Lenze I55APA Series User manual

Operating instructions i550 protec frequency inverter | 1
© 11/2021 · EN · www.Lenze.com
Contents
i550 protec frequency inverter
0.37 ... 75 kW
Operating instructions
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Operating instructions i550 protec frequency inverter | 2
© 11/2021 · EN · www.Lenze.com
General information
Identication
Information
Overview
Hardware overview of the inverter
Network status LEDs Inverter status LEDs
Operating module (Keypad)
or WLAN module
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Extension box Conventions
X16
X2xx
X2xx
X109
X9
X20
X1
X3
X100 X105
Control terminals
EtherCAT, PROFINET,
EtherNet/IP, Modbus TCP
CANopen, Modbus RTU,
IO-Link
Memory module
Network, Option
PTC input
Relay output
Diagnostic interface
Shield connection Safety module
Power supply Motor connection
DIP switch
Standard I/O
Cable glands
Brake resistor
connection
DC bus
Rotary encoder switch
Control cable
Network, Option
PE connection
Slot
with shield connection for motor cable

Operating instructions i550 protec frequency inverter | 3
© 11/2021 · EN · www.Lenze.com
Please read this documentation carefully before installing the inverter and observe the safety
instructions!
This document only includes the most frequently asked questions and presents them in a
simplied form for a better overview. Detailed technical and functional explanations can be
found in the comprehensive product documentation. The complete documentation, further
information and tools regarding Lenze products can be found on the Internet:
www.Lenze.com
Application as directed
• The product is a piece of professional equipment intended for use by trades, specic
professions or industry, and not for sale to the general public. IEC60050 [IEV161-05-05]
• To prevent personal injury and damage to property, higher-level safety and protection
systems must be used!
• All transport locks must be removed.
• The product may only be operated under the specied operating conditions and in the
specied mounting positions.
• The product is only suitable for installation in control cabinets and, depending on the
protection class, for wall mounting.
• The product must only be actuated with motors that are suitable for the operation with
inverters.
• The product must not be operated in private areas, in potentially explosive atmospheres
and in areas with harmful gases, oils, acids and radiation.
Device-specic standards and directives
• The product meets the protection requirements of the Low-Voltage Directive 2014/35/EU.
• The harmonized standard ENIEC61800-5-1 is used for the inverters. (Europe).
• UL 61800-5-1 and CAN/CSA C22.2 No.274 are the North American electrical safety
standards.
Relevant standards and directives for the operator
• If the product is used in accordance with the technical data, the drive systems comply with
the EN IEC 61800-3 categories (Category C2 is similar to FCC Class A).
• The test voltage for insulation resistance tests between a control potential of 24V and PE
must be measured in accordance with ENIEC61800-5-1.
• The cables must be installed in accordance with EN IEC 60204-1 or US National Electrical
Code NFPA 70/Canadian Electrical Code C22.1.
Commissioning
• Commissioning or starting the operation as directed of a machine with the product
is prohibited until it has been ensured that the machine meets the regulations of the
Machinery Directive 2006/42/EG and the standard ENIEC60204-1.
• Commissioning or starting the operation as directed is only permissible if the EMC Directive
2014/30/EU is complied with.
• In residential areas, the product may cause EMC interference. The operator is responsible
for executing the interference suppression measures.
Licence information PROFINET
The PROFINET rmware is optional. The PROFINET rmware uses the following open source
software packages under a modied GPL license: eCos Operating System. These components
are used at the operating system level of the rmware. The protocol stack does not use
source code under a GPL license.
View license: http://ecos.sourceware.org/license-overview.html
General information
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Identication
Information
Overview Extension box Conventions

Operating instructions i550 protec frequency inverter | 4
© 11/2021 · EN · www.Lenze.com
Identication of the products
General information
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Identication
Information
Overview Extension box Conventions
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Rated power
[kW]
137 0.37
155 0.55
175 0.75
211 1.1
215 1.5
222 2.2
230 3
240 4
255 5.5
275 7.5
311 11
315 15
318 18.5
322 22
330 30
337 37
345 45
355 55
375 75
2
Mains voltage and connection type
A1/N/PE AC 120 V
B1/N/PE AC 230/240 V
C3/PE AC 230/240 V
D1/N/PE AC 230/240 V
3/PE AC 230/240 V
F3/PE AC 400 V
3/PE AC 480 V
G3/PE AC 480 V
3/PE AC 600 V
3
Product variant
0Standard device
1Empty extension box
2Extension box und repair switch
4
Integrated functional safety
0Without safety function
ABasic Safety - STO
5
Degree of protection
3IP31, uncoated / NEMA 1
7IP66, uncoated / NEMA 4X
8IP55, uncoated / NEMA 12
6
Interference suppression
0Without
1Integrated RFI lter
7
Application area
0Default parameter setting: Region EU (50-
Hz networks)
1Default parameter setting: Region US (60-
Hz networks)
8
Product extension
0Standard I/O
KKeypad with Standard-I/O
WWLAN module with Standard I/O
9
Network
00S Without
02S CANopen
03S Modbus RTU
065 IO-Link
0KS EtherCAT
0LS PROFINET
0MS EtherNet/IP
0WS Modbus TCP
5 5 A P137 FI 0 A 7 0 0 00SK
12345678 9

