Vacon 20 X ac drives Users Manual
vacon®20 x
ac drives
installation, Technical and Maintenance
manual
vacon • 0
INDEX
Document code (Original Instructions): DPD00992E
Order code: DOC-INS06663+DLUK
Rev. E
Revision release date: 19.6.14
1. Safety ............................................................................................................... 2
1.1 Signs ................................................................................................................................... 2
1.2 Units ................................................................................................................................... 2
1.3 Danger ................................................................................................................................ 3
1.4 Warnings ............................................................................................................................ 4
1.5 Earthing and earth fault protection ................................................................................... 5
1.6 Insulation system ............................................................................................................... 7
1.7 Compatibility with RCDs..................................................................................................... 8
1.8 Extended temperature range............................................................................................. 9
1.9 Declaration of conformity ................................................................................................ 10
2. Receipt of delivery.......................................................................................... 14
2.1 Type designation code...................................................................................................... 15
2.2 Unpacking and lifting the AC drive .................................................................................. 16
2.3 Accessories ...................................................................................................................... 16
2.3.1 ‘Product modified’ sticker................................................................................................ 17
2.3.2 Disposal............................................................................................................................ 17
3. Mounting......................................................................................................... 18
3.1 Dimensions....................................................................................................................... 18
3.1.1 Frame MU2 and MU3 ....................................................................................................... 18
3.2 Cooling.............................................................................................................................. 20
4. Power cabling................................................................................................. 22
4.1 Circuit breaker ................................................................................................................. 24
4.2 UL standards on cabling .................................................................................................. 24
4.3 Description of the terminals ............................................................................................ 25
4.4 Cable dimensioning and selection................................................................................... 27
4.5 Brake resistor cables....................................................................................................... 29
4.6 Control cables .................................................................................................................. 29
4.7 Cable installation ............................................................................................................. 30
4.8 Wiring way ........................................................................................................................ 36
5. Control unit .................................................................................................... 38
5.1 Opening the drives ...........................................................................................................38
5.2 Control units MU2 and MU3............................................................................................. 39
5.3 Control unit cabling.......................................................................................................... 41
5.3.1 Control cable sizing.......................................................................................................... 41
5.3.2 Standard I/O terminals.....................................................................................................42
5.3.3 Relay terminals ................................................................................................................ 43
5.3.4 Safe Torque off (STO) terminals ...................................................................................... 43
5.3.5 Description of additional echo connectors ...................................................................... 44
5.3.6 Led handling..................................................................................................................... 46
5.3.7 Selection of terminal functions with dip switches........................................................... 47
5.4 Fieldbus connection ......................................................................................................... 48
5.4.1 Modbus RTU protocol....................................................................................................... 49
5.4.2 Preparation for use through RS485................................................................................. 50
6. Commissioning ............................................................................................... 52
6.1 Commissioning of the drive ............................................................................................. 53
6.2 Changing EMC protection class....................................................................................... 54
Service support: find your nearest Vacon service center at www.vacon.com
vacon • 1
6.2.1 Changing EMC protection class - MU2............................................................................ 54
6.2.2 Changing EMC protection class - MU3............................................................................ 56
6.3 Running the motor ........................................................................................................... 57
6.3.1 Cable and motor insulation checks ................................................................................. 57
6.4 Maintenance ..................................................................................................................... 58
7. Technical data ................................................................................................ 60
7.1 AC drive power ratings..................................................................................................... 60
7.1.1 Mains voltage 3AC 208-240 V........................................................................................... 60
7.1.2 Mains voltage 3AC 380-480V............................................................................................ 61
