AS7W, AV7W, AG7W

Note the following regarding the encoder interfaces:

The electrical specifications of encoders with the ...W interface (sin/cos + RS485) correspond to the sin/cos signal definitions of the HIPERFACE® interface. However, in the digital interface RS485, they deviate from the HIPERFACE® standard and are only suitable for operation on inverters from SEW-EURODRIVE.

Encoder

Size, unit

AS7W

AV7W

AG7W

Motor series and size

 

DRN../DRU../DR2.71 – 280

Supply voltage

UB

DC 7 V – 30 V

Maximum current consumption

Iin

150 mA

Maximum pulse frequency

fmax

200 kHz

Incremental tracks; periods per revolution

A, B

2048 (11 bits)

C

Output amplitude per track

Uhigh

1 Vpp

Ulow

Signal output

Sin/cos

Output current per track

Iout

10 mA

Pulse duty factor in accordance with IEC 60469-1, n = constant

Phase offset A : B

n = constant

90° ± 2°

Accuracy of the incremental section Due to the stiffness of the torque bracket, you have to take into account an automatically resetting twist of ±0.6° (depending on the direction of rotation) of the encoder housing compared to the encoder shaft.

 

±0.0194° (±70")

Accuracy of the absolute section

 

±1 LSB (Least Significant Bit)

Scanning code

Binary code

Position resolution, increments per revolution

A, B

8192 (13 bits)

Multi-turn resolution

65536 revolutions (16 bits)

Data transmission

RS485

Serial data output

Driver to EIA RS485

Serial pulse input

Recommended driver to EIA RS485

Clock frequency

9600 baud

Clock-pulse space period

Vibration resistance in accordance with EN 60068‑2‑6

≤ 100 m/s2

Shock resistance in accordance with EN 60068‑2‑27

≤ 1000 m/s2

≤ 1000 m/s2

≤ 2000 m/s2

Maximum speed

nmax

6000 min-1

 

 

In area at risk of explosion:

-30 to +40 °C at maximum 6000 min-1

> 40 °C at maximum 4500 min-1

Duration until fault message
(disabled outputs)The encoder has a self-diagnostic function. If a fault is detected, the sensor reports it to the encoder evaluation unit by deactivating the output signals.

 

25 ms + 3/4 revolution

Activation time of rotary encoder internal diagnostics after switching on

 

Degree of protection according to EN 60529

IP66

Installation altitude

h

≤ 4000 m above sea level

In areas at risk of explosion: Permitted external pressure 0.8 – 1.1 bar (at typical height ≤ 1800 m above sea level)

Explosion protection mark ATEX/IECEx

 

ATEX equipment category 3 (3G, 3D, 3GD)

IECEx EPL .c (3G-c, 3D-c, 3GD-c)

IECEx certificate of conformity

 

IECEx IBE 18.0032X

Connection

Terminal strip in pluggable connection cover

Storage temperature

°C

-15 to +70

Maximum angular acceleration

 

104 rad/s²

Maximum degree of pollution during installation work

 

Degree of pollution 2 (IEC 61010-1, EN 60664-1, VDE 0110-1)

Ambient temperature of motor

DRN../DR2../DRU71 – 132S

°C

-30 to +60

DRN../DR2../DRU132M – 280

°C

-30 to +60

DRN../DR2../DRU71 – 250

°C

-30 to +60

DRN../DR2../DRU280

°C

-30 to +40

EDRN80MS – 132S

°C

-30 to +60

-30 to +60

-30 to +60

EDRN132M-200L

°C

-30 to +60

-30 to +50

-30 to +60

EDRN225

°C

-30 to +60

-30 to +60

-30 to +60

EDRN250-280

°C

-30 to +60

-30 to +40

-30 to +60

Functional safety