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© 11/2021 · EN · www.Lenze.com
General information
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Extension box
The i550 protec frequency inverter 0.37...22 kW can be ordered with an IP66 housing
(extension box) enlarged at the bottom. This extension box can be purchased empty or with
an integrated repair switch. It oers additional space or holes for cable entries.
Additional solution options for the extension box in the “empty” model:
• Integration of terminals for looping through the mains voltage
• Integration of control elements
• Integration of a brake rectier for controlling a 180 V / 205 V DC holding brake
Identication
Information
Overview Extension box Conventions
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Operating instructions i550 protec frequency inverter | 6
© 11/2021 · EN · www.Lenze.com
Numeric notation
As a rule, a period is used as a decimal separator in this documentation.
Example: 1234.56
Design of safety instructions
Safety instructions protect against injury to persons or damage to property. The measures
described for the prevention of hazards must be complied with.
DANGER!
Indicates an extremely hazardous situation. If this instruction is ignored, serious, irreversible
injury or deadly injuries may result.
WARNING!
Indicates an extremely hazardous situation. If this instruction is ignored, serious, irreversible
injury or deadly injuries may result.
CAUTION!
Indicates an extremely hazardous situation. If this instruction is ignored, serious, irreversible
injury or deadly injuries may result.
NOTE
Indicates a material hazard. If this instruction is ignored, damage to property may result.
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General information
Identication
Information
Overview Extension box Conventions
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Operating instructions i550 protec frequency inverter | 7
© 11/2021 · EN · www.Lenze.com
Safety instructions
WARNING!
Functional safety
Certain variants of the product support safety functions (e.g. “Safe torque o (STO)”) in
accordance with the requirements of 2006/42/EC: Machinery Directive [UKCA: S.I. 2008/1597 -
The Supply of Machinery (Safety) Regulations 2008]. Be sure to observe the instructions in the
documentation regarding the integrated safety technology.
NOTE
Device protection
Carry out insulation resistance tests between 24-V control potential terminals and PE. The
maximum test voltage must not exceed 110VDC.
NOTE
Foreseeable misuse
Inverters are not to be operated with DC motors.
Basic safety instructions
DANGER!
Disregarding the following basic safety instructions and safety information may lead to severe
personal injury and damage to property!
• Only use the product as directed.
• Never commission the product in the event of visible damage.
• Never modify the product technically.
• Never commission the product before assembly has been completed.
• Never operate the product without the required covers.
• Connect/disconnect all pluggable connections only in deenergized condition!
• Only remove the product from the installation in the deenergized state.
• The product can - depending on their degree of protection - have live, movable or rotating
parts during or after operation. Surfaces can be hot. Surfaces can be hot.
• Observe all specications of the corresponding documentation supplied. This is the
condition for safe and trouble-free operation and the achievement of the specied product
features.
• The procedural notes and circuit details given in the associated documentation are
suggestions and their transferability to the respective application must be checked. The
manufacturer of the product does not take responsibility for the suitability of the process
and circuit proposals.
• All work with and on the product may only be carried out by qualied personnel. IEC 60364
and CENELEC HD 384 dene the qualications of these persons:
- They are familiar with installing, mounting, commissioning, and operating the product.
- They have the corresponding qualications for their work.
- They know and can apply all regulations for the prevention of accidents, directives, and
laws applicable at the place of use.
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Basic
safety intructions Residual hazards