7.1.3 Definitions of overloadability ........................................................................................... 61
7.2 Brake resistor ratings...................................................................................................... 62
7.3 VACON® 20 X - technical data......................................................................................... 63
7.3.1 Technical information on control connections ................................................................ 66
8. Options ........................................................................................................... 68
8.1 Vacon keypad with seven-segment display ..................................................................... 68
8.1.1 Mounting onto the drive ................................................................................................... 68
8.1.2 Text Keypad - buttons ......................................................................................................71
8.2 Text keypad....................................................................................................................... 72
8.3 Menu structure................................................................................................................. 72
8.4 Using the keypad.............................................................................................................. 73
8.4.1 Main menu........................................................................................................................ 73
8.4.2 Resetting fault.................................................................................................................. 74
8.4.3 Local/Remote control button........................................................................................... 74
8.4.4 Reference menu............................................................................................................... 75
8.4.5 Monitoring menu .............................................................................................................. 76
8.4.6 Parameter menu .............................................................................................................. 77
8.4.7 System/Fault menu..........................................................................................................78
8.4.8 Fault tracing ..................................................................................................................... 80
8.5 Option boards ................................................................................................................... 83
8.5.1 Option board installation..................................................................................................84
8.6 Mains switch..................................................................................................................... 88
8.6.1 Installation........................................................................................................................ 89
8.7 Simple operator panel ..................................................................................................... 92
8.7.1 Installation........................................................................................................................ 93
9. Safe Torque Off............................................................................................... 98
9.1 General description..........................................................................................................98
9.2 Warnings .......................................................................................................................... 98
9.3 Standards ......................................................................................................................... 99
9.4 The principle of STO ....................................................................................................... 100
9.4.1 Technical details ............................................................................................................ 101
9.5 Connections.................................................................................................................... 102
9.5.1 Safety Capability Cat.4 / PL e / SIL 3.............................................................................. 103
9.5.2 Safety Capability Cat. 3 / PL e / SIL 3............................................................................. 105
9.5.3 Safety Capability Cat. 2 / PL d / SIL 2............................................................................. 105
9.5.4 Safety Capability Cat.1 / PL c / SIL 1.............................................................................. 106
9.6 Commissioning............................................................................................................... 107
9.6.1 General wiring instructions ........................................................................................... 107
9.6.2 Checklist for commissioning ......................................................................................... 107
9.7 Parameters and fault tracing......................................................................................... 108
9.8 Maintenance and diagnostics ........................................................................................ 109
Safety vacon • 2
1. SAFETY
This manual contains clearly marked warning information which is intended for your personal
safety and to avoid any unintentional damage to the product or connected appliances.
Please read the warning information carefully.
VACON
motors. The product is intended to be installed in a restricted access location and for a general purpose use.
Only Vacon authorized, trained and qualified personnel are allowed to install, operate and
maintain the drive.
1.1 Signs
The cautions and warnings are marked as follows:
®
20 X is a drive designed to control asynchronous AC motors and permanent magnet
= DANGEROUS VOLTAGE!
= HOT SURFACE!
= WARNING or CAUTION
Table 1. Warning signs.
1.2 Units
The dimensions used in this manual conform to International Metric System units, otherwise
known as SI (Système International d’Unités) units. For the purpose of the equipment's UL certification, some of these dimensions are accompanied by their imperial equivalents.
Physical
dimension
length 1 mm 0.0394 inch 25.4 inch
Weight 1 kg 2.205 lb 0.4536 pound
Speed
Temperature 1 °C (T1) 33.8 °F (T2) T2 = T1 x 9/5 + 32 Fahrenheit
Torque 1 Nm 8.851 lbf in 0.113
Power 1 kW 1.341 HP 0.7457 horsepower
SI value US value Conversion factor US designation
1 min
-1
1 rpm 1
revolution per
minute
pound-force
inches
Table 2. Unit conversion table.
Service support: find your nearest Vacon service center at www.vacon.com
1
vacon • 3 Safety
1.3 Danger
The components of the power unit of VACON® 20 X drives are live when the drive
is connected to the mains potential. Coming into contact with this voltage is
extremely dangerous and may cause death or severe injury.
®
The motor terminals (U, V, W) are live when VACON
the mains, even if the motor is not running.
After disconnecting the AC drive from the mains, wait until the indicators on the
keypad go out (if no keypad is attached, see the indicators on the cover). Wait an
additional 30 seconds before starting any work on the connections of VACON
X Drive. After expiration of this time, use measuring equipment to absolutely
ensure that no
ing any electrical work!
