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Determining the 8JSB/8JSQ order code

Bestellschlüssel Kopf HP 8JS  DE

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.

  •  
    8JSB_Q Kühlart_KostruktionKAT_DE_EN
     
Size (c)

8JSB and 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.

  • Cooling type / Construction
    Available sizes
     
    3
    4
    5
    6
    8JS
    B
    Yes
    Yes
    Yes
    Yes
    Q
    Yes
    Yes
    Yes
    Yes
    Available sizes
Length (d)

8JSB and 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 and 8JSQ series motors in single-turn or multi-turn variants are equipped with inductive encoders.

EnDat encoders

General information

The encoders operate with a serial transfer protocol. This protocol is called EnDat. The EnDat protocol is a developed standard that incorporates the advantages of absolute and incremental position measurement and also offers a read/write parameter memory in the encoder. The embedded parameter chip is stored by B&R in this encoder memory. This data and the B&R ACOPOS systems form a plug-and-play drive solution. Absolute positioning can be used within a revolution with the single-turn variants. A homing procedure is not required because of the absolute position measurement. For applications where the motor covers several revolutions for positioning, a multi-turn encoder that can save up to 65535 revolutions can be used. A solution with a single-turn encoder variant with a homing procedure is also possible. In EnDat 2.1 analog/digital sampling, a very fine resolution is achieved by the evaluation modules developed by B&R.

For the advanced, fully digital EnDat 2.2 protocol, the positions are generated directly in the encoder and communicated serially with the drive system. This transfer is very robust in relation to disturbances and is even certified for safety applications.

EnDat 2.2 is preferred.

  • Encoder type / Order code
    D8
    D9
    Operating principle
    Inductive
    Inductive
    EnDat protocol
    2.2
    2.2
    Functional safety
    No
    No
    Single-turn / Multi-turn
    S
    M
    Revolutions
    Digital pos. in the encoder
    Digital pos. in the encoder
    Number of lines
    Digital pos. in the encoder
    Digital pos. in the encoder
    Resolution
    [bits single-turn / bits multi-turn]
    19/0
    19/12
    Precision ["]
    120
    120
    Switching frequency ≥ [kHz]
    Digital pos. in the encoder
    Digital pos. in the encoder
    Vibration during operation - Stator
    max [m/s2]
    400
    400
    Vibration during operation - Rotor
    max [m/s2]
    600
    600
    Shock during operation max [m/s2]
    2000
    2000
    Manufacturer's product ID
    ECI 1119 FS
    EQI 1131 FS
    Manufacturer's website
    www.heidenhain.de

  • Encoder type / Order code
    DA
    DB
    Operating principle
    Inductive
    Inductive
    EnDat protocol
    2.2
    2.2
    Functional safety
    No
    No
    Single-turn / Multi-turn
    S
    M
    Revolutions
    1
    4096
    Number of lines
    Digital pos. in the encoder
    Digital pos. in the encoder
    Resolution
    [bits single-turn / bits multi-turn]
    19/0
    19/12
    Precision ["]
    65
    65
    Switching frequency ≥ [kHz]
    Digital pos. in the encoder
    Digital pos. in the encoder
    Vibration during operation - Stator
    max [m/s2]
    400
    400
    Vibration during operation - Rotor
    max [m/s2]
    600
    600
    Shock during operation max [m/s2]
    2000
    2000
    Manufacturer's product ID
    ECI 1319 FS
    EQI 1331 FS
    Manufacturer's website
    www.heidenhain.de
Rated speed (nnn)

The stainless steel hygiene motors in the 8JSB and 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.

  • Name
    Motor size
     
    3
    4
    5
    6
    Holding torque MBr [Nm]
    2.5
    5.3
    14.5
    25
    Connected load Pon [W]
    10.1
    12.8
    19.5
    25.7
    Supply current Ion [A]
    0.42
    0.53
    0.82
    1.07
    Supply voltage Uon [V]
    24
    24
    24
    24 VDC
    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
    Technical data – Standard holding brake
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 shaft key correspond to DIN 6885 T1 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, hybrid motor cable
    Yes
    No
    Smooth
    U6
       
    Keyed
    U7
      
    Normal
    Smooth
    U8
       
    Keyed
    U9

Example order 1

A stainless steel three-phase synchronous motor with type 8JS for flange mounting (order code "B") is selected for the application. The size/length should be 43. An inductive single-turn encoder was chosen. The required speed is 2500 rpm. A brake and oil seal are not required, 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 "0", so the option code is "U0"

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 8JSB43.D8025U000-0

Example order 2

A stainless steel three-phase synchronous motor with type 8JS for front mounting (order code "Q") is selected for the 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 8JSQ65.DB020U800-0

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