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Cooling / Construction type (b)

The hygiene motors in the 8JSB and 8JSQ series are self-cooled and have a stainless steel design. They are only available as a single cable (built-in hybrid connector) solution with a "straight" connection direction. The mounting method is the only difference between them.

The 8JSB series is designed with flange-mounted construction.

The 8JSQ series is designed with front-mounted construction.

Size (c)

8JSB / 8JSQ three-phase synchronous motors are available in size 3, 4, 5 and 6.

They have different dimensions (especially flange dimensions) and power ratings. These different sizes are indicated by a number represented by (c) in the model number. The larger the number, the larger the flange dimensions and power rating for the respective motor.

Available sizes

Cooling / Construction type

Available sizes

3

4

5

6

8JS

B

Yes

Yes

Yes

Yes

Q

Yes

Yes

Yes

Yes

Length (d)

8JSB / 8JSQ three-phase synchronous motors are available in five different lengths. They have different power ratings with identical flange dimensions. These different lengths are indicated by a number represented by (d) in the model number.

Length

Available sizes

3

4

5

6

1

Yes

Yes

Yes

---

2

Yes

Yes

Yes

Yes

3

Yes

Yes

Yes

Yes

4

---

Yes

Yes

Yes

5

---

---

---

Yes

Encoder system (ee)

8JSB / 8JSQ hygienic motors are available with optical and inductive EnDat 2.2 encoders. The encoder system is listed as part of the model number in the form of a 2-digit code (ee).

EnDat encoders

General information

Digital drive systems and position control loops require fast and highly secure transfer of data obtained from position measuring instruments. In addition, other data such as drive-specific characteristics, correction tables, etc. should also be available. To ensure a high level of system security, measuring instruments must be integrated in routines for detecting errors and be able to perform diagnostics.

The EnDat interface is a digital, bidirectional interface for measuring instruments. It is able to output position values from incremental and absolute measuring instruments and can also read and update information on the measuring instrument or store new data there. Because it relies on serial data transfer, only 4 signal lines are needed. Data is transferred synchronously to the clock signal defined by the subsequent electronics. The type of transfer used (e.g. for position values, parameters, diagnostics, etc.) is selected using mode commands sent to the measuring instrument by the subsequent electronics.

EnDat 2.2 encoders (single-turn or multi-turn) can be used depending on requirements.

EnDat 2.2 for motor size 3 and 4 - Technical data

Name

Order code (ee)

D4

D5

Operating principle

Optical

EnDat protocol

2.2

Single-turn / Multi-turn

S

M

Revolutions

1

4096

Resolution [bits single-turn / bits multi-turn]

23/0

23/12

Precision ["]

60

Cutoff frequency

Digital pos. in the encoder

Vibration in operation stator max [m/s2]

200

Shock during operation max [m/s2]

1000

PFH (probability of dangerous failure per hour) SIL 2

≤15 * 10-9

Manufacturer's website

www.heidenhain.de

Manufacturer's product ID

ECN 1123 FS

EQN 1135 FS

EnDat 2.2 for motor size 5 and 6 - Technical data

Name

Order code (ee)

DA

DB

Operating principle

Inductive

EnDat protocol

2.2

Single-turn / Multi-turn

S

M

Position values per revolution

524 288 (19-bit)

Distinguishable revolutions

1

4096

Resolution [bits single-turn / bits multi-turn]

19/0

19/12

Precision ["]

±65

Cutoff frequency

Digital pos. in the encoder

Vibration during operation [m/s2]

55 to 2000 Hz

Stator: ≤400 m/s2

Rotor: ≤600 m/s2 (EN 60068-2-6)

Shock during operation [m/s2]

Duration 6 ms (EN 60068-2-27)

≤2000

PFH (probability of dangerous failure per hour) SIL 2

≤15 * 10-9

Manufacturer's website

www.heidenhain.de

Manufacturer's product ID

ECI1319 FS

EQI1331 FS

Rated speed (nnn)

The stainless steel hygiene motors in the 8JSB / 8JSQ series are available with different nominal speeds:

Size

Lengths

1

2

3

4

5

3

5000

3000, 7000

2000, 4500

---

---

4

3000, 6000

3500, 6000

2500, 6000

2000, 5000

---

5

2500

1500, 3500

3000

1800, 3000

---

6

---

1800, 5000

1500, 4000

2000, 3000

2000

Holding brake (ff)

8JSB / 8JSQ motors available with an optional built-in holding brake. Retrofitting is not possible. The spring action brake (24 VDC) blocks the rotor when power is not applied.

Technical data for the standard holding brake

Name

Motor size

3

4

5

6

Holding torque MBr [Nm]

2.5

5.3

14.5

25

Connection power Pon [W]

10.1

12.8

19.5

25.7

Connection current Ion [A]

0.42

0.53

0.82

1.07

Connection voltage Uon [V]

24

24

24

24

Activation delay ton [ms]

0.01

0.015

0.015

0.02

Release delay toff [ms]

0.025

0.035

0.08

0.105

Moment of inertia JBr [kgcm²]

0.014

0.068

0.173

0.605

Mass mBr [kg]

0.35

0.63

1.1

2.0

Shaft end (ff)

The power is transmitted over the cylindrical shaft end, EN50347-compliant k6 fit with locking thread.

A keyed shaft is also available as an alternative. (The DIN 748-compliant keyway and the key correspond to DIN 6885 Form A, for stainless steel 1.4404.)

Special motor options (gg)

00...No special motor options

No special motor options are currently offered for 8JSB/ 8JSQ motors.

Motor version (h)

The motor version is automatically specified by the configurator and can be seen in the technical data.

Order code motor options (ff)

Motor option

Connection direction

Oil seal

Holding brake

Shaft end

Code for the order key (ff)

Straight, single-cable solution (hybrid)

Yes

---

Smooth

U6

Yes

---

With key

U7

Yes

Normal

Smooth

U8

Yes

Normal

With key

U9

Example order 1

A stainless steel three-phase synchronous motor of type 8JS for flange mounting (order code "B") was selected for an application. The size/length should be 43. An inductive single-turn encoder was chosen. The required speed is 2500 rpm. A brake is not required, the shaft is equipped with an oil seal, the output shaft should be smooth.

The code for the flange-mounted stainless steel motor 8JSB.

The code for the size/length is 43.

The code (ee) for the encoder system is D8.

The code (nnn) for a nominal speed of 2500 rpm is 025.

All 8JSB motors are equipped with option "single cable solution (hybrid cable) connector, straight, top". The option code (ff) is therefore always "U". The no holding brake and smooth shaft without oil seal options result in "6", so the option code is "U6"

No special options (gg), the code is 00.

The version has a fixed definition and is currently - 0.

The model number for the required motor is therefore 8JSB43.D8025U600-0.

Example order 2

A stainless steel three-phase synchronous motor of type 8JS for front mounting (order code "Q") was selected for an application. The size/length should be 65. An inductive multi-turn encoder was chosen. The required speed is 2000 rpm. A brake and oil seal are required (IP69K protection), the output shaft should be smooth.

The code for the flange-mounted stainless steel motor 8JSQ.

The code for the size/length is 65.

The code (ee) for the encoder system is DB.

The code (nnn) for a nominal speed of 2000 rpm is 020.

All 8JSQ motors are equipped with option "single cable solution (hybrid cable) connector, straight, top". The option code (ff) is therefore always "U". The holding brake and smooth shaft with oil seal options result in "8", so the option code is "U8"

No special options (gg), the code is 00.

The version has a fixed definition and is currently - 0.

The model number for the required motor is therefore 8JSQ65.DB020U800-0.

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