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage
present even when VACON
During a coast stop (see the Application Manual), the motor is still generating
voltage to the drive. Therefore, do not touch the components of the AC drive
before the motor has completely stopped. Wait until the indicators on the keypad
go out (if no keypad is attached, see the indicators on the cover). Wait an additional 30 seconds before starting any work on the drive.
voltage is present.
Always ensure absence of voltage before start-
®
20 X Drive is disconnected from the mains.
20 X Drive is connected to
®
20
1
Safety vacon • 4
1.4 Warnings
VACON® 20 X AC drive is meant for fixed installations only.
Only DVC A circuits (Decisive Voltage Class A, according to IEC 61800-5-1) are
allowed to be connected to the control unit. This advice aims to protect both the
drive and the client-application. Vacon is not responsible for direct or consequential damages resulting from unsafe connections of external circuits to the drive.
See paragraph 1.6 for more details.
Do not perform any measurements when the AC drive is connected to the mains.
The touch current of VACON
dard EN61800-5-1, a reinforced protective ground connection must be ensured.
See paragraph 1.5.
If the AC drive is used as a part of a machine, the machine manufacturer is
responsible for providing the machine with a supply disconnecting device (EN
60204-1). See paragraph 4.1
Only spare parts supplied by Vacon can be used.
At power-up, power brake or fault reset, the motor will start immediately if the
start signal is active, unless the pulse control for
Furthermore, the I/O functionalities (including start inputs) may change if parameters, applications or software are changed. Disconnect, therefore, the motor if
an unexpected start can cause danger. This is valid only if STO inputs are energized. For prevention on unexpected restart, use appropriate safety relay connected to the STO inputs.
The motor starts automatically after automatic fault reset if the autoreset function is activated. See the Application Manual for more detailed information.
This is valid only if STO inputs are energized. For prevention on unexpected
restart, use appropriate safety relay connected to the STO inputs.
Before performing any measurement on the motor or the motor cable, disconnect the motor cable from the AC drive.
®
20 X drives exceeds 3.5mA AC. According to stan-
Start/Stop logic has been selected
.
Do not perform any voltage withstand test on any part of VACON
shall be performed according to a specific procedure. Ignoring this procedure
may damage the product.
Do not touch the components on the circuit boards. Static voltage discharge may
damage the components.
Check that the EMC level of the AC drive corresponds to the requirements of your
supply network.
In a domestic environment, this product may cause radio interference, in which
case supplementary mitigation measures may be required.
Service support: find your nearest Vacon service center at www.vacon.com
®
20 X. The tests
1
vacon • 5 Safety
1.5 Earthing and earth fault protection
CAUTION!
The VACON® 20 X AC drive must always be earthed with an earthing conductor connected to
the earthing terminal marked with .
Since the touch current exceeds 3.5 mA AC, according to EN61800-5-1, the drive shall have a
fixed connection and provision of an additional terminal for a second protective earthing conductor of the same cross-sectional area as the original protective earthing conductor.
Three screws are provided for: the ORIGINAL protective earthing conductor, the SECOND protective conductor and the MOTOR protective conductor (the customer can choose the screw for
each one). See Figure 1 for the location of the three screws in the two possible options available.
1
Figure 1. Protective earthing connections.
Safety vacon • 6
In VACON® 20 X, the phase conductor and the corresponding protective earthing conductor can
be of the same cross-sectional area, provided they are made of the same metal (because the
cross-sectional area of the phase conductor is less than 16 mm
The cross-sectional area of every protective earthing conductor which does not form a part of
the supply cable or cable enclosure shall, in any case, be not less than:
•2.5 mm
•4 mm
sions shall be made so that the protective earthing conductor in the cord shall, in the
case of failure of the strain-relief mechanism, be the last conductor to be interrupted.
However, always follow the local regulations for the minimum size of the protective earthing
conductor.
NOTE: Due to the high capacitive currents present in the AC drive, fault current protective
switches may not function properly.
2
if mechanical protection is provided or
2
if mechanical protection is not provided. For cord-connected equipment, provi-
2
).