Operating instructions i550 protec frequency inverter | 8
© 11/2021 · EN · www.Lenze.com
Product
Observe the warning signs on the product!
Dangerous electrical voltage
Before working on the product, check whether all power connections are
deenergized!
After mains disconnection, the power terminals carry the hazardous
electrical voltage for the time specied next to the symbol!
Electrostatic sensitive devices
Before working on the product, the sta must ensure to be free of
electrostatic charge.
High leakage current
Carry out xed installation and PE connection in compliance with the
following standard:
ENIEC61800-5-1/ENIEC60204-1
Hot surface
Use personal protective equipment or wait until the device has cooled
down!
Protection of the machine/system
• Drives can reach dangerous overspeeds, e.g. from setting high output frequencies for
motors and machines which are not suitable. The inverters do not provide any protection
against such operating conditions. Use additional external components for this purpose.
• Only switch the contactor in the motor cable when the inverter is inhibited. Switching them
when the inverter is enabled is only permissible when no monitoring components respond.
Motor
In the event of a short circuit of two power transistors, a residual movement of up to 180°/
number of pole pairs on the motor may occur (e.g. 4-pole motor): Residual movement max.
180 °/2=90°).
Residual hazards
The user must take the residual hazards mentioned into consideration in the risk assessment
for his/her machine/system. If the above is disregarded, this may result in injuries to persons
and material damage!
DANGER!
Dangerous electrical voltage
During operation and up to 20 minutes after power-o, hazardous electrical voltages may be
present at the connections of the product.
The leakage current against earth (PE) is > 3.5 mA AC or > 10 mA DC.
Possible consequences
• Death or serious injury from electric shock
Protective measures
• Any work on the product must only be carried out in a deenergized state.
• Check that no voltage is present!
• After switching o the mains voltage, observe the signs on the product.
• After switching o, wait until the drive is at a standstill.
• Implement the measures required by EN IEC 61800-5-1 or EN IEC 60204-1, i.e. xed
installation and standards-compliant PE connection.
Degree of protection - Protection of persons and device protection
Information applies to the mounted and ready-for-use state.
Motor protection
With some settings of the inverter, the connected motor can be overheated.
• E.g.via the operation of self-ventilated motors at low speeds over a long period.
• E.g. by operating DC-injection braking over a long period.
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Safety instructions
Basic
safety intructions Residual hazards
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Operating instructions i550 protec frequency inverter | 9
© 11/2021 · EN · www.Lenze.com
Technical data
Standards and operating conditions
Approvals for the market
CE (European Union)
Further information and certicates of approval:
https://www.lenze.com/en-de/products/inverters/frequency-inverters/i550-protec-frequency-
inverter/
UKCA (Great Britain)
UL (USA)
CSA (Canada)
CCC (China)
EAC (Belarus, Russia, Kyrgyzstan, Kazakhstan and Armenia)
UkSepro (Ukraine)
Environment RoHS
Energy eciency High Eciency EN IEC 61800-9-2 Class IE2
Degree of protection
EN EN IEC 60529
IP31
IP55
IP66
Data applies for operationally ready mounted state and not in wire range of terminals
NEMA NEMA 250
Type 1
Type 12
Type 4X outdoor
EI UL 50 Type 1
UL 50E Type 4X outdoor
Climate Operation EN 60721-3-3:1995 +A2:1997
3K3 (-30 ... +60 °C)
Operation at a switching frequency of 2 or 4 kHz:
Above +45°C: reduce rated output current by 2.5 %/°C
Operation at a switching frequency of 8, 12 or 16 kHz:
Above +40°C: reduce rated output current by 2.5 %/°C
3C2
3C3 (for IP66) For chemically active substances
3S2
3S3 (for IP66) For mechanically active substances
Power systems TT, TN Voltage to earth: max. 300 V
Mains switching 3 x within one minute possible
Max. motor cable length Device-specic; see technical data in project planning document
Max. output frequency 0 Hz ... 599 Hz
Overload capacity Heavy Duty: 200% for 3s, 150% for 60s
Light Duty 167% for 3 s, 125 % for 60 s (only applies to devices with protection class IP31/NEMA 1)
Further standards and operating conditions can be found in the project planning documents.
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Operating instructions i550 protec frequency inverter | 10
© 11/2021 · EN · www.Lenze.com
