Lenze i550 Series User manual

Operating instructions i550 motec frequency inverter | 1
© 03/2022 · EN · www.Lenze.com
Contents
i550 motec frequency inverter
0.37 ... 5.5 kW
Operating instructions
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Operating instructions i550 motec frequency inverter | 2
© 03/2022 · EN · www.Lenze.com
General information
Identication
Information
Overview
Hardware overview of the inverter
M23 power
Status LEDs
Han Q8
X100.2
X397
X1
X100.1
X105
X3.1
X3.2
X16
X396
M25
Warnings
Functional
safety
(Basic Safety - STO)
Fan, option
Wall adapter, option
Power supply
Motor connection
Nameplate
Network (OUT)
Network (IN)
Control connections
Control connections
Diagnostic interface
Power supply
option
Han Q4/2 female
Han Q4/2 male
(Daisy Chain)
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Conventions

Operating instructions i550 motec frequency inverter | 3
© 03/2022 · 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 exclusively suitable for installation in control cabinets and, depending on the
protection class and version, for wall and motor mounting.
• The product may only be operated with motors that are suitable for 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 measurement for insulation resistance tests between control potential and
PE must be performed 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.
License 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 Conventions

Operating instructions i550 motec frequency inverter | 4
© 03/2022 · EN · www.Lenze.com
Identication of the products
General information
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Identication
Information
Overview 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
2
Mains voltage and connection type
C3/PE AC 230/240 V
F3/PE AC 400 V
3/PE AC 480 V
3
Product variant
0Without control elements
AWith repair switch
BWith repair switch, monitored
CWith repair switch with protective function
DWith repair switch with protective func-
tion, monitored
EWith repair switch, monitored, and control
elements
FWith repair switch, monitored, control
element, and potentiometer
GWith repair switch and control elements
HWith repair switch, control element, and
potentiometer
IWith repair switch with protective func-
tion, and control elements
JWith repair switch with protective func-
tion, monitored, and control elements
KWith repair switch with protective func-
tion, control element, and potentiometer
L
With repair switch with protective func-
tion, monitored, control element, and
potentiometer
4
Integrated functional safety
0Without safety function
ABasic Safety - STO
5
Design/mounting
0Without adapter
AWall adapter with Han Q8
BWall adapter with cable gland (M25)
CWall adapter with M23 power
DWall adapter with Han Q8 and fan
EWall adapter with cable gland (M25) and
fan
FWall adapter with M23 power and fan
GWall adapter with cable gland (M40)
HWall adapter with M40 power
IMotor adapter for BG063 - BG071
JMotor adapter for BG080 - BG112
KMotor adapter for BG132
LMotor adapter for BG160 - BG180
6
Application area
0Default parameter setting: Region EU (50-
Hz networks)
1Default parameter setting: Region US (60-
Hz networks)
7
WLAN
0Without WLAN
WWith WLAN
8
Control connections
0Standard I/O
1Application I/O
9
Network
KEtherCAT
LPROFINET
MEtherNet/IP
WModbus TCP
5 5 A M 137 FI 0 A D 0 0 0
1234 5670 K 8 9 S

Operating instructions i550 motec frequency inverter | 5
© 03/2022 · 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 Conventions
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Operating instructions i550 motec frequency inverter | 6
© 03/2022 · 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
Perform insulation resistance tests between control potential 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 instructions Residual hazards

Operating instructions i550 motec frequency inverter | 7
© 03/2022 · 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 instructions Residual hazards
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Operating instructions i550 motec frequency inverter | 8
© 03/2022 · 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-motec-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 IP66
Data applies for operationally ready mounted state and not in wire range of terminals
NEMA NEMA 250 Type 4X outdoor
UL 50E Type 12
Type 4X outdoor
Climate Operation EN 60721-3-3:1995 +A2:1997
3K3 (-30 ... +60 °C) Operation at a switching frequency of 8, 12 or 16 kHz:
Above +40°C: reduce rated output current by 2.5 %/°C
3C3 For chemically active substances
3S3 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 200% for 3s, 150% for 60s
Further standards and operating conditions can be found in the project planning documents.
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Operating instructions i550 motec frequency inverter | 9
© 03/2022 · EN · www.Lenze.com
Mechanical installation
EE
H1
H
B
B1
E
E
Dimensions and assembly
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 B T H1 B1 Screws E
[kW] [kg] [mm] [mm] [mm] [mm] [mm] [mm]
3-phase mains connection 230/240 V devices
I55AMxxxC 0.37 ... 1.1 kW 3.2 219 265 128 182 90 4x M5 >50
I55AMxxxC 1.5 ... 3 kW 3.8 219 265 152 182 90 4x M5 >50
3-phase mains connection 400/480 V devices
I55AMxxxF 0.37 ... 2.2 kW 3.2 219 265 128 182 90 4x M5 >50
I55AMxxxF 3 ... 5.5 kW 3.8 219 265 152 182 90 4x M5 >50
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Operating instructions i550 motec frequency inverter | 10
© 03/2022 · EN · www.Lenze.com
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.
• Device screws must be tightened to the specied tightening torque.
NOTE
For voltage supply with DC 24...48V (-20% ... +4 %), use only a safely separated power supply
unit in accordance with prevailing SELV/PELV requirements.
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram
Preparation Networks Functional safety Safe torque o (STO)
PTC input

