HEIDENHAIN PWM 20: 8 Specifications

PWM 20

Operating Instructions

en

29

8 Specifications

Electrical data

Power supply

100 V AC to 240 V AC (±10 %), 

50 Hz to 60 Hz (±2 Hz)

Approx. 20 W

24 V DC (±10 %), 

approx. 20 W

Measurement

of supply vol-

tage and supp-

ly current

Voltage: ± 0.5 % (min. ±5 mV)

Current: ± 2 % (min. ±1 mA)

Encoder input  X1

15-pin D-sub connection, female

Support depends on the software version of the ATS soft-

ware

Adjustable from 2 V to 30 V with/without remote sense

control

Current limitation 750 mA

Information about the cable lengths:

The specified cable length applies when

HEIDENHAIN cables are used. The supply

voltage range of the encoder must be

maintained.

EnDat 2.1/

EnDat 2.2

1

Cable length: Functional limit < 100 m,

depending on the clock frequency

Compliance with test limits < 2 m 

(only incremental signals)

Input frequency of incremental signals

3

:

< 1000 kHz

1 V

PP 

1

Cable length: Functional limit < 150 m

Compliance with test limits < 2 m

Input frequency of incremental signals

2

:

< 1000 kHz

TTL

Cable length: Functional limit

< 100 m/50 m, depending on min. edge

separation

Compliance with test limits < 2 m

Input frequency of incremental signals :

< 1000 kHz

Edge separation > 20 ns

HTL

4

Cable length: Functional limit < 300 m,

depending on min. edge separation

Compliance with test limits < 2 m

Input frequency of incremental signals :

< 500 kHz

Edge separation > 20 ns

Encoder input  X1

11 µA

PP

1

Cable length: Functional limit < 30 m

Compliance with test limits < 2 m

Input frequency of incremental signals

2

:

< 300 kHz

Fanuc, 

Mitsubishi, 

Yaskawa

Panasonic

Cable length: Functional limit < 30 m

SSI

Cable length: Functional limit < 100 m

1

Incremental signals are displayed in inverted form

2

Cutoff frequency, reduced by the ATS software to 100 kHz for

certain measuring functions

3

If supported by the connected encoder

4

HTL only for service purposes via external adapter,

e.g. ID 1093210-01

Encoder output X2

15-pin D-sub connection, male

Feed-through

mode of X1

Directly or via SA xxx signal adapter, de-

pending on the ATS version

EnDat 2.1/EnDat 2.2

Fanuc/Mitsubishi

1 V

PP

TTL

11 µA

PP

External functions X3

6-pin Mini-DIN-connection, female

MSB output

For EnDat 2.1/2.2

Encoder input X4

8+2-pin RJ-45 connection, female

DRIVE-CLiQ

1

Only for HEIDENHAIN encoders

1

DRIVE-CLiQ is a registered trademark of Siemens

Aktiengesellschaft, only HEIDENHAIN encoders are supported

Data interface X5

USB

USB 2.0 high speed

1

1

Lower USB transfer rates can result in measuring errors.

Operating Instructions

en

PWM 20

30

Test limits 1 V

PP

Measuring range for all input frequencies: 1.54 V

PP

.

The extended measuring range 2 (9.6 V

PP

) has increased

tolerances. On some specific encoders (e.g. with 3 V

PP

interface), measuring range 2 is set automatically by the

ATS software.

Parameters

Input frequency in kHz

< 1

1 to 250

250 to 500

Signal amplitude

(A, B, R)

±2 %

±3 %

±4 %

Asymmetry

±0.002

±0.006

–

Signal amplitude

ratio

±0.5 %

±0.5 %

–

On-off ratio error

TV1 or TV2

±0.5°

±1°

±1.5°

Phase angle error

±0.5°

±1°

±1.5°

Reference pulse

width

±2°

–

–

Reference pulse

position

±2°

–

–

Test limits 11 µA

PP

Measuring range for all input frequencies: 15.4 µA

PP

The extended measuring range 2 (96 µA

PP

 has increased

tolerances. On some specific encoders (e.g. with 25 µA

PP

interface), measuring range 2 is set automatically by the

ATS software.

Parameters

Input frequency in kHz

< 1

1 to 300

Signal amplitude (A, B, R)

±3 %

±5 %

Asymmetry

±0.006

±0.006

Signal amplitude ratio

±2 %

±2 %

On-off ratio error TV1 or TV2

±1.5°

±1.5°

Phase angle error

±0.5°

±1.0°

Reference pulse width

±6.0°

–

Reference pulse position

±3.0°

–

Test limits TTL

Measuring range for all input frequencies: 5 V

Parameters

Input frequency in kHz

< 100

100 to 500 500 to 1000

Signal amplitude

1

Low level

High level

±0.05 V

±2 %

–

–

On-off ratio error

TV1 or TV2

±0.5°

±1.5°

±2.5°

Phase angle error

±0.5°

±1.5°

±2.5°

Reference pulse

width

±0.5°

±1.5°

±2.5°

Reference pulse

position

±0.5°

±1.5°

±2.5°

1

Signal amplitude (U

a1

, U

a1

, U

a2

, U

a2

, U

a0

, U

a0

, U

aS

)

Test limits HTL

Measuring range for all input frequencies: 10 V to 30 V.

Parameters

Input frequency in kHz

< 100

100 to 500

Signal amplitude

1

Low level

High level

±0.1 V

±3 %

–

On-off ratio error

TV1 or TV2

±0.5°

±1.5°

Phase angle error

±1.5°

±4°

Reference pulse

width

±1.5°

±2.5°

Reference pulse

position

±1.5°

±2.5°

1

HTL only for service purposes via external signal adapter, ID

1093210-01

Ambient conditions

Operating

temperature

0 °C to 45 °C, no condensation

Storage

temperature

0 °C to 70 °C, no condensation

Max. contaminati-

on level

II

Protection

EN 60529

IP 20

Dimensions

See dimension drawings "D".

All dimensions are in millimeters [mm].