Mechanical installation
E2 E1
H1
H
T
B
B1
Dimensions and assembly – Inverters without extension box
NOTE
The specied installation clearances are minimum dimensions to ensure a sucient air
circulation for cooling purposes. They do not take into account the bending radii of the
connecting cables.
Inverter Rated power Weight H W D H1 W1 Screws E1 E2
[kW] [kg] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
1-phase mains connection 120 V devices
I55APxxxA 0.37 1.8 190 140 117 205 115 4x M5 >50 >50
I55APxxxA 0.75 ... 1.1 2.7 205 140 140 220 115 4x M5 >50 >50
1-phase mains connection 230/240 V devices
I55APxxxB 0.37 ... 0.75 1.8 190 140 117 205 115 4x M5 >50 >50
I55APxxxB 1.1 ... 2.2 2.7 205 140 140 220 115 4x M5 >50 >50
1-/3-phase mains connection 230/240 V devices
I55APxxxD 0.37 ... 0.75 1.7 190 140 117 205 115 4x M5 >50 >50
I55APxxxD 1.1 ... 2.2 2.6 205 140 140 220 115 4x M5 >50 >50
I55APxxxC 3 ... 5.5 4.8 250 180 168 267 150 4x M5 >50 >50
I55APxxxC 7.5 ... 11 5 290 180 173 310 150 4x M5 >50 >50
I55APxxxC 15 ... 18.5 9.4 405 230 187 446.5 200 4x M6 >50 >100
I55APxxxC 30 46 778 298 285.5 810 225 4x M8 >100 >130
I55APxxxC 45 53 778 298 377.5 810 225 4x M10 >100 >260
3-phase mains connection 400/480 V devices
I55APxxxF 0.37 ... 0.75 1.8 190 140 117 205 115 4x M5 >50 >50
I55APxxxF 1.1 ... 2.2 2.7 205 140 140 220 115 4x M5 >50 >50
I55APxxxF 3 ... 5.5 4.9 250 180 168 267 150 4x M5 >50 >50
I55APxxxF 7.5 ... 11 5.1 290 180 173 310 150 4x M5 >50 >50
I55APxxxF 15 ... 22 10.2 405 230 187 446.5 200 4x M6 >50 >100
I55APxxxF 30 ... 45 46 778 298 285.5 810 225 4x M8 >100 >130
I55APxxxF 55 ... 75 53 778 298 377.5 810 225 4x M10 >100 >260
3-phase mains connection 600 V devices
I55APxxxG 0.75 1.8 190 140 117 205 115 4x M5 >50 >50
I55APxxxG 1.5 ... 2.2 2.7 205 140 140 220 115 4x M5 >50 >50
I55APxxxG 3 ... 5.5 4.9 250 180 168 267 150 4x M5 >50 >50
I55APxxxG 7.5 ... 11 5.1 290 180 173 310 150 4x M5 >50 >50
I55APxxxG 15 ... 22 10.2 405 230 187 446.5 200 4x M6 >50 >100
With extension boxWithout extension box
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Operating instructions i550 protec frequency inverter | 11
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Dimensions and assembly – Inverters with extension box
NOTE
The specied installation clearances are minimum dimensions to ensure a sucient air
circulation for cooling purposes. They do not take into account the bending radii of the
connecting cables.
Inverter Rated power Weight H W DD 1 H1 H2 W1 Screws E1 E2
[kW] [kg] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
1-phase mains connection 120 V devices
I55APxxxA 0.37 2.3 / 2.5 330 140 117 151 205 337 115 6x M5 >50 >50
I55APxxxA 0.75 ... 1.1 3.3 / 3.5 346 140 140 173 220 352 115 6x M5 >50 >50
1-phase mains connection 230/240 V devices
I55APxxxB 0.37 ... 0.75 2.3 / 2.5 330 140 117 151 205 337 115 6x M5 >50 >50
I55APxxxB 1.1 ... 2.2 3.3 / 3.5 346 140 140 173 220 352 115 6x M5 >50 >50
1-/3-phase mains connection 230/240 V devices
I55APxxxD 0.37 ... 0.75 2.2 / 2.4 330 140 117 151 205 337 115 6x M5 >50 >50
I55APxxxD 1.1 ... 2.2 3.2 / 3.4 346 140 140 173 220 352 115 6x M5 >50 >50
I55APxxxC 3 ... 5.5 5.7 / 5.9 396 180 165 199 267 403 150 6x M5 >50 >50
I55APxxxC 7.5 ... 11 6 / 6.2 471 180 170 203.5 310 479.5 150 6x M5 >50 >50
I55APxxxC 15 ... 18.5 11.4 / 11.9 612 230 184 220 446.5 620 200 6x M6 >50 >100
3-phase mains connection 400/480 V devices
I55APxxxF 0.37 ... 0.75 2.3 / 2.5 330 140 117 151 205 337 115 6x M5 >50 >50
I55APxxxF 1.1 ... 2.2 3.3 / 3.5 346 140 140 173 220 352 115 6x M5 >50 >50
I55APxxxF 3 ... 5.5 5.8 / 6 396 180 165 199 267 403 150 6x M5 >50 >50
I55APxxxF 7.5 ... 11 6.1 / 6.3 471 180 170 203.5 310 479.5 150 6x M5 >50 >50
I55APxxxF 15 ... 22 11.5 / 12 612 230 184 220 446.5 620 200 6x M6 >50 >100
3-phase mains connection 600 V devices
I55APxxxG 0.75 2.3 / 2.5 330 140 117 151 205 337 115 6x M5 >50 >50
I55APxxxG 1.5 ... 2.2 3.3 / 3.5 346 140 140 173 220 352 115 6x M5 >50 >50
I55APxxxG 3 ... 5.5 5.8 / 6 396 180 165 199 267 403 150 6x M5 >50 >50
I55APxxxG 7.5 ... 11 6.1 / 6.3 471 180 170 203.5 310 479.5 150 6x M5 >50 >50
I55APxxxG 15 ... 22 11.5 / 12 612 230 184 220 446.5 620 200 6x M6 >50 >100
Please observe the following:
• The lower weight applies for the i550 protec with empty extension box, and the higher
weight applies for the i550 protec with extension box and repair switch.
• The dimension T1 is only relevant for i550 protec with repair switch.
Mechanical installation
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E2 E1
H1
H
1T
H2
B
B1
T
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With extension boxWithout extension box