Operating instructions i550 motec frequency inverter | 11
© 03/2022 · EN · www.Lenze.com
Connection diagram
The connection diagram is considered exemplary for all voltage and power classes.
F1
…
F3
L2.1 L3.1
GND
24E.1
PE
L1.1
X100.1
PE
N
L3
L2
L1
3 x 230V
3 x 400V
3 x 480V
SIB
GS
SIA
X1
n.c.
DI3| DO2|C/Q(2)
GND| L-(2)
DI4
24V| L+(2)
X3.2
n.c.
DI1| DO1|C/Q(1)
GND| L-(1)
DI2
24V |L+(1)
X3.1
Applicaon-I/O
Standard-I/O
"
M
3~
+
J
J
U
W
V
X105
+
T1
T2
"
BD2
BD1
X105
(X109)
EtherCAT
EtherNet/IP
Modbus TCP
PROFINET
X39X
USB
X16
DC 24 ... 48 V SELV/PELV
(-20 % … +4 %)
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.
Mains connection with multiple devices
Several inverters in close proximity can be connected to the mains using the integrated
Han-Q4/2 connectors. The mains cables are looped through from one inverter to the next via
the Han-Q4/2 connector.
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram
Preparation Networks Functional safety Safe torque o (STO)
PTC input

Operating instructions i550 motec frequency inverter | 12
© 03/2022 · EN · www.Lenze.com
3-phase mains connection 230/240V (195 V ... 264 V, 45 Hz ... 65 Hz)
Connection data
Inverter I55AMxxxC
Rated power kW 0.37 ... 3
Connection Mains connection X100.1 Mains connection X100.2 PE connection Motor connection X105
Connection type Han Q4/2 Han Q4/2 Screw Han Q8 M23 power Spring terminal
Connector name Q4/2 male Q4/2 female (Daisy Chain) - - - -
Max. cable cross-section mm² - - 6 - - 4
Stripping length mm - - 10 - - 8
Tightening torque Nm - - 2---
Required tool - -  TX20 - -  0.6 x 3.5
Separate PE connection only available for "Wall with cable gland or motor mounting" design/mounting
Rated data and fusing data
Inverter I55AM
137C 155C 175C 211C 215C 222C 230C
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3
Rated output current (8 kHz) A2.4 3.2 4.2 6 79.6 12
Max. output current * A4.8 6.4 8.4 12 14 19.2 24
Operation without mains choke
Rated mains current A 2.2 2.9 3.8 5.4 6.3 8.6 10.8
Fuse
Characteristic gG/gL or gRL
Max. rated current A 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA5555555
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA5555555
Residual current device (RCD) ≥ 30 mA, type B
* Overload time = 3s, recovery time = 12s
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 13
© 03/2022 · EN · www.Lenze.com
3-phase mains connection 400 V (340 V ... 528 V, 45 Hz ... 65 Hz)
Connection data
Inverter I55AMxxxF
Rated power kW 0.37 ... 5.5
Connection Mains connection X100.1 Mains connection X100.2 PE connection Motor connection X105
Connection type Han Q4/2 Han Q4/2 Screw Han Q8 M23 power Spring terminal
Connector name Q4/2 male Q4/2 female (Daisy Chain) - - - -
Max. cable cross-section mm² - - 6 - - 4
Stripping length mm - - 10 - - 8
Tightening torque Nm - - 2---
Required tool - -  TX20 - -  0.6 x 3.5
Separate PE connection only available for "Wall with cable gland or motor mounting" design/mounting
Rated data and fusing data
Inverter I55AM
137F 155F 175F 211F 215F 222F 230F 240F 255F
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3 45.5
Rated output current (8 kHz) A 1.3 1.8 2.4 3.2 3.9 5.6 7.3 9.5 13
Max. output current * A2.6 3.6 4.8 6.4 7.8 11.2 14.6 19 26
Operation without mains choke
Rated mains current A 1.2 1.6 2.2 2.9 3.5 5 6.6 8.6 11.7
Fuse
Characteristic gG/gL or gRL
Max. rated current A 32 32 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA555555555
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA555555555
Residual current device (RCD) ≥ 30 mA, type B
* Overload time = 3s, recovery time = 12s
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 14
© 03/2022 · EN · www.Lenze.com
3-phase mains connection 480 V (340 V ... 528 V, 45 Hz ... 65 Hz)
Connection data
Inverter I55AMxxxF
Rated power kW 0.37 ... 5.5
Connection Mains connection X100.1 Mains connection X100.2 PE connection Motor connection X105
Connection type Han Q4/2 Han Q4/2 Screw Han Q8 M23 power Spring terminal
Connector name Q4/2 male Q4/2 female (Daisy Chain) - - - -
Max. cable cross-section mm² - - 6 - - 4
Stripping length mm - - 10 - - 8
Tightening torque Nm - - 2---
Required tool - -  TX20 - -  0.6 x 3.5
Separate PE connection only available for "Wall with cable gland or motor mounting" design/mounting
Rated data and fusing data
Inverter I55AM
137F 155F 175F 211F 215F 222F 230F 240F 255F
Rated power kW 0.37 0.55 0.75 1.1 1.5 2.2 3 45.5
Rated output current (8 kHz) A 1.1 1.6 2.1 3 3.5 4.8 6.3 8.2 11
Max. output current * A 2.2 3.2 4.2 6 79.6 12.6 16.4 22
Operation without mains choke
Rated mains current A 1 1.4 1.9 2.7 3.2 4.3 5.7 7.4 9.9
Fuse
Characteristic gG/gL or gRL
Max. rated current A 32 32 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA555555555
Circuit breaker
Characteristic B
Max. rated current A 32 32 32 32 32 32 32 32 32
Max. short-circuit current (SCCR) kA555555555
Residual current device (RCD) ≥ 30 mA, type B
* Overload time = 3s, recovery time = 12s
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 15
© 03/2022 · EN · www.Lenze.com
Control connections
The function assignment of connectors X3.1 and X3.2 is congurable.
By default, the connectors are congured as digital inputs (DI1 ... DI4).
• Logic level "HIGH-active" or "LOW-active", debounce time, and inversion can be
parameterized.
• LOW = 0 ... +3V, HIGH = +12V ... +30V
M12 (A coded) Pin X3.1 X3.2
34
5
2 1
124V 24V
2DI2 DI4
3GND GND
4 DI1 DI3
5 Not assigned
Housing is connected to functional earth
