Omron L7 User manual

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VARISPEED L7
The frequency inverter for lifts
Advanced Industrial Automation

The Omron-Yaskawa L7 Varispeed frequency inverter is built with
the focus firmly on reliability, ease-of-use and smooth performance.
Designed specifically for the lift market, the L7 series ensures that
lifts exceed the ride quality and safety demands of the market.
Available in power ratings from 3.7kW up to 55kW, the Varispeed L7
offers a cost-effective solution for all your lift requirements.
The Varispeed L7 is based on years of experience in inverter design,
and uses the latest proven technology to provide reliability and safety.
Furthermore, lift-specific features have been developed in response
to market needs. These standard features include direct control
of motor brake and motor contactor, short floor operation, door
opening control and hardware base block. In addition, both open
loop and closed loop vector control is available in the Varispeed L7,
providing the optimum speed regulation to suit the application.
Ease of use has been considered from the outset. An LCD
operator is available to provide plain text set-up and
monitoring of the inverter, while a non-rotating auto-tuning
function ensures the inverter can obtain all of the required
motor information without the need to decouple the motor
from the gearbox. Option cards are available to integrate
the L7 series into communication networks such
as CANopen, DeviceNet or Profibus-DP.
DeviceNet is a registered trademark
of Open DeviceNet Vendors Association.
Made to drive lifts

High performance
The L7 provides best ride comfort through precise speed
regulation and best levelling accuracy through unique
slip compensation.
High reliability
Omron-Yaskawa’s frequency inverters are currently being
used in over 100,000 lifts around the world! The L7 ensures
3 million full load starts during its lifetime.
Ease of use
The L7 inverter has all the relevant lift, function and sequence
parameters. This allows the inverter to be easily adjusted
to every controller sequence available on the market, making
it ready for immediate use. Non-rotating auto-tuning measures
all the necessary motor equivalent circuit data at start-up,
so there is no need to disconnect the lift for acquiring data
on vector control. This also saves your setting up time.
In addition, the PC commissioning tool SYSDrive Configurator
ensures easy set-up.
Cost effective
The high current rating of the L7, even at high temperatures,
enables you to choose the same kW rating for inverters and
motors. The dedicated lift functionality saves you time during
installation and start-up. The L7’s four built-in relays provide
output signals that eliminate the need for extra components
in the lift controller panel. The relays control the motor brake
and contactors directly.
Safety built in
Even in the event of a power failure the L7 will continue
to bring the lift to a correct stop using a battery or an UPS
(uninterruptible power supply); the choice is yours.
The L7 features advanced IGBT protection, with five levels
of over-current protection available before an over-current
failure occurs. A brake and contactor control/supervision
circuit guarantees safe operation.
Key features
•High rated output current
•Direct control of motor brake and contactor
•Dedicated Lift sequence
•Emergency evacuation (battery operation)
•Short floor operation
•Door opening control
•Auto-tuning at standstill
•Connectivity to all popular field busses
•PCconfiguration and commissioning tool

General specifications of L7 frequency inverter series
OMRON EUROPE B.V. Wegalaan 67-69, NL-2132 JD, Hoofddorp, The Netherlands. Tel: [phone] Fax: [phone] www.europe.omron.com
For the Middle East, Africa and other countries in Eastern Europe, Tel: [phone] www.europe.omron.com
Authorised Distributor: Automation and Drives
• Programmable logic controllers • Networking
• Human-machine interfaces • Inverter drives • Motion control
Industrial Components
• Electromechanical relays • Timers • Counters • Sockets
• Programmable relays • Low voltage switch gear • Power supplies
• Temperature & process controllers • Solid-state relays
• Panel indicators • Level controllers • Industrial switches • Pushbutton switches
Sensing and Safety
• Photoelectric sensors • Proximity sensors • Rotary encoders
• Vision systems • RFID systems • Safety switches
• Safety relays • Safety sensors
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Although we strive for perfection, Omron Europe BV and/or its subsidiary and affiliated companies do not warrant or make any representations regarding the correctness or completeness of the information described in this document. We reserve the right to make any changes at any time without prior notice.
SF4P_Varispeed_L7_EN_INT01_1003
Model: CIMR-L7 L744P0 L745P5 L747P5 L74011 L74015 L74018 L74022 L74030 L74037 L74045 L74055
Applicable motor output (kW) 4.0 5.5 7.5 11 15 18.5 22 30 37 45 55
Rated output current at 45° (A) 11 14 18 27 34 41 48 65 80 96 128
Rated output current at 55° (A) 10.2 13.1 16.8 25.2 31.7 38 44.8 60.8 74.7 89.6 119.3
Rated output current 10kHz, at 45° (A) 10.2 13.0 16.7 25.1 31.6 38.1 44.6 48.8 60.0 72.0 96.0
Carrier frequency
Maximum output voltage 3-phase 380V-480V (limited by input voltage)
Rated input voltage and frequency 3-phase 380V-480V, 50/60Hz
Speed accuracy Vector control with PG: 0.01%
Open loop vector control: 0.2%
Braking transistor Built-in Optional
Control I/O 8 Digital inputs (PNP/NPN), 1 analogue input, 4 relay outputs, 3 option ports
5kHz default (adjustable up to
10kHz with derating)
8kHz default
(adjustable up to 15kHz with derating)