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© 11/2021 · EN · www.Lenze.com
Preparation
For wiring, the housing cover must be removed:
1. Loosen the 4 screws in the housing cover using a crosstip screwdriver.
2. Remove housing cover
PH2
1.2 Nm
(
10.6 lbin)
4x
After completing the electrical installation, replace the housing cover using the 4 screws to
maintain the degree of protection.
NOTE
Assembly does not satisfy protection class requirements
Possible consequences: Damage to property due to ingress of humidity and foreign bodies.
• All cable glands and mounting parts must at least correspond to the protection class of the
inverter.
• All openings in the housing must be closed according to the protection class.
• The cover must be screwed on with the specied tightening torque.
• Always use cable glands with long thread.
Electrical installation
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EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 13
© 11/2021 · EN · www.Lenze.com
Cable gland with shield connection
Thanks to its protection class, the inverter can be installed directly on the wall. For connection,
the device has cable glands on the bottom. Suitable mounting sets with screwed connections
are available as accessories (see project planning document).
Rated power kW 0.37 … 2.2 3 … 11 15 … 22 30 ... 75
With pre-drilled holes:
Mains cable M20 / ½" Conduit hub M32 / 1" Conduit hub M40 / 1¼" Conduit hub M63 / 2" Conduit hub
Motor cable M20 / ½" Conduit hub M32 / 1" Conduit hub M40 / 1¼" Conduit hub M63 / 2" Conduit hub
Additional positions with centering aid:
Control cables, network cables, brake
resistor
2x M12
1x M20 / ½" conduit hub
2x M20 / ½" conduit hub *
2x M12
1x M20 / ½" conduit hub
2x M20 / ½" conduit hub *
2x M12
1x M32 / 1" conduit hub
2x M20 / ½" conduit hub *
2x M16
2x M32 / 1" conduit hub
* Only for extension box
When using electrically conductive conduits:
• Individual unshielded conductors or multi-core unshielded cables which have been laid
in a metallic conduit are considered equivalent for the purposes of EMC conformity of a
shielded motor cable.
• Both a rigid and a exible metallic conduit are permissible.
• The conduit must be connected properly at both ends using metallic screwed connections
on the inverter and on the motor so as to connect all devices.
• Non-metallic junctions or screwed connections which interrupt the electrical conductivity of
the metallic conduit are not permissible.
Electrical installation
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M20
M32 ≥ 15 kW
2x M32 ≥ 30 kW
M20
M32 ≥ 3 kW
M40 ≥ 15 kW
M63 ≥ 30 kW
M20
M32 ≥ 3 kW
M40 ≥ 15 kW
M63 ≥ 30 kW
2x M12
2x M16 ≥ 30 kW
EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 14
© 11/2021 · EN · www.Lenze.com
Connection diagram
The connection diagram is considered exemplary for all voltage and power classes.
IO-Link
CANopen
Modbus RTU
EtherCAT
PROFINET
EtherNet/IP
Modbus TCP
X3XXX2XX
Q1
F1
…
F3
L1
L2/N
L3
X100
PE
N
L3
L2
L1 3 x 230V
3 x 400V
3 x 480V
3 x 600V
L1
L2/N
L3
X100
F1
Q1
PE
N
L3
L2
L1
1 x 120V
1 x 230V
SIA
GS
SIB
X1
NC
NO
COM
AC 240 V
3 A
X9
DC 24 V SELV/PELV
(+19.2 … +28.8 V)
"
1k...10k
0...10 V
S1
DI3
DI4
X3
GND
DO1
DI1
DI2
DI3
DI4
DI5
GND
AI1
AI2
10V
GND
AO1
24V
24E
24E
"
M
3~
+
J
J
U
W
V
X105
+
T1
T2
X109
"
Rb2/+UG
Rb1
X105
-UG
EMC-compliant installation
The drive system of inverter and drive comply with the EMC Directive 2014/30/EU if they are
installed according to the specications of CE-typical drive systems. These guidelines should
also be followed in installations requiring FCC Part 15 or ICES 001 compliance. The structure
at the installation location must support the EMC-compliant installation with shielded motor
cables.
• Please use suciently conductive shield connections.
• Connect the housing with shielding eect to the grounded mounting plate with a surface as
large as possible, e.g. of inverters and RFI lters.
• Use central earthing points.
The following example shows the eective wiring.
Low-capacitance motor cable
C-core/core/C-core/shield < 75/150pF/m≤ 2.5 mm² (≥ AWG 14)
C-core/core/C-core/shield < 150/300pF/m ≥ 4 mm² (≤ AWG 12)
Shield connection
Control connections
EMC cable gland
Mains cable
Control cable
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 15
© 11/2021 · EN · www.Lenze.com
1-phase mains connection 120V (90 V ... 132 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxA
Rated power kW 0.37 0.75 ... 1.1 0.37 ... 1.1 0.37 0.75 ... 1.1
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Screw terminal
Max. cable cross-section mm² 4 4 6 4 4
Stripping length mm 10 10 10 10 10
Tightening torque Nm 0.5 0.5 2 0.5 0.5
Required tool 
1.2 x 8.0