Further conguration options for the connectors can be found in the commissioning
document.
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 16
© 03/2022 · EN · www.Lenze.com
PTC input
In the default setting, the motor temperature monitoring is active!
0.37 ... 5.5 kW
Connection Motor connector/terminal X105
Connection type Spring terminal, not pluggable
Max. cable cross-section mm² 4
Stripping length mm 8
Required tool 
0.6 x 3.5
Application T1 Connection of PTC or thermal contact
T2
Sensor types
PTC single sensor (DIN44081)
PTC triplet sensor (DIN44082)
Thermal contact
Note: The PT1000 temperature sensor is not
supported
NOTE
If the terminals T1 and T2 are used, e.g. to connect an external PTC thermistor or a thermal
contact, ensure at least one basic insulation to the potentials of motor, mains and M12
connectors as well as to the auxiliary supply to not restrict the safe isolation of the M12
connectors.
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 17
© 03/2022 · EN · www.Lenze.com
Networks
The Ethernet interface of the i550 motec inverter supports the typical topologies and
protocols of one of the following networks, depending on the version:
• EtherCAT
• EtherNet/IP
• Modbus TCP
• PROFINET
The Ethernet interface is designed as an M12 connector:
X396 (IN) / X397 (OUT)
M12 (D coded) Pin Assignment
34
21
1TX+
2RX+
3TX-
4 RX-
Housing is connected to functional earth
Electrical installation
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 18
© 03/2022 · EN · www.Lenze.com
Functional safety
DANGER!
Uncontrolled start-up
Improper installation of the safety engineering system can cause an uncontrolled starting
action of the drives.
Possible consequences: Death or severe injuries
• Safety engineering systems may only be installed and commissioned by qualied personnel.
• All wiring must be EMC-compliant.
• All control components (switches, relays, PLC, ...) must comply with the requirements of EN
ISO13849-1 and EN ISO 13849-2.
• Switches, relays with at least IP54 enclosure.
• Devices with a degree of protection less than IP54 must always be installed in a control
cabinet with a minimum protection class of IP54.
• The wiring must be shielded.
• It is essential to use insulated wire end ferrules for wiring.
• All safety-relevant cables outside the control cabinet must be protected, e.g. by means of a
cable duct.
• Securely eliminate short-circuits and crossed wires according to the specications of
ENISO13849-2.
• Please refer to EN ISO13849-1 and EN ISO 13849−2 for all further requirements and
measures.
• In the case of an external force eect on the drive axes, additional brakes are necessary. In
particular, please observe the eect of gravitational force on hanging loads!
• For safety-related braking functions, use safety-rated brakes only.
• The user must ensure that the inverter is only operated within the specied environmental
conditions in its intended application. Only by doing so can the specied safety-related
characteristics be adhered to.
DANGER!
Automatic restart when the requirement of the safety function is disabled.
Possible consequences: Death or severe injuries
• You must implement external measures in accordance with EN ISO 13849-1 to ensure that
the drive only starts up again after an acknowledgment.
NOTE
Overvoltage
Possible consequences: Destruction of the safety component
• Make sure that the maximum voltage (maximum rated) at the safe inputs does not exceed
32 V DC.
NOTE
Excessive humidity or condensation
Possible consequences: Malfunction or irreparable damage to safety component
• Only commission the safety component when it has acclimatized.
Electrical installation
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
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3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 19
© 03/2022 · EN · www.Lenze.com
Safe torque o (STO)
DANGER!
No “Emergency switching o” in accordance with EN 60204-1
When using the “Safe torque o (STO)” function, additional measures are required for an
“Emergency switching o” in accordance with EN 60204-1. There is no electrical isolation
between the motor and inverter, no service switch or maintenance switch!
Possible consequences: Death or severe injuries
• An “Emergency switching o” requires an electrical isolation, e.g. by a central mains
contactor.
X1
M12 (A coded) Pin Assignment
34
5
2 1
1 Not assigned
2SIA
3GS
4 SIB
5 Not assigned
Housing is connected to functional earth
Specications for SIA, SIB minimum typical maximum
LOW signal V -3 0+5
HIGH signal V +15 +24 +30
Runtime ms 3
Switch-o time ms 50 60
Input current SIA mA 10 14
Input current SIB mA 7 12
Input peak current mA 100
Test pulse duration ms 1
Test pulse interval ms 10
Connection of active and passive sensors
The connection diagrams shown are only example circuits. The user is responsible for the
correct safety-related design and selection of the components!
Active sensor Passive sensor Passive sensor + safety
switching device
X1
SIA GS SIB
"
S1
X1
SIA GS SIB
"
S1
DC 24 V SELV/PELV
+24 V 0 V
X1
SIA GS SIB
"
S2
S1
External power supply unit or 24 V
output of X3
S1: Active sensor
(Example: lightgrid)
S1: Passive sensor S1: Passive sensor
S2: Safety switching device
Safety-related characteristic values and further example circuits can be found in the project
planning document.
Electrical installation
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