Service support: find your nearest Vacon service center at www.vacon.com
1
vacon • 7 Safety
POWER UNIT
L1
L2
L3
U
V
W
R01 __
R02 __
DC-
(*)
DC+/R+ R-
10Vref __
Analog Inputs __
Digital Inputs__
Analog Output __
24V __
RS485 __
STO __
Keypad
CONTROL UNIT
Reinforced
Mains
DVC A
DVC A or Mains
(**)
1.6 Insulation system
Please, consider carefully the insulation system depicted in Figure 2, before connecting any circuit to the unit.
®
The control unit of VACON
dard IEC 61800-5-1 regarding DVC A circuits and also the strongest insulation
requirements of IEC 60950-1 regarding SELV circuits.
20 X fulfils the insulation requirements of the stan-
A distinction has to be made for the following three groups of terminals, according to the insulation system of VACON
®
20 X:
• Mains and motor connections (L1, L2, L3, U, V, W)
• Relays (R01, R02)
(**)
• Control terminals (I/Os, RS485, STO)
The Control terminals (I/Os, RS485, STO) are isolated from the Mains (the insulation is reinforced, according to IEC 61800-5-1) and the GND terminals are referred to PE.
This is important when you need to connect other circuits to the drive and test the complete
assembly. Should you have any doubts or questions, please contact your local Vacon distributor.
1
(**)
The relays may be used also with DVC A circuits. This is possible only if both
relays are used for DVC A circuitry: to mix Mains and DVC A is not allowed.
Figure 2. Insulation system(* only for MU3).
Safety vacon • 8
By performing the cabling, a suitable clearance has to be guaranteed between
DVC A circuits and Mains (reinforced insulation is required, according to IEC
61800-5-1).
1.7 Compatibility with RCDs
This product can cause a d.c. current in the protective earthing conductor. Where
a residual current-operated protective (RCD) or monitoring (RCM) device is used
for protection in case of direct or indirect contact, only an RCD or RCM of Type B
is allowed on the supply side of this product.
Service support: find your nearest Vacon service center at www.vacon.com
1
vacon • 9 Safety
Ambient temperature (°C)
Percent rated output current (% I
N
)
10 20 30 40 50
100
75
50
25
0-10
150
60
Temperature - Output Current Derating Curve
1.8 Extended temperature range
VACON® 20 X has an integrated cooling system, independent from the motor fan. Under maximum operating conditions, the ambient temperature cannot exceed 40 °C. See Table 24 for
the output rated current. Higher temperatures are allowed only with derating of the output
current. With derating the unit can operate up to 50°C.
Figure 3.Temperature-output current derating curve.
The AC drive is cooled down by air-ventilation. Therefore, make sure that enough free space is
left around the AC drive to ensure sufficient air circulation (see for more details the mounting
instructions on chapter 3).
NOTE: Up to 1.5 kW (Voltage range 380-480V) and 1.1 kW (Voltage range 208-240V) the drive is
not equipped with external cooling fan.
1
Safety vacon • 10
1.9 Declaration of conformity
Figure 4. Declaration of conformity.
Service support: find your nearest Vacon service center at www.vacon.com
1
vacon • 11 Safety
1
Figure 5. STO certificate.
Safety vacon • 12
NOTE! You can download the English and French product manuals with applicable safety,
warning and caution information from www.vacon.com/downloads.
REMARQUE Vous pouvez télécharger les versions anglaise et française des manuels produit
contenant l’ensemble des informations de sécurité, avertissements et mises en garde applicables sur le site www.vacon.com/downloads.
Service support: find your nearest Vacon service center at www.vacon.com
1
vacon • 13 Safety
1
Receipt of delivery vacon • 14
Marks:
3234500378
Cust. Ord. No:
Application:
FW0065V008
Firmware:
EMC level:
380-480 V
IP66/ 4X
6 A
Rated current:
122245
B.ID:
M100112345
S/N:
70SCO000293-BM1X
Code:
VACON0020-3L-0006-4-X
Type:
AC DRIVE
Rated voltage:
Protection:
C2
Vacon type code
Rated
current
Supply
voltage
Application
code
IP class
EMC level
Serial number
CUSTOMER NAME
Customer’s
order number
Batch ID
2. RECEIPT OF DELIVERY
Check correctness of delivery by comparing your order data to the drive information found on
the package label. If the delivery does not correspond to your order, contact your supplier immediately. See paragraph 2.3.