0.6 x 3.5

TX20

1.2 x 8.0

0.6 x 3.5
Rated data and fusing data
Inverter I55AP
137A 175A 211A
Rated power kW 0.37 0.75 1.1
Rated output current (8 kHz) A2.4 4.2 6
Max. output current * A4.8 8.4 12
Operation without mains choke
Rated mains current A9.6 16.8 22.9
Fuse
Characteristic gG/gL or gRL
Max. rated current A 32 32 32
Max. short-circuit current (SCCR) kA 5 5 5
Circuit breaker
Characteristic B
Max. rated current A 32 32 32
Max. short-circuit current (SCCR) kA 5 5 5
Residual current device (RCD) ≥ 30 mA, type B
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 16
© 11/2021 · EN · www.Lenze.com
1-phase mains connection 230/240V (170 V ... 264 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxB (1-phase), I55APxxxD (1/3-phase)
Rated power kW 0.37 ... 2.2
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Screw terminal
Max. cable cross-section mm² 4 10 4
Stripping length mm 10 10 10
Tightening torque Nm 0.5 2 0.5
Required tool 
1.2 x 8.0

TX20

1.2 x 8.0
Rated data (Heavy Duty) und fusing data
Inverter I55AP
137B 137D 155B 155D 175B 175D 211B 211D 215B 215D 222B 222D
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2
Rated output current (8 kHz) A2.4 3.2 4.2 6 79.6
Max. output current * A4.8 6.4 8.4 12 14 19.2
Operation without mains choke
Rated mains current A 5.7 7.6 10 14.3 16.7 22.5
Fuse
Characteristic gG/gL or gRL
Max. rated current A40 40 40 40 40 40
Max. short-circuit current (SCCR) kA 65 65 65 65 65 65
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA555555
Residual current device (RCD) ≥ 30 mA, type B
Rated data (Light Duty) – Data only applies to devices with Protection class IP31/NEMA 1
Inverter I55AP
137D 155D 175D 211D 215D 222D
Rated power kW 0.55 0.75 1.1 1.5 2.2 3
Rated output current (4 kHz) A2.9 3.8 5 7.2 8.4 11.5
Max. output current * A4.8 6.4 8.4 12 14 19.2
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 17
© 11/2021 · EN · www.Lenze.com
3-phase mains connection 230/240V (195 V ... 264 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxD (1/3-phase), I55APxxxC (3-phase)
Rated power kW 0.37 ... 0.75 1.1 ... 5.5 7.5 ... 11 15 ... 18.5 30 45 0.37 ... 5.5 7.5 ... 11 15 ... 18.5 30 ... 45 0.37 ... 0.75 1.1 ... 5.5 7.5 ... 11 15 ... 18.5 30 45
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Bolt Screw terminal
Max. cable cross-section mm² 4 6 16 35 50 95 6 16 25 95 4 6 16 35 50 95
Stripping length mm 10 911 18 19 22 10 11 16 - 10 911 18 19 22
Tightening torque Nm 0.5 0.5 1.2 3.8 4 10 2 3.4 4 10 0.5 0.5 1.2 3.8 4 10
Required tool 
1.2 x 8.0