3-phase | 480 V3-phase | 230/240V 3-phase | 400 V Control connections
Connection diagram Networks Functional safety Safe torque o (STO)
PTC input
Preparation

Operating instructions i550 motec frequency inverter | 20
© 03/2022 · EN · www.Lenze.com
Initial switch-on
DANGER!
Unexpected states during commissioning
Incorrect wiring can cause unexpected states during the commissioning phase.
Possible consequences: Death, severe injuries, or damage to property
• Wiring must be complete and correct.
• Wiring must be free of short circuits and earth faults.
• The motor circuit conguration (star/delta) must be adapted to the inverter.
• The motor must be connected in-phase (rotating direction).
• Check the "emergency o" function of the overall system.
• Clear hazardous area.
• Observe safety instructions and safety clearances.
Preconditions:
• The power connections must be wired.
• Connector X3.1 (digital input 1) must be wired.
X3.1
124V 24-V output (max. 100 mA)
4 DI1 Start
2DI2 Reset error (optional)
• The control connections of the safety technology must be wired.
1. Switch on mains voltage.
2. Check readiness for operation.
3. Observe the "DRIVE" LED status display on the front of the inverter.
Carry out functional test
Target: the motor connected to the inverter should rotate as quickly as possible.
Preconditions:
• The connected motor matches the inverter in terms of power.
• The parameter settings correspond to the state upon delivery.
• The inverter is ready for operation. The mains voltage is switched on.
Start the drive and stop it again:
1. Drive enabled: X1/SIA = HIGH and X1/SIB = HIGH
2. Start drive: X3.1/DI1 = HIGH (switch closed)
- The drive rotates with 20 Hz.
3. Stop drive again: X3.1/DI1 = LOW (switch open)
Commissioning
Important notesInitial switch-on
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Parameter overviewQuick commissioning
EASY Starter Additional functions
Basic setting Motor control
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