Figure 6. Vacon package label.
Service support: find your nearest Vacon service center at www.vacon.com
2
vacon • 15 Receipt of delivery
+xxxx +yyyy
Additional codes.
Examples of additional codes:
+HMTX
Text keypad IP66
+QDSS
Integrated disconnect switch
2.1 Type designation code
VACON® type designation code is formed of a nine-segment code and optional +codes. Each
segment of the type designation code uniquely corresponds to the product and options you
have ordered. The format of the code is as follows:
VACON0020-3L-0009-4-X +xxxx +yyyy
2
Receipt of delivery vacon • 16
2.2 Unpacking and lifting the AC drive
The weights of the AC drives vary according to frame size. Note the weights of each individual
frame size in Table 3 below.
Weight
Frame
[kg] [lb]
MU2 3.4 7.5
MU3 6.0 13.2
Table 3. Frame weights.
VACON® 20 X drives have undergone scrupulous tests and quality checks at the factory before
they are delivered to the customer. However, after unpacking the product, check that no signs
of transport damage are to be found on the product and that the delivery is complete.
Should the drive have been damaged during shipping, please contact the cargo insurance company or the carrier in the first instance.
2.3 Accessories
After lifting the converter out, check that the delivery is complete and the following accessories
ar included:
Item Quantity Purpose
STO terminal connector 1
M3.5 x 8 TapTite screw 4 Screws for control cable clamps
M1-3 Cable clamp 2 Clamping control cables
‘Product modified’ sticker 1 Information about modifications
HMI cap
*. Provided only if the drive is delivered with the keypad mounted.
*
Table 4. Content of accessory bag.
1
Six pin black connector (see
Figure 7) to use STO function
Closing cap for the HMI connector
Figure 7. STO connector.
Service support: find your nearest Vacon service center at www.vacon.com
2
vacon • 17 Receipt of delivery
Product modified
Date:
Date:
Date:
13064.emf
2.3.1 ‘Product modified’ sticker
In the small plastic bag included in the delivery, you will find a silver
Product modified sticker.
The purpose of the sticker is to notify the service staff about the modifications made in the AC
drive. Attach the sticker on the side of the AC drive to avoid losing it. Should the AC drive be
later modified, mark the change on the sticker.
Figure 8. ‘Product modified’ sticker.
2.3.2 Disposal
When the device reaches the end of its operating life do not
dispose of it as a part of standard household garbage. Main
components of the product can be recycled, but some need to
be fragmented to separate different types of materials and
components that need to be treated as special waste from
electrical and electronic components. To ensure
environmentally sound and safe recycling treatment, the
product can be taken to appropriate recycling center or
returned to the manufacturer.
Observe local and other applicable laws as they may mandate
special treatment for specific components or special
treatment may be ecologically sensible.
2
Mounting vacon • 18
3. MOUNTING
The AC drive has to be mounted on the wall or on the back plane of a cubicle. Ensure that the
mounting plane is relatively even. Both frame sizes can be mounted in any position. The drive
shall be fixed with four screws (or bolts, depending on the unit size).
3.1 Dimensions
3.1.1 Frame MU2 and MU3
Figure 9. VACON® 20 X, MU2.
Dimensions W x H x D
Frame
[mm] [in]
MU2 169.2 x 294.7 x153.8 6.66 x 11.60 x 6.06
MU2 +HMTX 169.2 x 294.7 x175.7 6.66 x 11.60 x 6.92
MU2 +QDSS 169.2 x 294.7 x176 6.66 x 11.60 x 6.93
Service support: find your nearest Vacon service center at www.vacon.com
3
vacon • 19 Mounting
Figure 10. VACON® 20 X, MU3.