0.6 x 3.5

0.8 x 4.0

0.8 x 4.5

4.0

6.0

TX20

PZ2

PZ2

13

1.2 x 8.0

0.6 x 3.5

0.8 x 4.0

0.8 x 4.5

4.0

6.0
Rated data (Heavy Duty) und fusing data
Inverter I55AP
137D 155D 175D 211D 215D 222D 230C 240C 255C 275C 311C 315C 318C 330C 345C
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 15 18.5 30 45
Rated output current (8 kHz) A2.4 3.2 4.2 6 79.6 12 16.5 23 29 42 54 68 89 150
Max. output current * A4.8 6.4 8.4 12 14 19.2 24 33 46 58 84 108 136 178 300
Operation without mains choke
Rated mains current A3.9 4.8 6.4 7.8 9.5 13.6 15 20.6 28.8 36.3 52.2 62 78 80 135
Fuse
Characteristic gG/gL or gRL gG/gL, gR
Max. rated current A40 40 40 40 40 40 80 80 80 80 80 125 125 125 200
Max. short-circuit current (SCCR) kA 65 65 65 65 65 65 65 5 5 5 5 5 5 10 10
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 80 80 80 80 80 125 125 125 200
Max. short-circuit current (SCCR) kA55555555555551010
Residual current device (RCD) ≥ 30 mA, type B ≥ 300 mA, type B
Rated data (Light Duty) – Data only applies to devices with Protection class IP31/NEMA 1
Inverter I55AP
137D 155D 175D 211D 215D 222D 230C 240C 255C 275C 311C 315C 318C 330C 345C
Rated power kW 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 - 18.5 22 - -
Rated output current (4 kHz) A2.9 3.8 5 7.2 8.4 11.5 14.4 19.8 27.6 34.8 - 64.8 81.6 - -
Max. output current * A4.8 6.4 8.4 12 14 19.2 24 33 46 58 - 108 136 - -
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 18
© 11/2021 · EN · www.Lenze.com
3-phase mains connection 400 V (340 V ... 528 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxF
Rated power kW 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 45 55 ... 75 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 75 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 45 55 ... 75
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Bolt Screw terminal
Max. cable cross-section mm² 4 16 35 50 95 6 16 25 95 4 16 35 50 95
Stripping length mm 10 11 18 19 22 10 11 16 - 10 11 18 19 22
Tightening torque Nm 0.5 1.2 3.8 4 10 2 3.4 4 10 0.5 1.2 3.8 4 10
Required tool 
1.2 x 8.0

0.8 x 4.0

0.8 x 4.5

4.0

6.0

TX20

TX20

PZ2

13

0.6 x 3.5

1.2 x 8.0

0.8 x 4.5

4.0

6.0
Rated data (Heavy Duty) und fusing data
Inverter I55AP
137F 155F 175F 211F 215F 222F 230F 240F 255F 275F 311F 315F 318F 322F 330F 337F 345F 355F 375F
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 15 18.5 22 30 37 45 55 75
Rated output current (8 kHz) A 1.3 1.8 2.4 3.2 3.9 5.6 7.3 9.5 13 16.5 23.5 32 40 47 61 76 89 110 150
Max. output current * A2.6 3.6 4.8 6.4 7.8 11.2 14.6 19 26 33 47 64 80 94 122 152 178 220 300
Operation without mains choke
Rated mains current A1.8 2.5 3.3 4.4 5.4 7.8 9.6 12.5 17.2 20 28.4 37 46 53 54.9 68 80 99 135
Fuse
Characteristic gG/gL or gRL gR
Max. rated current A 32 32 32 32 32 32 50 50 50 50 50 80 80 80 125 125 125 200 200
Max. short-circuit current (SCCR) kA 65 65 65 65 65 65 5 5 5 5 5 5 5 5 10 10 10 10 10
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 50 50 50 50 50 80 80 80 125 125 125 200 200
Max. short-circuit current (SCCR) kA 5 5 5 5 5 5 5 5 5 5 5 5 5 5 10 10 10 10 10
Residual current device (RCD) ≥ 30 mA, type B ≥ 300 mA, type B
Rated data (Light Duty) – Data only applies to devices with Protection class IP31/NEMA 1
Inverter I55AP
137F 155F 175F 211F 215F 222F 230F 240F 255F 275F 311F 315F 318F 322F 330F 337F 345F 355F 375F
Rated power kW 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 15 18.5 22 30 -----
Rated output current (4 kHz) A1.6 2.2 2.9 3.8 4.7 6.7 8.8 11.9 15.6 23 28.2 38.4 48 56.4 - - - - -
Max. output current * A2.6 3.6 4.8 6.4 7.8 11.2 14.6 19 26 33 47 64 80 94 - - - - -
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 19
© 11/2021 · EN · www.Lenze.com
3-phase mains connection 480 V (340 V ... 528 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxF
Rated power kW 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 45 55 ... 75 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 75 0.37 ... 5.5 7.5 ... 11 15 ... 22 30 ... 45 55 ... 75
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Bolt Screw terminal
Max. cable cross-section mm² 4 16 35 50 95 6 16 25 95 4 16 35 50 95
Stripping length mm 10 11 18 19 22 10 11 16 - 10 11 18 19 22
Tightening torque Nm 0.5 1.2 3.8 4 10 2 3.4 4 10 0.5 1.2 3.8 4 10
Required tool 
1.2 x 8.0

