8WS | b | c | d | . | ee | nnn | ff | gg | - | h | ||||||||||||||||
Cooling / Construction type | ||||||||||||||||||||||||||
Size | ||||||||||||||||||||||||||
Length | ||||||||||||||||||||||||||
Motor encoder system | ||||||||||||||||||||||||||
Nominal speed | ||||||||||||||||||||||||||
Motor options (degree of protection / connection type / shaft end) | ||||||||||||||||||||||||||
Cable length | ||||||||||||||||||||||||||
Motor version | ||||||||||||||||||||||||||
Order codes only provide information about possible combinations in exceptional cases. Information about possible combinations is available in the CAD configurator under cad.br-automation.com.
Cooling / Construction type (b)
Cooling / Construction type (b)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
8WS servo motors with cooling / construction type A are self-cooling and have a long, slim design. The motors must be installed with the mounting flange (cooling surface).
Valid code: A
Size (c)
Size (c)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
8WS servo motors are available in various sizes (1, 2, 3, 4). These differ in dimensions (especially flange dimensions) and power data. The different sizes are distinguished by a number (c) in the model number. The larger this number, the larger the flange dimensions and power data of the respective motor.
Available sizes (c) | ||||
|---|---|---|---|---|
1 (ø 17 mm) | 2 (ø 22 mm) | 3 (ø 32 mm) | 4 (ø 40 mm) | |
8WSA | Yes | Yes | Yes | Yes |
Length (d)
Length (d)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The available lengths have different performance data and are distinguished by a digit (d) in the order number.
Available lengths (d) | |||
|---|---|---|---|
1 (Length 10) | 2 (Length 20) | 3 (Length 30) | |
8WSA1 | Yes | --- | --- |
8WSA2 | Yes | --- | --- |
8WSA3 | --- | Yes | --- |
8WSA4 | --- | --- | Yes |
Motor encoder systems (ee)
Motor encoder systems (ee)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The encoder system is listed as part of the model number in the form of a 2-digit code (ee).
The order code (ee) for the SSI encoder (single-turn) is F0.
Technical data
Order code (ee) | |
|---|---|
F0 (SSI encoder, single-turn) | |
Supply voltage | 5 V ±10% |
Current consumption | 60 mA effective |
Number of outputs | 3 SSI serial / CLK / Data differential, max. 60 mA |
Absolute value generation | Digital absolute position information within one rotor revolution |
Resolution | 4096 positions per revolution (12-bit) |
Precision | ±1° (up to ±0.4° possible on request) |
Maximal speed | 30,000 rpm |
Temperature of workspace | -40°C to 125°C |
Nominal speed (nnn)
Nominal speed (nnn)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The nominal speed is specified as part of the order number in the form of a 3-digit code (nnn).
Available nominal speeds nN [rpm] at 60 VDC operation | ||
|---|---|---|
5,500 | 8,500 | |
Order code (nnn) | ||
055 | 085 | |
8WSA11 | --- | Yes |
8WSA21 | --- | Yes |
8WSA32 | --- | Yes |
8WSA43 | Yes | --- |
Motor options (ff)
Motor options (ff)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The available motor options are summarized in the following table; they are distinguished by a code (ff) in the order number.
Protection class | Shaft end | Connection type | |||
|---|---|---|---|---|---|
IP54 | IP66/67 | IP69K | |||
Order code (ff) | |||||
8WSA11 | V0 | V4 | --- | Smooth | Hybrid motor cable attached to the motor |
8WSA21 | V0 | V4 | --- | ||
8WSA32 | V0 | V4 | --- | ||
8WSA43 | V0 | V4 | V8 | ||
 |
Cable length (gg)
Cable length (gg)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The code (gg) in the order number provides information about the cable length. The available cable lengths are summarized in the following table.
Available cable lengths | ||||||
|---|---|---|---|---|---|---|
0.3 m | 0.5 m | 1.0 m | 2.0 m | 3.0 m | 5.0 m | |
Order code (gg) | ||||||
LA | LB | LC | LD | LE | LF | |
8WSA11 | --- | Yes | --- | --- | Yes | --- |
8WSA21 | --- | Yes | --- | --- | Yes | --- |
8WSA32 | --- | Yes | --- | --- | Yes | --- |
8WSA43 | --- | Yes | --- | --- | Yes | --- |
 |
Motor version (h)
Motor version (h)
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
The motor version is specified as a code (h) in the model number. Motor version 0 is currently valid.
Example order 1
Example order 1
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
A servo motor of type 8WSA32 with a nominal speed of 8,500 rpm was selected for an application. Protection class IP66/67 is required. The hybrid motor cable on the motor should be 3 m long.
The code (c) for the selected size (3 = ø 32 mm) is 3.
The code (d) for the selected length (2 = 20) is 2.
The code (ee) for the encoder system (SSI encoder, single-turn) is F0.
The code (nnn) for the selected nominal speed (8,500 rpm) is 085.
The code (ff) for the selected motor options (protection class IP66/67) is V4.
The code (gg) for the selected cable length (3.0 m) is LE.
The code (h) for the motor version (0) is 0.
The order number for the necessary motor is therefore 8WSA32.F0085V4LE-0.
Example order 2
Example order 2
8WS | A | c | d | . | ee | nnn | ff | gg | - | h | |||||||||||
A servo motor of type 8WSA43 with a nominal speed of 5,500 rpm was selected for an application. A hygienic design with protection class IP69K is required. The hybrid motor cable on the motor should be 0.5 m long.
The code (c) for the selected size (4 = ø 40 mm) is 4.
The code (d) for the selected length (3 = 30) is 3.
The code (ee) for the encoder system (SSI encoder, single-turn) is F0.
The code (nnn) for the selected nominal speed (5,500 rpm) is 055.
The code (ff) for the selected motor options (protection class IP69K) is V8.
The code (gg) for the selected cable length (0.5 m) is LB.
The code (h) for the motor version (0) is 0.
The order number for the necessary motor is therefore 8WSA43.F0055V8LB-0.