61800-5-1:
• use a protective earth conductor with a minimum cross-sectional area of 10 mm2
Cu or 16 mm2Al (as an alternative when aluminum cables are permitted),
or
• use a second protective earth conductor of the same cross-sectional area as the
original protective earth conductor,
or
• use a device that automatically disconnects the supply if the protective earth
conductor is damaged.
If the protective earth conductor is separate (that is, it does not form part of the input
power cable or the input power cable enclosure), the minimum cross-sectional area
must be:
• 2.5 mm2when the conductor is mechanically protected,
or
• 4 mm2when the conductor is not mechanically protected.
18 Safety instructions
3

General safety in operation
These instructions are for all personnel that operate the drive.
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
• 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.
• Give a stop command to the drive before you reset a fault. If you have an external
source for the start command and the start is on, the drive will start immediately after
the fault reset, unless you configure the drive for pulse start. See the firmware manual.
• 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/UL 61800-5-1, subclause 6.5.3, for example, "THIS MACHINE
STARTS AUTOMATICALLY".
Note:
• 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 need to
start or stop the drive, use the control panel keys or commands through the I/O
terminals of the drive.
• If the drive is in remote control mode, you cannot stop or start the drive with the
control panel.
Additional instructions for permanent magnet motor drives
￭Safety in installation, start-up, maintenance
These are additional warnings concerning permanent magnet motor drives. The other
safety instructions in this chapter are also valid.
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

• Do not do work on the drive when a rotating permanent magnet motor is connected
to it. A rotating permanent magnet motor energizes the drive including its input and
output power terminals.
Before installation, start-up and maintenance work on the drive:
• Stop the drive.
• Disconnect the motor from the drive with a safety switch or by other means.
• If you cannot disconnect the motor, make sure that the motor cannot rotate during
work. Make sure that no other system, like hydraulic crawling drives, can rotate the
motor directly or through any mechanical connection like felt, nip, rope, etc.
•Do the steps in section Electrical safety precautions (page 15).
•Install temporary grounding to the drive output terminals (T1/U, T2/V, T3/W). Connect
the output terminals together as well as to the PE.
During the start-up:
• Make sure that the motor cannot run overspeed, for example, driven by the load.
Motor overspeed causes overvoltage that can damage or destroy the capacitors in
the intermediate circuit of the drive.
￭Safety in operation
WARNING!
Make sure that the motor cannot run overspeed, for example, driven by the load.
Motor overspeed causes overvoltage that can damage or destroy the capacitors
in the intermediate circuit of the drive.
20 Safety instructions
3