Schneider Electric S387 User Manual

English

8 P02 501 EN.01/01

www.schneider-electric.com

General remarks

The following symbols should assist you in handling the instructions:

Advice, tip !

General information, note exactly !

The requirements for successful commissioning are correct selection of the device, proper planning and installation. If you have
any further questions, please contact the supplier of the device.

Capacitor discharge !

Before performing any work on or in the device, disconnect it from the mains and wait at least 15 minutes until the capacitors have
been fully discharged to ensure that there is no voltage on the device.

Automatic restart !

With certain parameter settings it may happen that the frequency inverter restarts automatically when the mains supply returns
after a power failure. Make sure that in this case neither persons nor equipment is in danger.

Commissioning and service !

Work on or in the device must be done only by duly qualified staff and in full compliance with the appropriate instructions and
pertinent regulations. In case of a fault contacts which are normally potential-free and/or PCBs may carry dangerous voltages. To
avoid any risk to humans, obey the regulations concerning "Work on Live Equipment" explicitly.

Terms of delivery

The latest edition "General Terms of Delivery of the Austrian Electrical and Electronics Industry Association" form the basis of our
deliveries and services.

Specifications in this document

We are always anxious to improve our products and adapt them to the latest state of the art. Therefore, we reserve the right to
modify the specifications given in this document at any time, particular those referring to weights and dimensions. All planning
recommendations and connection examples are non-binding suggestions for which we cannot assume liability, particularly
because the regulations to be complied depend on the type and place of installation and on the use of the devices.

All foreign-language translations result from the German or English version. Please consider those in case of unclarity.

Basis of contract

The specifications in text and drawings of this document are no subject of contract in the legal sense without explicit confirmation.

Regulations

The user is responsible to ensure that the device and its components are used in compliance with the applicable regulations. It is
not permitted to use these devices in residential environments without special measures to suppress radio frequency
interferences.

Trademark rights

Please note that we do not guarantee that the connections, devices and processes described herein are free from patent or
trademark rights of third parties.

Copyright

Layout, equipment, logos, texts, diagrams and pictures of this document are copyrighted. All rights are reserved.

Altivar Frequency inverters for medium voltage motors

ATV61HC••N4D387 or ATV61HC••Y387

110...630, 3AC 380 to 480 V or

110...800, 3AC 500, 600 or 690 V

Theme Page

The inverter solution for medium voltage motors .....................3

Application...........................................................................4

Advantages of the speed control ........................................5

Speed control of medium voltage motors...........................7

Specification ..............................................................................8

Technical data .....................................................................8

Mains voltage 400 … 440 V, 50 Hz ...................................10

Mains voltage 480 V, 60 Hz...............................................12

Mains voltage 690 V, 50 Hz...............................................14

Step-down transformer (440 V, 50 Hz)..............................16

Step-down transformer (725 V, 50 Hz)..............................18

Technical data of the power transformer (step-down)......20

12-pulse supply .................................................................21

Technical data of the output transformer (step-up) ..........22

Wiring and connection.............................................................23

Wiring diagram for low voltage supply ..............................23

Wiring diagram for medium voltage supply ......................25

Allocation table for options depending on the power .......27

Parameterization......................................................................28

Frequency inverter settings ...............................................28

Motor data .........................................................................29

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The instructions in hand cover the topics rating and dimensioning as well as parameterization of a
ATV61HC••N4D387 or ATV61HC••Y387 frequency inverter for the operation of medium voltage
motors.

Use this instructions additionally to the device documentation "Description of functions" and
"Mounting instructions".

1

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2

The inverter solution for medium voltage motors

(only with squared load torque)

The ATV61 adds even more numerous functions to the well-known
and extremely well-proven features of the Altivar inverter range. It
presents itself to the user as being even more robust with improved
operation and having a clearly wider range of user possibilities.

The choice comprises the ATV61 frequency inverter in
various cubicle designs in addition to the built-in and wall­mounting designs.

The basic design of the Altivar customized enclosure
complies with protection degree IP23 and IP54 and
includes a main switch, mains fuses, AC choke, sinus filter
and motor terminals. Further installed components, such
as circuit breaker, line contactor, various control options,
alternatively with a field bus, safety relay, cubicle heating,
and much more, see ATV61 catalogue.

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In addition, special designs are available such as changed
cubicle colour, cubicle cooling via an air conditioner or an
air/water heat exchanger, and customer-specific control
equipment.

3

Application

There is a wide application area for medium voltage motors. Many existing systems from approx. 200 kW use
medium voltage motors for pumps or fans. The flow control often takes place by simple mechanical
components like valves and flaps and so it represents a very inefficient operation.

Also for new systems medium voltage motors with a power range below 1 MW are used. That applies mainly to
pump technology for petrochemical and geothermal applications. The length of the motor cables often
exceeds more than 1000 m but when using medium voltage motors undesired voltage drops at the lines can
be avoided.

