8LT

b

c

d

.

ee

nnn

ff

gg

-

h

Kühlart / Bauform

Baugröße

Baulänge

Motorgebersystem

Nenndrehzahl

Motoroptionen

Sondermotoroptionen

Motorversion

Bestellschlüssel geben nur in Ausnahmefällen Aufschluss über die möglichen Kombinationen.

Informationen zur Kombinierbarkeit sind im configuratore CAD abrufbar.

Kühlart / Bauform (b)

Kühlart / Bauform (b)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT torque motors are available in cooling types 8LTA, 8LTB, 8LTJ, 8LTK, 8LTQ and 8LTS.

Cooling types are distinguished by a character (b) in the model number.

Cooling type (b)

Shaft end

8LTA

Self-cooling

ISO output flange

8LTB

Hollow shaft

8LTJ

Liquid-cooled

ISO output flange

8LTK

Hollow shaft

8LTQ

Self-cooling

Shaft with blind hole

8LTS

Liquid-cooled

Self-cooling motors

ISO output flange

Hollow shaft

Shaft with blind hole

Liquid-cooled motors

ISO output flange

Hollow shaft

Shaft with blind hole

Baugröße (c)

Baugröße (c)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT torque motors are available in various sizes (9 and C). These differ in dimensions (especially flange dimensions) and power data.

The sizes are distinguished by a character (c) in the model number. The list of sizes is ascending.

Verfügbarkeit

Available sizes (c)

8LTx9

8LTxC

8LTA

Yes

Yes

8LTB

Yes

---

8LTJ

Yes

Yes

8LTK

Yes

---

8LTQ

Yes

Yes

8LTS

Yes

Yes

Baulänge (d)

Baulänge (d)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT torque motors are available in various lengths. These differ in the power data with identical flange dimensions.

The lengths are distinguished by a number (d) in the model number. The larger this number, the longer the respective motor.

Verfügbarkeit

Available lengths (d)

8LTxx3

8LTxx4

8LTxx5

8LTxx6

8LTxx7

8LTxx8

8LTx9

YesNot available for 8LTB / 8LTK

Yes

Yes

Yes

Yes

---

8LTxCNot available for 8LTB / 8LTK

Yes

Yes

Yes

Yes

Yes

Yes

Motorgebersysteme (ee)

Motorgebersysteme (ee)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT torque motors are equipped with a magnetic or EnDat encoder. The encoder system is specified as part of the order number in the form of a 2-digit code (ee).

Magnetischer EnDat Geber

With the hollow-shaft motor variant (8LTB and 8LTK), EnDat 2.2 encoders (M0) with distance-coded absolute position are used.

Commissioning

When started for the first time, the motor does not detect its actual position. A shaft movement of ≤18° degrees is required for detection. Preferably in single-phase mode (stepper mode).

Drehrichtung

Hohlwellenmotoren (8LTB / 8LTK) weichen von der üblichen Drehrichtung (rechts) ab und werden linksdrehend ausgeliefert. Eine softwareseitige Anpassung auf rechtsdrehend ist durch den Anwender möglich.

Encoder type / Order code

M0

Operating principle

Magnetic

EnDat protocol

2.2

Functional safety

No

Single-turn/Multi-turn

S

Revolutions

1

Resolution

[bits single-turn / bits multi-turn]

14/0

Accuracy

Absolute after 18 degrees

Stator - Vibration during operation

Max. [m/s2]

300

Rotor - Vibration during operation

Max. [m/s2]

300

Max. shock during operation [m/s2]

1000

Manufacturer's product ID

AK ERM 2410 EnDat22

Availability

Available encoders / Order code (ee)

M0

8LTA

---

8LTB

Yes

8LTJ

---

8LTK

Yes

8LTQ

---

8LTS

---

Endat 2.2 Geber

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 therefore to be preferred over the older EnDat 2.1 variant.

Technical data

Encoder type / Order code (ee)

E6

E7

D0

D1

S0

S1

Operating principle

Optical

EnDat protocol

2.1

2.2

Functional safety1)

---

Yes

Single-turn/Multi-turn

S

M

S

M

S

M

Revolutions

1

4096

1

4096

1

4096

Resolution

[bits single-turn / bits multi-turn]

13/0

13/12

25/0

25/12

25/0

25/12

Accuracy ±["]

20

Cutoff frequency ≥ [kHz]

400

Digital pos. in the encoder

Stator - Vibration during operation

Max. [m/s2]

300

Rotor - Vibration during operation

Max. [m/s2]

300

Max. shock during operation [m/s2]

2000

Probability of dangerous failure per hour (PFH) SIL 2

---

≤10 * 10-9

Manufacturer's product ID

ECN 1313
EnDat01

EQN 1325
EnDat01

ECN 1325 FS
EnDat22

EQN 1337 FS
EnDat22

ECN 1325 FS
EnDat22

EQN 1337 FS
EnDat22

1)See appendix B "Safety level overview for ACOPOS product family safety functions" of the SafeMOTION user's manual (MAACPMSAFEMC-ENG), which is available in the Downloads section of the B&R website (www.br-automation.com).
There are additional limitations when combining B&R motors with a gearbox, see section "1.2.1 ACOPOSmulti SafeMOTION EnDat 2.2 and ACOPOS P3 SafeMOTION" of the SafeMOTION user's manual (MAACPMSAFEMC-ENG), which is available in the Downloads section of the B&R website (www.br-automation.com).