0.8 x 4.0

0.8 x 4.5

4.0

6.0

TX20

TX20

PZ2

13

0.6 x 3.5

1.2 x 8.0

0.8 x 4.5

4.0

6.0
Rated data (Heavy Duty) und fusing data
Inverter I55AP
137F 155F 175F 211F 215F 222F 230F 240F 255F 275F 311F 315F 318F 322F 330F 337F 345F 355F 375F
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 15 18.5 22 30 37 45 55 75
Rated output current (8 kHz) A 1.1 1.6 2.1 3 3.5 4.8 6.3 8.2 11 14 21 27 34 40.4 52 65 77 96 124
Max. output current * A 2.2 3.2 4.2 6 79.6 12.6 16.4 22 28 42 54 68 80.8 104 130 154 192 248
Operation without mains choke
Rated mains current A 1.5 2.1 2.8 3.7 4.5 6.5 8 10.5 14.3 16.6 23.7 30.7 38 44.2 45.7 57 66.7 83 113
Fuse
Characteristic gG/gL or gRL gR
Max. rated current A 32 32 32 32 32 32 50 50 50 50 50 80 80 80 125 125 125 200 200
Max. short-circuit current (SCCR) kA 65 65 65 65 65 65 5 5 5 5 5 5 5 5 10 10 10 10 10
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 50 50 50 50 50 80 80 80 125 125 125 200 200
Max. short-circuit current (SCCR) kA 5 5 5 5 5 5 5 5 5 5 5 5 5 5 10 10 10 10 10
Residual current device (RCD) ≥ 30 mA, type B ≥ 300 mA, type B
Rated data (Light Duty) – Data only applies to devices with Protection class IP31/NEMA 1
Inverter I55AP
137F 155F 175F 211F 215F 222F 230F 240F 255F 275F 311F 315F 318F 322F 330F 337F 345F 355F 375F
Rated power kW 0.55 0.75 1.1 1.5 2.2 3 45.5 7.5 11 15 18.5 22 30 -----
Rated output current (4 kHz) A 1.3 1.9 2.5 3.6 4.2 5.8 7.6 9.8 13.2 18.3 25.2 32.4 40.8 48.5 - - - - -
Max. output current * A 2.2 3.2 4.2 6 79.6 12.6 16.4 22 28 42 54 68 80.8 - - - - -
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands

Operating instructions i550 protec frequency inverter | 20
© 11/2021 · EN · www.Lenze.com
3-phase mains connection 600 V (425 V ... 660 V, 45 Hz ... 65 Hz)
Terminal data
Inverter I55APxxxG
Rated power kW 0.75 ... 5.5 7.5 ... 11 15 ... 22 0.75 ... 5.5 7.5 ... 11 15 ... 22 0.75 ... 5.5 7.5 ... 11 15 ... 22
Connection Mains connection X100 PE connection Motor connection X105
Connection type Screw terminal Screw Screw terminal
Max. cable cross-section mm² 4 16 35 6 16 25 4 16 35
Stripping length mm 10 11 18 10 11 16 10 11 18
Tightening torque Nm 0.5 1.2 3.8 23.4 4 0.5 1.2 3.8
Required tool 
1.2 x 8.0

0.8 x 4.0

0.8 x 4.5

TX20

PZ2

PZ2

1.2 x 8.0

0.8 x 4.0

0.8 x 4.5
Rated data (Heavy Duty) und fusing data
Inverter I55AP
175G 215G 222G 240G 255G 275G 311G 315G 318G 322G
Rated power kW 0.75 1.5 2.2 45.5 7.5 11 15 18.5 22
Rated output current (8 kHz) A 1.7 2.7 3.9 6.1 9 11 17 22 27 32
Max. output current * A3.4 5.4 7.8 12.2 18 22 34 44 54 64
Operation without mains choke
Rated mains current A 2.0 3.2 4.4 6.8 10.2 12.4 19.7 25 31 36
Fuse
Characteristic gG/gL or gRL
Max. rated current A 20 20 20 40 40 40 40 60 60 60
Max. short-circuit current (SCCR) kA 65 65 65 5555555
Circuit breaker
Characteristic -
Max. rated current A----------
Max. short-circuit current (SCCR) kA ----------
Residual current device (RCD) ≥ 30 mA, type B
Rated data (Light Duty) – Data only applies to devices with Protection class IP31/NEMA 1
Inverter I55AP
175G 215G 222G 240G 255G 275G 311G 315G 318G 322G
Rated power kW 1.1 2.2 3 5.5 7.5 11 15 18.5 22 30
Rated output current (4 kHz) A 2 3.2 4.7 7.9 10.8 13.2 22 27 32.4 41
Max. output current * A3.4 5.4 7.8 12.2 18 22 34 44 54 64
* Overload time = 3s, recovery time = 12s
Electrical installation









EMC lter motor cable
3-phase | 480 V 3-phase | 600 V
3-phase | 230/240V 3-phase | 400 V1-phase | 120V 1-phase | 230/240V
Control terminals Relay output
Connection diagramPreparation
Brake resistor Networks Functional safety Safe torque o (STO)
PTC input
Cable glands