Schneider Electric

Telemecanique

Variable Speed/Frequency Drive (VSD/VFD) / Inverter

Altivar series

Altivar 71 series

(output) 0.1-500 Hz

Variable Speed / Frequency Drive (VSD/VFD) / Inverter
U/F ratio (2 points / 5 points)
Sensorless flux vector control
ENA System
Vector control with or without speed feedback
220% of the nominal motor torque for 2s
170% of the nominal motor torque for 60s

DC choke
built-in EMC filter
built-in heatsnk.
coated version

323-528Vac (380Vac / 400Vac / 480Vac / 500Vac nom.)

detachable graphical display + keypad

3-phase (3P)

387A (380Vac; 2.5kHz)
387A (460Vac; 2.5kHz)
638A max. current (for 2s)
580A max. current (for 60s)

200kW

300HP

Modbus
CANopen

Wall mounting

5 x digital inputs (24Vdc; sink/source) (LI1-LI5; programmable)
1 x digital input (24Vdc; sink/source) (LI6; programmable as discrete or PTC input)
1 x digital input (24Vdc) (PWR safety input)

1 x digital output (C/O SPDT rly. contact) (R1)
2 x digital outputs (NO rly. contacts) (R2)

1 x analog input (-10...+10Vdc)
1 x analog input (0-10Vdc / 0-20mA)

1 x analog output (0-10Vdc / 0-20mA)

IP20
UL type 1

H1190mm x W595mm x D377mm

conformal coating (reinforced version)

357A (380Vac)
286A (480Vac)

235kVA (380Vac)

Control of asynchronous motors
Control of synchronous motors
Complex machines
Wood machines
Process machines
Material handling
Packaging
Hoisting
Textile machines
High-power machines

Phasing out

ATV930C22N4
ATV930C25N4C

CSA
CE
C-Tick
DNV
GOST
NOM 117
UL
EN/IEC 61800-3 (environment 1 and 2; category C3)
EN/IEC 61800-5-1
EN 55011 (class A; group 2)
IEC 60721-3-3 class 3C1
IEC 60721-3-3 class 3S2
EN/IEC 60529
IEC 61000-4-2
IEC 61000-4-3
IEC 61000-4-4
IEC 61000-4-6
IEC 61000-4-11

With its different types of motor control and numerous integrated functions the Altivar 71 range of variable speed drives meets stringent requirements.
It is suitable for demanding drive systems
- Torque and speed accuracy at very low speed high dynamic performance with Flux Vector Control with or without sensor
- Extended frequency range for high-speed motors
- Parallel connection of motors and special drives using the voltage/frequency ratio
- Static speed accuracy and energy saving for open-loop synchronous motors
- Smooth flexibility for unbalanced machines with the ENA (ENergy Adaptation) System.

In conjunction with the wide voltage range for a 690V a line supply the Altivar 71 drive's advanced functions boost performance levels and make machines more versatile so they can be used for a large number of applications.

Hoisting
- Brake control adapted for translational -- hoisting and slewing movements
- Load measurement using weight sensor
- High-speed hoisting
- Brake feedback management
- Limit switch management
- Slack sling

Handling
- Very quick response times on transmission of a command (2ms +/-0.5ms)
- Reference via pulse train or differential analog input
- Control via the principal communication networks
- Position control via limit switches with time optimization at low speed
- Multiple parameter settings via parameter set switching

Packaging
- Up to 50Hz of the bandwidth
- Very quick response times on change of reference (2ms +/-0.5ms)
- Control via integrated CANopen machine bus
- Position control via limit switches

Textile machines
- High resolution of the digital speed reference (1/32000)
- Use of synchronous motor irrespective of load helps assure speed accuracy
- High bandwidth
- Spooling function
- Connection to common DC bus
- Control of both asynchronous and synchronous motors supported
- High-performance speed loop

Wood-working machines
- Fastest possible controlled stop on loss of line supply
- Control via integrated CANopen machine bus
- Protection of motor against overvoltages

Process machinery
- PID regulator
- High-resolution references
- Speed or torque control
- Connection to the principal communication networks
- Separate control section power supply
- Braking unit via re-injection to the line supply
- Connection to common DC bus

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