Availability

Available encoders / Order code (ee)

E6

E7

D0

D1

S0

S1

8LTA

Yes

Yes

Yes

Yes

Yes

Yes

8LTB

---

---

---

---

---

---

8LTJ

Yes

Yes

Yes

Yes

Yes

Yes

8LTK

---

---

---

---

---

---

8LTQ

Yes

Yes

Yes

Yes

Yes

Yes

8LTS

Yes

Yes

Yes

Yes

Yes

Yes

Nenndrehzahl (nnn)

Nenndrehzahl (nnn)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

Torquemotoren 8LT sind mit verschiedenen Nenndrehzahlen erhältlich.

Die Nenndrehzahl wird in Form eines dreistelligen Codes (nnn) als Teil der Bestellnummer angegeben.

DrehrichtungHohlwellenmotoren (8LTB / 8LTK) weichen von der üblichen Drehrichtung (rechts) ab und werden linksdrehend ausgeliefert. Eine softwareseitige Anpassung auf rechtsdrehend ist durch den Anwender möglich.

Bestellcode (nnn)

A08

001

003

005

009

010

Nenndrehzahl nN [min-1]

80

100

300

500

900

1000

Verfügbarkeit 8LTx9

verfügbare Nenndrehzahlen nN [min-1]

80

100

300

500

900

1000

8LTx93

---

---

Ja 1)

Ja 1)

---

Ja 1)

8LTx94

---

---

Ja

Ja

---

Ja

8LTx95

---

---

Ja

Ja

---

Ja

8LTx96

---

---

Ja

Ja

---

Ja

8LTx97

---

---

Ja

Ja

Ja 2)

Ja

8LTx98

---

---

---

Ja

---

Ja

1)für 8LTB / 8LTK nicht erhältlich
2)für 8LTA / 8LTB / 8LTQ nicht erhältlich

Verfügbarkeit 8LTxC

verfügbare Nenndrehzahlen nN [min-1]

80

100

300

500

900

1000

8LTxC3

Ja

Ja

Ja 1)

Ja 1)

---

---

8LTxC4

Ja

Ja

Ja

Ja

---

---

8LTxC5

Ja

Ja

Ja

Ja

---

---

8LTxC6

Ja

Ja

Ja

Ja

---

---

8LTxC7

Ja

Ja

Ja

Ja

---

---

8LTxC8

Ja

Ja

Ja

Ja

---

---

1)für 8LTB / 8LTK nicht erhältlich
Motoroptionen (ff)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

Bestellschlüssel

See the following table for the corresponding code (ff) in the order key.

Motor option

Order code (ff)

Connection direction

Oil seal

Power connection

Encoder connection

Angled (swivel)

Angled (swivel)

---

F0

Yes

F3

Straight

---

F6

Yes

F9

Anschlussrichtung (ff)

Anschlussrichtung (ff)

Leistungs- und Geberanschluss

8LT torque motors are available with 2 different connection options. The position of the connections is determined by the design of the shaft end.

8LTA / 8LTJ / 8LTQ / 8LTS

For motors with ISO output flange or a shaft with blind hole, the connections are at the rear end.

Power connection: Angled (swivel)

Encoder connection: Angled (swivel)

Power connection: Straight

Encoder connection: Angled (swivel)

For details about whether connections can rotate, see the CAD configurator at CAD configurator.

8LTB / 8LTK

Motors with hollow shafts have the connections on the top.

Power connection: Angled (swivel)

Encoder connection: Angled (swivel)

Power connection: Straight

Encoder connection: Angled (swivel)

For details about whether connections can rotate, see the CAD configurator at CAD configurator.

Kühlmittelleitungsanschluss 8LTJ / 8LTK / 8LTS

The coolant inlet and outlet are straight internal threads (1/4"G).

Wellendichtring (ff)

Wellendichtring (ff)

All 8LT torque motors are available with a form A oil seal per DIN 3760.


With an oil seal, the motors have IP65 protection per EN 60034-5.

Wartung

Damit die Funktion des Wellendichtringes auf Dauer gewährleistet ist, muss er regelmäßig mit Öl geschmiert werden. Ein nicht geschmierter Wellendichtring verhärtet durch die erhöhte Reibungswärme und kann dann nur noch die Funktion als Staubschutz auf Dauer gewährleisten.

Für eine ausreichende Schmierung des Wellendichtrings ist während der gesamten Lebensdauer des Motors zu sorgen.

Daher ist der Anbau eines Getriebes an Motoren mit Wellendichtring nicht zulässig!

Sondermotoroptionen (gg)

Sondermotoroptionen (gg)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

Es sind keine Sondermotoroptionen verfügbar. Gültiger Code (gg) in der Bestellnummer ist 00.

Motorversion (h)

Motorversion (h)

8LT

b

c

d

.

ee

nnn

ff

gg

-

h

Die Motorversion wird als Code (h) in der Bestellnummer angegeben. Aktuell ist Motorversion 0 gültig.

Bestellbeispiel 1

Bestellbeispiel 1

A torque motor of type 8LSA45 with a nominal speed of 300 rpm has been selected for an application. The motor should have a 2048-line EnDat single-turn encoder. Both the motor and the encoder plugs should be swivel plugs.

The code (ee) for the encoder system is E6.

The code (nnn) for a nominal speed of 300 rpm is 003.

The code (ff) for the other options (connection direction) is F0.

The model number for the required motor is 8LTA93.E6003F000-0

Bestellbeispiel 2

Bestellbeispiel 2

A three-phase synchronous motor of type 8LTJ97 with a nominal speed of 500 rpm has been selected for an application. The motor should have an oil seal and a 2048-line EnDat multi-turn encoder. The motor plug should have a straight connection. The encoder plug should have a "swivel (angled)" connection.

The code (ee) for the encoder system is E7.

The code (nnn) for a nominal speed of 500 rpm is 005.

The code (ff) for the other options (oil seal and connection direction) is F9.

The model number for the required motor is 8LTJ97.E7005F900-0

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