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4

Advantages of the speed control

Restriction

The restriction of the flow rate is common practice. Thereby the
system characteristic is changed by increasing the friction due
to reduction of the cross section. The losses arising due to the
restriction are proportional to the area Q x H.

Bypass

In case of a pump operated with constant speed the flow rate
can be controlled in such a way that only those part is
separated which is required for the system and the residual
rate is returned to the intake area. The arising losses due to the
returning flow medium is proportional to the area Q x H.

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5

Speed control

Regarding technic and energy the most advantageous
possiblity for changing the flow rate is the operation of the
centrifugal pump with variable speed. This operating mode
leads to a parallel displacement of the pump characteristic. In
case of this method additional, continuous actuators in the
system are not necessary because the pump also assumes the
part of the actuator with integral function.

At the operation of a centrifugal pump the effect occurs that
the efficiency remains within its optimum range for speed
control ranges from 1:3 to 1:5. This property of the centrifugal
pump is the basis for the fact that speed control is a very low
price variant in comparison with other methods. Because of the
achieved energy saving the costs for purchasing the frequency
inverter amortize within short time.

Further advantages of the speed control are avoiding current peaks in the supplying mains due to direct-on­line starting as well as preserving the mechanics of the pump and avoiding shock pressures in the hydraulic
system by controlled acceleration and deceleration along the set ramps.

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6

Speed control of medium voltage motors

A medium voltage frequency inverter is not the only solution for the speed control of medium voltage motors.

Based on standard well proven low voltage components the Altivar transformer solution is a very economical
alternative.

There are two configurations in principle:

1. The drive is connected in the medium voltage line of the motor

2. The drive is supplied by low voltage and operates a medium voltage motor

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Thereby the medium voltage value of the motor is not defined because accurate adaptation takes place by the
transformers.

These ATV61 are available from 110 kW and above!

7

Specification

Technical data

Input

ATV61HC••N4D387: 380 V -15% to 480 V +10% for TT, TN or IT-mains *)

Voltage

Frequency

Overvoltage class Class III according to EN 50178

Output

Control method V/f-characteristic

Voltage 3 AC 0...100% mains voltage, dynamic voltage stabilization

Overload 20 % for 60 s or 35 % for 2 s

Pulse frequency 2.5 kHz, not adjustable

Frequency / Base
frequency

Short circuit protection

Design Built-in unit for vertical mounting

Cooling forced

Frequency resolution,
digital

Speed accuracy Slip frequency

Mechanical strength

Mechanical vibration

Shock

*) See ATV61 catalogue for technical data and remarks for mains voltages.

ATV61HC••Y387: 500 V -15% to 690 V +10% for TT, TN or IT-mains *)
not for corner grounded

50 / 60 Hz ±5 % *)

0...100 Hz / 25...100 Hz, adjustable

All-pole protected against short circuit and earth fault by means of overcurrent
switch-off

0.01 Hz / 50 Hz, frequency stability: ±0.01 % / 50 Hz

according to IEC/EN 60068-2-6

ATV61HC11N4D387…63N4D387
ATV61HC11Y387…80Y387:

1.5 mm in the range of 3...10 Hz,

0.6 g at 10...200 Hz
(3M3 according to IEC/EN 60721-3-3)

according to IEC/EN 60068-2-27

ATV61HC11N4D387…16N4D387
ATV61HC11Y387…20Y387:

ATV61HC22N4D387…63N4D387
ATV61HC25Y387…80Y387:

7 g for 11 ms
(3M3 according to IEC/EN 60721-3-3)

4 g for 11 ms
(3M3 according to IEC/EN 60721-3-3)

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8

Ambient conditions

Operating temperature

Storage / Transport
temperature

Protection degree

Environmental class / Humidity

Altitude

Allowed pollution

-10...+45°C

(3K3 according to IEC/EN 60721-3-3)
up to +60°C with derating

-25...+70°C

sideways, front IP31
top IP20 (IP31 with DC box)
bottom IP00 (IP31 with terminal box)

Class 3K3 in accordance with IEC/EN 60721-3-3 / no condensation, max.
95 % relative humidity

ATV61HC••N4D387: up to 1000 m, beyond power decrease up to 3000 m
ATV61HC••Y387: up to 1000 m, beyond power decrease up to 2400 m

Pollution degree 2 according to EN 61800-5-1

3C2 and 3S2 according to
EN 60721-3-3

Protection class Class 1 according EN 50178

Standards

Basic standard The devices are designed, built and tested on the basis of EN 50178.

EMC immunity

EMC emission

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Insulation

According to EN 61800-3, 1st and 2nd environment
(IEC 1000-4-2; IEC 1000-4-3; IEC 1000-4-4; IEC 1000-4-5; IEC 1000-4-6)

in accordance with product standard EN 61800-3,
2nd environment, category C3

Galvanic insulation in accordance with EN 50178 PELV (Protective Extra
Low Voltage)

Approvals CE, UL, CSA

9