Dimensions W x H x D
Frame
[mm] [in]
MU3 205.2 x 375.2 x 180.5 8.08 x 14.77 x 7.11
MU3 +HMTX 205.2 x 375.2 x 202.1 8.08 x 14.77 x 7.96
MU3 +QDSS 205.2 x 375.2 x 200.0 8.08 x 14.77 x 7.87
The drive can be mounted in vertical or horizontal position on the wall or any other relatively
even mounting plane or machine frame and fixed with the screws recommended in Table 5.
Recommended screw or bolt size for MU2 and MU3 is M5.
Frame Screw number Screw size
MU2 4 M5
MU3 4 M5
Table 5. Screws for wall mounting.
3
Mounting vacon • 20
AA A
B
C
3.2 Cooling
The AC drive produces heat in operation and is cooled down by air circulated by a fan. Enough
free space shall be left around the AC drive to ensure sufficient air circulation and cooling. Different acts of maintenance may also require certain amount of free space.
The minimum clearances given in Table 6 should be respected. It is also important to ensure
that the temperature of the cooling air does not exceed the maximum environment temperature of the converter.
Contact our factory for more information on required clearances in different installations.
Min clearance [mm]
Type A B C
MU2 153060
MU3 153080
Table 6. Min. clearances around AC
drive.
A = Clearance left and right from the drive
B = Clearance above the drive
C = Clearance underneath the AC drive
Figure 11. Installation space.
Type Cooling air required [m3/h]
MU2 50
MU3 110
Table 7. Required cooling air.
Note that if several units are mounted above each other the required free space equals B+C
(see the Figure 12.). Moreover, the outlet air used for cooling by lower unit must be directed
away from the air intake of the upper unit by means of e.g. a piece of metal plate fixed to the
wall between the drives as shown in Figure 12..
Service support: find your nearest Vacon service center at www.vacon.com
3
vacon • 21 Mounting
B+C
Air deflector
Figure 12. Installation space when drives are mounted on top of each other.
3
Power cabling vacon • 22
U/T1
V/T2
W/T3
M
L1
L2
L3
DC+
R-
DC-
(*)
Keypad
Control
Power unit
4. POWER CABLING
The mains cables are connected to terminals L1, L2 and L3 and the motor cables to terminals
marked with U, V and W. See principal connection diagram in Figure 13. See also Table for the
cable recommendations for different EMC levels.
Figure 13. Principal connection diagram(* only MU3).
Use cables with heat resistance in accordance with the application requirements. The cables
and the fuses must be dimensioned according to the AC drive nominal OUTPUT current which
you can find on the rating plate.
Service support: find your nearest Vacon service center at www.vacon.com
4
vacon • 23 Power cabling
Shield
PE conduc tors
Shield
PE conductor
EMC levels
1st environment 2nd environment
Cable type
Category C2 Category C3 Category C4
Mains cable 1 1 1
Motor cable 3* 2 2
Control cable 4 4 4
Table 8: Cable types required to meet standards.
1 = Power cable intended for fixed installation and the specific mains voltage. Shielded
cable not required. (MCMK or similar recommended).
2 = Symmetrical power cable equipped with concentric protection wire and intended for the
specific mains voltage. (MCMK or similar recommended). See Figure 14.
3 = Symmetrical power cable equipped with compact low-impedance shield and intended
for the specific mains voltage. [MCCMK, EMCMK or similar recommended; Recommended cable transfer impedance (1...30MHz) max. 100mohm/m]. See Figure 14.
*360º earthing of the shield with cable glands in motor end needed for EMC category
C2.
4 = Screened cable equipped with compact low-impedance shield (JAMAK, SAB/ÖZCuY-O
or similar).
Figure 14.
NOTE: The EMC requirements are fulfilled at factory defaults of switching frequencies (all
frames).
NOTE: If safety switch is connected the EMC protection shall be continuous over the whole cable installation.
4
Power cabling vacon • 24
4.1 Circuit breaker
Please, disconnect the drive via an external circuit breaker. You have to provide a switching device between supply and main connection terminals.
When connecting the input terminals to the power supply using a circuit breaker, observe that
this is of type B or type C and ensure it has a capacity of 1.5 to 2 times of the inverter’s rated
current (see Table 24 and Table 25).
NOTE: circuit breaker is not allowed in installations where C-UL is required. Only fuses are
recommended.
4.2 UL standards on cabling
To meet the UL (Underwriters Laboratories) regulations, use a UL-approved copper cable with
a minimum heat-resistance of +70/75°C. Use Class 1 wire only.
The units are suitable for use on a circuit capable of delivering no more than 50,000 rms symmetrical amperes, 600V AC maximum, when protected by T or J class fuses.
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection must be provided in accordance with the
National Electrical Code and any additional local codes.
Service support: find your nearest Vacon service center at www.vacon.com
4
vacon • 25 Power cabling
PES
3AC
Motor
AC power supply
Single or
Three phases
PE
4.3 Description of the terminals
The following pictures describe the power terminals and the typical connections in Vacon® 20X
drives.
4
Figure 15. Power connections, MU2.
Power cabling vacon • 26
PES
PE
AC power supply
Single or
Three phases
3AC
Motor
Service support: find your nearest Vacon service center at www.vacon.com
Figure 16. Power connections, MU3.
Termin al Description
L1
L2
L3
U/T1
V/T2
W/T3
These terminals are the input connections for the power
supply. Single-phase 230 VAC models connect to L1 and
L2 terminals.
These terminals are for motor connections.
Table 9. Description of Vacon 20X power terminals.
4
vacon • 27 Power cabling
4.4 Cable dimensioning and selection
Table 10 shows the minimum dimensions of the Cu cables and the corresponding fuse sizes.
These instructions apply only to cases with one motor and one cable connection from the AC
drive to the motor. In any other case, ask the factory for more information.
4.4.0.1 Cable and fuse sizes, frames MU2 and MU3
The recommended fuse types are gG/gL (IEC 60269-1) or class T (UL & CSA). The fuse voltage
rating should be selected according to the supply network. The final selection should be made
according to local regulations, cable installation conditions and cable specifications. Bigger
fuses than those recommended below shall not be used.
Check that the fuse operating time is less than 0.4 seconds. Operating time depends on used
fuse type and impedance of the supply circuit. Consult the factory about faster fuses. Vacon
also recommends for high speed J (UL & CSA), aR (UL recognized, IEC 60269-4) and gS (IEC
60269-4) fuse ranges.
Terminal cable size
Frame Type
I
INPUT
[A]
Fuse
(gG/gL)
[A]
Mains and
motor cable
Cu [mm
2
]
Main
terminal
2
[mm
]
Earth terminal
0004 2
0003 4 - 0004 4
MU2
MU3
The cable dimensioning is based on the criteria of the International Standard IEC60364-5-52: Cables
must be PVC-isolated; use only cables with concentric copper shield; Max number of parallel cables is 9.
When using cables in parallel,
and the max number of cables must be observed.
For important information on the requirements of the earthing conductor, see chapter Earthing and
earth fault protection of the standard.
0005 2 - 0007 2
0005 4 - 0006 4
0008 4 9.6 10 3*2.5+2.5 0.2 — 2.5 M4 ring terminal
0011 2
0009 4
0012 2
0012 4
0017 2
0016 4
4.3
3.2 - 4.0
6.8 - 8.4
5.6 - 7.3
13.4
11.5
14.2
14.9
20.6
20.0
Table 10. Cable and fuse sizes for VACON® 20 X.
6 3*1.5+1.5 0.2 — 2.5 M4 ring terminal
10 3*1.5+1.5 0.2 — 2.5 M4 ring terminal
16 3*2.5+2.5 0.5 — 16.0 M5 ring terminal
20 3*2.5+2.5 0.5 — 16.0 M5 ring terminal
25 3*6+6 0.5 — 16.0 M5 ring terminal
NOTE HOWEVER that the requirements of both the cross-sectional area
4
For the correction factors for each temperature, see International Standard IEC60364-5-52.
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